Flowserve FlowAct Series, FlowAct 1502, FlowAct 253, FlowAct 503, FlowAct 3002 User Instructions

...

Download

USER INSTRUCTIONS

FlowAct

Diaphragm Linear Actuator

FCD VLENIMFACTA4 10/16

Installation

Operation

Maintenance

Experience in Motion

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Diaphragm Linear Actuator - FlowAct

Diaphragm actuators take the form of a ﬂexible diaphragm, placed between two casings. The upper section of the two chambers is designed pressure tight, the lower chamber holds a spring opposing the force generated within the pressure chamber of the actuator. The controlled air supply is connected to the pressure tight chamber, and an increase or decrease of the air pressure results in a positioning force of the stem. This kind of actuator is called single acting with spring return positioning force for linear motion. The linear motion / stroke is limited by a stroke range from 10 - 100 mm and a positioning force range from 500 - 60.000 N dependent on the actuator size. The actuator parts are designed so that the actuator can be assembled in two fail safe positions, close or open. Simplicity of design reduces maintenance and parts inventory costs. It is ideally suited for ﬂow and pressure control of liquid and gas media in oil and gas, power, chemical and petrochemical processing and related industries. The FlowAct is manufactured to ISO 9001 standards.

The following instructions are designed to assist in unpacking, installing and performing maintenance as required on Flowserve FlowAct diaphragm linear actuators. This instruction manual does not include speciﬁc product design data. Such data can be found on the actuator’s serial plate or speciﬁcation documents; additionally, dimensional information can be found in the FlowAct technical bulletin. Procure needed documents as necessary before you begin any work on the valve.

Figure 1: FlowAct - Actuator, Spring close

User Instructions cannot deal with all possible situations and installation options. It is required that only trained and qualiﬁed technicians are authorized to adjust, repair or work on diaphragm linear actuators, positioners and other accessories. Review this bulletin prior to installing, operating or performing any maintenance on the actuator. Additional Installation, Operation, and Maintenance Instructions (IOMs) cover other features (such as positioners and other accessories).

To avoid possible injury to personnel or damage to actuator parts, WARNING and NOTICE indicators must be strictly followed. Modifying this product, substituting non-factory parts or using maintenance procedures other than outlined could drastically affect performance and be hazardous to personnel and equipment and may void existing warranties. This manual should be used in conjunction with applicable local and national laws. Failure to comply with User Instructions will render the manufacturer’s guarantee and liability null and void. Unless otherwise agreed, the manufacturer’s general terms and conditions of sale shall apply.

Read the user instructions carefully before use.

Keep for future reference.

Figure 2: FlowAct - Actuator, Spring opens

Contents

1 Scope of Manual 3 7 Storage 4 13 Troubleshooting 12 - 13

2 Intended Use 3 8 Unpacking 4 - 5 14 Operating the Handwheel 13

3 Product Identiﬁcation 3 9 Installation 5 - 8 15 Disassembly and Reassembly 13 - 73

4 Modiﬁcation 3 - 4 10 Assembly on valve 8 - 10 16 Torque Requirements 74

5 Safety 4 11 Actuator Quick-Check 10 - 11 17 Lubricants 74

6 Packaging and Transport 4 12 Actuator Maintenance 11 - 12 18 Disposal 75

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

1 Scope of Manual

The following user information covers the FlowAct diaphragm linear actuator:

• Preferable for Flowserve - Villach valve product lines

• For the product range of

Type Positioning Force (N) Stroke (mm) 253 500 - 12 500 10 - 20 503 1 000 - 25 000 20 - 40 701 1 400 - 35 000 20 - 60 1502 3 000 - 60 000 20 - 100 3002 6 000 - 60 000 40 - 100

• Air supply max. 6 bar or as indicated on the type plate

• Protection class IP 54, with air purging IP 64

• Without or with attachments like:

- top mounted handwheel

- top mounted adjustable stroke limitation - max. 39 kN

- side-mounted handwheel - max. 39 kN

- central-mounted handwheel

components to match each application. There are two fail safe positions, close or open without or with attachments.

The FlowAct is designed in compliance with EN 1349:2009

- Industrial Process Control Valves (DIN EN 1349 and VDE 0409-1349).

The FlowAct actuator is designed for use in MODERATE and WORLDWIDE environmental conditions, standard ambient temperature range -40°C to +80°C (-40°F to 176°F). A special version is available with conditions up toup to -60°C, air humidity up to 93% non-condensing, air pollution up to 300 µg/m3, (unless restricted by the accessories).

The product offering may include optional ancillary equipment, such as positioners, air-ﬁlter regulators, solenoid valves, limit switches or boosters. Digital, I/P, or pneumatic positioners can be mounted direct or with a mounting bracket. Refer to the relevant manufacturer‘s user instructions for information regarding other ancillary equipment.

3 Product Identiﬁcation

• Comes with or without ancillary equipment

2 Intended Use

WARNING

rated for speciﬁc application conditions. Before installation, check the serial number and / or the tag number to ensure that the valve and actuator being installed are correct for the intended application. Do not use the valve assembly outside of its rated design limits. Exceeding the design limits may cause hazardous conditions including leakage of the process media or rupture of the pressure boundary resulting in possible process loss, equipment or environmental damage, or serious personal injury or death.

Speciﬁc product design data can be found on the actuators serial plate, data sheet and the calculation sheet (in acc. to the IEC 60534-7:2010).

The FlowAct handles a wide variety of general service applications.

Diaphragm linear actuators are pressure vessels designed and

Each FlowAct diaphragm linear actuator comes with an attached serial plate which includes key information speciﬁcally for each actuator:

Figure 3: Serial Plate (Example)

The same serial number shown on the plate will appear on all FlowAct data sheets, dimensional drawings, bills of material, and spare parts lists. Other information located on the serial plate is self-explanatory for the FlowAct actuator.

You can download .pdf versions of the FlowAct documentation including a sales brochure, technical bulletin and user instructions at www.ﬂowserve.com. It is the user’s responsibility to keep this and related documentation on ﬁle and accessible for the FlowAct product.

The FlowAct consists of the actuator, yoke and attachments and accessories. The actuator is designed with a high level of interchangeability allowing the user to assemble the greatest possible number of variations from a minimum number of

4 FlowAct Modiﬁcation

FlowAct linear actuators are generally delivered as tested and assembled units.

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Unauthorized modiﬁcation of the FlowAct diaphragm linear actuator voids the product test certiﬁcation and product warranties, could drastically affect product performance and could be hazardous to personnel and equipment.

NOTICE

in compliance with all test routines, guidelines and engineering standards.

Before FlowAct re-installation, all necessary tests must be repeated and recorded

5 Safety

Safety terms - WARNING and NOTICE - are used to highlight speciﬁc dangers and / or provide additional information that may not be readily apparent in the User Instructions. WARNING directions must be strictly followed.

follow HPE standards. (Nonreturnable packaging may contain up to 90% recyclable materials.)

7 Storage

Maximum storage time for diaphragm linear actuators is 2 years at 25 °C.

NOTICE

Upon arrival on site, store the FlowAct actuator on a solid base in a cool, dry closed room. Until its installation, the actuator must be protected from the weather, dirt and other potentially harmful inﬂuences.

Do not remove the protective covers from the air supply connection of the actuator or from the instrument and accessories until the actuator is ready for installation at the site.

Rubber becomes brittle, lubricants become resinous, see also ISO 2230.

WARNING

death and substantial property damage can occur if proper precautions are not taken.

NOTICE indicates practices or provides

NOTICE

additional technical information.

WARNING indicates that severe personal injury,

Grey ﬁelds indicate safety-related informations.

6 Packaging and Transport

Pay close attention to shipping marks and transport pictograms.

Careful packing, loading and transport arrangements are required to prevent products from being damaged during transport. Standard packaging includes a cardboard box, with or without a wooden pallet base as needed. Special packaging may include a wooden box. Packaging may use cardboard, plastic wrap, foam, or paper as packing material. Filling material may be a carton type or paper.

8 Unpacking

Hoisting and lifting are inherently dangerous activities and require safe rigging and proper training to mitigate hazards. Use standard industry safety practices, personal protection, and warranted lifting devices.

WARNING

tuator. Do not allow the actuator assembly to rotate during removal. Do not stand under suspended loads. Failure to do so can cause serious personal injury and damage the actuator or nearby equipment.

NOTICE

low the sling to touch the stem, travel indicator or peripheral equipment. Observe the maximum permitted carrying capacity.

1. Check the packing list against materials received to ensure all components and accessories are present.

Be aware that the center of gravity may be above or beside the lifting point. Do not al-

Crushing hazard ! Arrange rigging to prevent tipping of the ac-

Shipping marks display product and package dimensions and weight (for further information request Packaging and Sending Instructions, Form L 002). Packing guidelines for export

2. Place and hook a double-leg sling (if necessary a tripleleg sling) into the lifting rings mounted on the actuator.

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

3. You can alternatively place a sling around the actuator case just above the yoke.

4. Upon removing the actuator from the packaging, we recommend that you:

• Promptly touch up any damage to the paint that of-

fers corrosion protection.

• Contact your shipper immediately to report any

damage.

• Call your Flowserve representative if you experience

any problems.

Do not remove the protective covers from the air supply connection of the actuator or from the instrument ports of the actuator and accessories until the actuator is ready for installation at the site.

Figure 4: Triple-Leg Sling (Example)

9 Installation

The actuator must be installed and commissioned by qualiﬁed staff - personnel who are familiar with the installation, commissioning and operation of this product and possess the relevant qualiﬁcations in their ﬁeld of activity.

Prior to installation of the actuator, we require, that you check the following conditions to reduce the risk of malfunction and safety related incidents.

No. Check Possible malfunction or safety related incident

1 Conﬁrm that the nominal / operational data on the

serial plate matches the operational data of the facility.

An operational mismatch can cause considerable damage to the actuator or may lead to a failure at the facility.

Table 1: Basic safety massages for installing the actuator (continued on next page 6)

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

No. Check Possible malfunction or safety related incident

2 Conﬁrm that the ambient temperature is not elevated

permanent above 160 °F (70 °C)(unless restricted by the accessories).

3 Conﬁrm that the air supply and instrument signal

lines are dry and clear of dirt and oil.

4 Conﬁrm that the actuator and valve can be installed in

an upright position.

5 Conﬁrm that the yoke and needed parts are available

for mounting on the valve.

6 Conﬁrm that the valve stem and connecting parts

match.

7 Conﬁrm the actuator has enough overhead clearance

to disassemble the valve from the pipeline.

A sustained exceeding of the permissible ambient temperature of 18 °F (10 °C) may halves the lifetime of non-metallic components, such as diaphragms, O-rings and scraper rings.

At a minimum, the instrument air must conform to ISA- 7.0.011996 (ISO 8573-1 Compressed Air - Class 2) requirement or those of the accessory manufacturer.

Non-upright positioning may result in premature wear.

Yoke - connection dimensions see page 7

Yoke - connection dimensions see page 7.

Minimum clearance zone see page 8

8 If there is an unused air connection ensure that it is

properly sealed (see page 7).

9 Conﬁrm removal of all hazards and ensure appropriate

protective measures are in place.

10 Conﬁrm the valve / actuator is grounded in order to

prevent an electrical discharge.

11 Throttling control valves are typically equipped with

a pneumatic actuator and valve positioner. Refer to the appropriate positioner manual for connections and maximum air supplies.

The venting chamber of the pneumatic actuator is always equipped with a venting plug. The pneumatic actuator types 253, 503 and 701 have two air connectors joining the pressure-tight actuator housing. One of this air connectors is used to control the actuator depending on the mounted accessories. The remaining connector on the actuator (S) or on the yoke (T) must be appropriately sealed. This feature is not applicable for type 1502 and 3002.

none

Noncompliance may result in electrical discharges.

The air supply must be limited to less than 87 psig (6 bar) per the actuator serial plate. An air ﬁlter regulator should be installed to ensure that the supply pressure to the pneumatic actuator does not exceed the air supply pressure indicated on the serial plate.

Table 1: Basic safety massages for installing the actuator

After these requirements are conﬁrmed the actuator can be installed and connected to the valve.

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

~ M

Stroke

2 x M8

T Internal Air Supply

Yoke - connection dimensions (mm)

External Air Supply

VDI/VDE 3847

interface

Supply

Ø B

Ø D

Additional interface for MULTI function yoke only Additional internal air supply for IAS and MULTI-yoke only

2 x M8

Air

Actuator Size

250 500 700 1500 3000

G 3/8 (Plug acc. to DIN 908 & O-ring 10x2 mm - if appl.)

G 1/4 (Plug acc. to DIN 906 - if applicable, G 1/2 - DVGW)

T Internal Air Supply

G 1/2

Yoke dimensions

Size Stroke Ø B ~ M G T Ø D H

250

500

700

1500 20

3000 40 82 140 M16 29 105 25 82 140 M20 29 105 25

10 - 65 110 M12 23 95 20 - -

40 82 140 M20 22 110 25 82 140 M16 25 115 25 82 140 M16 16 115

40 82 140 M20 22 110 25 82 140 M16 25 115 25 82 140 M16 16 115 25 82 140 M20 20 115 25

60 82 148 M20 34 110 25

40 82 140 M16 29 105 25 82 140 M20 29 105 25

60 82 150 M20 29 105 25 -

80 82 140 M20 29 105 25 82 140 M20 29 105 25

100 82 140 M20 29 105

60 82 150 M20 29 105 25 -

80 82 140 M20 29 105 25 82 140 M20 29 105 25

100 82 140 M20 29 105 25 -

ATTENTION: FlowPro with Nominal Size DN 25 or 1”, Stroke 20 mm:

IAS-Yoke for MULTI-Yoke for NAMUR-Yoke for

Valtek GS FlowTop, Valtek CS FlowTop FlowPro

Y Ø B ~ M G T Ø D HY Ø B ~ M G T Ø D HY Ø B ~ M G T Ø D HY

49 106 M12 18 75 20

65 106 M16 18 90 20

49 144 M12 54 75 20

65 145 M16 59 90 20

49 144 M12 54 75 20

65 145 M16 59 90 20

65 105 M12 23 95 20 65 105 M12 12 95 20 82 150 M16 16 115 25

65 105 M12 23 115 20 65 105 M12 16 95 20 82 150 M16 16 115 25

25 82 140 M20 20 115 25

65 105 M12 23 115 20 65 105 M12 16 95 20 82 150 M16 16 115 25

82 150 M20 20 125 25 -

65 105 M12 29 110 20 82 150 M16 20 110 20

25 -

Packing Design -> adjustable -> Ø B = 65 mm, M = 105 mm, G = M12, Ø D = 95 mm and HY = 20 mm only ! Packing Design -> spring loadet -> Ø B = 82 mm, M = 170 mm, G = M12 only !

Table 2: Basic safety massages for installing the actuator

, VariCool

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Minimum Clearance Zone

~ 180 mm

for actuator

~ 7.1 inch

Removal space

~ H

valve

Height of

~ R

Face to face

Figure 5: Overhead clearance drawing

~ R ~ H

Actuator Size

250 mm 135 195 290 - 335 595

500 mm 180 195 330 - 460 870

700 mm 205 205 345 - 600 925

1500 mm 275 - 415 685 800 -

3000 mm 275 - 415 685 1140 -

without

accessories

Table 3: Overhead clearance dimensions / drawing

accessories

direct mounted

accessories

NAMUR -

mounted

dimensions

side mounted

hand wheel

with

without

hand wheel

10 Assembly on valve

structions using only original equipment manufacturer

The FlowAct diaphragm linear actuator is allowed to be assembled and reassembled only by qualiﬁed staff - personnel who are familiar with assembling, reassembling, installation and commissioning of this product, and possess the relevant qualiﬁcations in their ﬁeld of activity.

When performing repairs, personnel are to follow these in-

(OEM) spare parts and recommended special tools to ensure the reliability of the FlowAct diaphragm linear actuator.

Only Flowserve trained and authorized personnel are allowed to repair (disassemble and reassemble) the FlowAct in hazardous areas.

Actuators for oil and grease-less service or oxygen service may only be disassembled and reassembled in clean rooms (ISO 14644- ISO 8, US FED STD 209 E - M 6.5, or equivalent).

max

with

top mounted

hand wheel

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

WARNING

Diaphragm linear actuators are pressure vessels. Improper opening of the actuator can result in bodily injury.

Actuator assembly procedure

1. Fix the valve on the assembly table.

NOTICE

mounting position !

2. Lubricate all threads with a suitable, approved lubricant (see Section 16).

3. Mount the actuator / yoke and yoke lock nut (76) onto the valve bonnet.

4. Finger tighten and ﬁx the yoke lock nut; turn clockwise (see Section 15).

NOTICE

The orientation of the valve must be in accordance with the appropriate

The legs of the yoke should be parallel to the ﬂow direction !

14. The valve is ready for the mounting of the accessories.

Actuator

344

249

240

345

113

5. If the fail safe position at air failure moves the stem into closing position then must the actuator connected with the air supply to move the stem into the open (retracted) position (in most cases).

WARNING

tween the yoke legs while the valve is in operation.

6. Mount the lock nut (113) and lower coupling (345) onto the valve stem.

7. Justify the plug against the seat.

8. Adjust the distance between the lower coupling (345) ant the upper coupling (249) with the aid of an adapter in stroke height (Figure 7).

9. Disconnect the air supply so that the actuator moves to the close position.

10. Mount the cap screws (240).

11. Lock the lock nut (113). Secure the upper coupling (249) against turn unwanted with a wrench.

Due to risk of crushing hazard, do not work be-

Valve

Figure 6: Yoke assembly drawing

Item

76 5.10 Yoke lock nut 249 5.3 Upper coupling 113 5.2 Lock nut 344 5.4 Lock nut 240 5.5 Cap screw 345 5.1 Lower coupling

Part

Table 4: Coupling parts identiﬁcation

Item

WW EU

Part

12. Adjust the stroke indicator scale so that the zero mark is in conjunction with the stroke indicator.

13. Perform three full strokes and check if the stroke indicator scale correspond with the end positions.

Stroke

Figure 7: Stroke adjusting

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Reassemble the valve into the pipe

1. Remove the protective ﬂange covers and coating from the control valve; clean the ﬂange gasket surface.

NOTICE

graphite gaskets. Review a current chemical resistance list before applying.

Unsuitable cleaning agents can damage and cause leakage in PTFE and

11 Valve Quick-Check

Apply appropriate personal protective equipment when working on the control valve to prevent hazards arising from the operation. Protect yourself against freezing, burns and cuts by wearing appropriate protective clothing, gloves and eye protection.

2. Install the valve so that the actuator is in an upright position whenever possible. Vertical installation permits easier actuator maintenance.

3. Install and connect the control valve to the pipeline. Locate gaskets in the center of the body ﬂanges and secure nuts and bolts.

4. Connect the air supply and instrument signal lines.

Do not over-tighten packing.

Sudden exposure of the control valve to full working pressure and temperature may cause stress cracks.

Prior to valve operation, we require, that you check the following conditions to reduce the risk of malfunction and safety related incidents.

No. Important information Possible malfunction or safety related incident

Avoid critical operating conditions where excessive noise or vibration levels might occur.

Avoid frequent system start-ups and shutdowns. Critical operating conditions, which can damage the

Keep the operating medium free of foreign particles. Installing a suitable strainer upstream of the control valve

Instrument air must conform to ISA 7.0.01-1996 (with a dew point at least 18 °F (10 °C) below ambient temperature, particle size below 1 µm and oil content not to exceed 1 ppm)

Do not touch the body and bonnet ! The temperature of the operating medium is transferred to the

surface of the linear actuator.

Critical operating conditions can cause excessive or hazardous levels of vibration or noise.

Impermissible continuous operation of a control valve under critical conditions can damage the valve.

control valve, may be encountered during system start-up or shut down.

can prevent foreign particles from damaging the valve.

Contaminated instrument air can damage the accessories and diaphragm linear actuator or cause them to fail.

Excessive hot surface temperatures can put you at risk for burns.

Frigid surface temperatures can put you at risk for freezing.

Impermissible levels of vibration can cause hearing loss, vascular and nerve damage and damage to joints and bones. Use hearing protection when noise levels exceed 80 dB(A).

Incorrect maintenance can result in the emission of hot, cryogenic, and / or toxic operating media.

Table 5: Basic safety massages for operating the valve

Incorrect maintenance can put you at risk for heat related burns, freezing, acid burns or poisoning.

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

WARNING

while the valve is in operation.

Prior to start-up, we strongly recommend that you:

1. Stroke the valve and compare the plug position indicator on the stem clamp to the stroke indicator plate. The plug should change position in a smooth, linear fashion.

NOTICE

such as PTFE. If over tightened, excessive friction may impair smooth control.

2. Adjust instrument signals to ensure a full stroke.

Due to risk of crushing hazard, do not work between the yoke legs

Graphite packing commonly creates more friction than other materials,

12 Actuator Maintenance

Maintenance intervals and service life of an actuator is unique to local environmental conditions at the site. The intervals speciﬁed in the User Instructions are recommendations and serve only as a guide. Under difﬁcult operating conditions, maintenance may be more frequent. We strongly recom-

3. Check the packing box bolting to ensure the correct adjustment.

NOTICE

that may impede plug movement.

4. Continuously increase load until operation parameters are reached.

5. Minor relaxation of the ﬂange bolting is possible after initial assembly. Retorque the bonnet ﬂange bolting if necessary before installation or following an initial temperature excursion to ensure the bonnet gaskets do not leak.

(See User Instructions - Control Valve).

mend a site survey followed by a documented procedure for performing the maintenance work. Maintenance personnel should perform and log the work accordingly. The data collected can be used as a basis for dynamically determining the maintenance intervals and activities.

Over tightening can cause excessive packing wear and high stem friction

Recommended Maintenance Actions

No.

1 Visual inspection of

2 Visual inspection of

3 Visual inspection of

4 Operation test

Recommended maintenance actions using the Logix digital positioner with ValveSight diagnostic solution software

5 Visual inspection of

diagnostic interface

6 Check health parameter

of actuator

7 Check health parameter

of positioner

Service

the actuator

the tightness Preventive maintenance

of the diaphragm

case bolting

Inter-

val

Bi-

weekly

Bi-

weekly

Yearly No action Retighten case bolting if

Weekly No action -

Warn-

ing

Warn-

ing

Good Adequate Inadequate

No action Clean actuator stem with a

soft cloth

No action Retighten leaky air supply,

case bolting

Dependent upon results of previous maintenance (see numbers 1 and 2 above) or a minimum of once every 10 years

diaphragm leaks.

No action Perform 3 full strokes using air supply; check for leakage

Take action per warning Overhaul or replace required part per

valve is healthy No action -

actuator is healthy

No action positioner healthy

Check and retighten air supply

Start step test Overhaul or replace positioner after

Valve Condition

Repair or replace actuator according to product life cycle

Replace leaky air supply, diaphragm, O-ring immediately

Remove from service and replace case bolting, diaphragm immediately if external leakage persists or if bolting is damaged

alarm Overhaul or replace actuator after

alarm

Table 6: Service activities check list

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Prior to valve maintenance it is required that you check the following conditions to reduce the risk of malfunction and safety related incidents.

No.

1 Check for signs of leakage through the case bolting

and end ﬂanges.

2 Check if all nuts and bolts are securely fastened.

3 Check valve for smooth, full-stroke operation. Un-

steady stem movement could indicate an internal valve problem.

WARNING

from all moving parts when operating the control valve can cause serious injury.

1. Clear all dirt and / or foreign material from the shaft and control valve.

2. If leakage is detected, retighten the bolting.

3. Activities on the valve, see separate document.

Check Possible malfunction or safety related incident

Table 7: Basic safety massages for maintenance the valve

Crushing hazard ! Failure to keep hands, hair, and clothing away

Tighten the case bolting nuts. See Section 14: Disassembly and Reassembly for instructions. Also see Section 15.

Avoid critical operating conditions if excess noise or vibration levels occur during operation.

Internal valve failure requires an immediate overhaul or actuator replacement by qualiﬁed stuff.

6. Make sure all accessory brackets and bolting are securely fastened.

7. Check control valve health parameters:

• Characteristic curves of the valve with ﬂow

• Upstream pressure

• Downstream pressure

4. Make sure all nuts and bolts are securely fastened.

5. If possible, stroke the valve and check for smooth, full-stroke operation. Unsteady stem movement could indicate an internal valve problem.

into the control room.

NOTICE

differ by more than 5%, maintenance may be required.

Monitor trim and bonnet components. If nominal and actual values

13 Troubleshooting

Contact customer service department or contract partner for any fault or defect found, otherwise the manufacturer‘s guarantee shall be rendered null and void and the manufacturer released from any responsibility. If the user performs the repairs, these User Instructions must be adhered to and carried out in a competent manner. Original Equipment Manufacturer spare parts must be used to make the repair.

Defect No. Possible Causes Remedy

Stem does not move 1.1 • No energy supply (pneumatic air)

to actuator and accessories (positioner, air ﬁlter regulator, solenoid valve, limit switch, and/ or special accessories)

• Pneumatic actuators: Check supply for leaks Check air pressure (usually 6 bar; 88 psig)

1.2 • Mounted accessories do not work • See User Instructions for accessory manufacturer

1.3 • Pneumatic actuator is defective • Contact customer service department or contract partner

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Defect No. Possible Causes Remedy

Jerky stem movement 2.1 • Damaged stem • Contact customer service department or contract

partner

2.2 • Actuator not powerful enough • Compare actuator speciﬁcations on the serial plate with operation speciﬁcations of the facility. If incompatible, contact customer service department or contract partner

Stem travel less than full stroke (0 to 100 %)

No limit switch signal 4.1 • Power supply to limit switch

Unstable positioner 5.1 • Defective positioner • See user instruction of the positioner manufacturer

14 Operation of the handwheel

WARNING

during regular operation. Actuation is only permitted with separated air supply !

1. The handwheel is always in the neutral position in the delivery condition.

2. The handwheel are designed to act against the fail safety position of the actuator. That means in the case of an pneumatic actuator design with restoring springs.

3.1 • Air supply pressure too low • Provide air at the pressure stated on the serial plate (European production only).

3.2 • Pneumatic actuators:

Improper handwheel position

3.3 • Improperly adjusted or defective

positioner

3.4 • Foreign particles in valve seat or

damaged trim

interrupted

4.2 • Limit switch out of adjustment • Readjust limit switch operating distance; see limit

Table 8: Trouble-shooting

Due to risk of crushing hazard, do not work with the handwheel

3. All handwheel designs are immediately ready for use,

4. Check the progress of the stroke adjustment on the

5. If normal operation is to be resumed, the handwheel

• Move handwheel to limit position , otherwise contact factory for information.

• Readjust positioner to positioner manufacturer‘s speciﬁcation

• Contact customer service department or contract partner

• Check power supply (connections, circuit breakers, voltage)

switch data sheet

NOTICE

out the actuator the handwheel has no function.

except the lateral handwheel for the 1502 and 3002 actuator. In the event of fail safe position - spring-to-

open (retracted) - before using, the handwheel must turned counterclockwise up to contact the drive pin the coupling and subsequently locked.

stroke indicator scale.

must be turned always to the neutral position.

When adjusting, then the handwheel press against the spring force - with-

15 Disassembly and Reassembly

The FlowAct linear actuator is allowed to be disassembled and reassembled only by qualiﬁed staff

- personnel who are familiar with disassembling, reassembling, installation and commissioning of this product, and possess the relevant qualiﬁcations in their ﬁeld of activity.

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

When performing repairs, personnel are to follow these instructions using only original equipment manufacturer (OEM) spare parts and recommended special tools to ensure the reliability of the FlowAct linear actuator.

Only Flowserve trained and authorized personnel are allowed

WARNING

Prior to disassemble and reassemble, we require, that you check the following conditions to reduce the risk of malfunction and safety related incidents.

No. Important information Possible malfunction or safety related incident

1 Disregarding these instructions may bring serious or

harmful consequences.

Always observe system safety instructions when preparing for and performing the repair

procedure.

Pneumatic actuator are pressure vessels. Improper opening of the actuator can result in bodily injury.

to repair (disassemble and reassemble) the FlowAct in hazard areas.

Actuators and valves for oil and grease-less service or oxygen service only be disassembled and reassembled in clean rooms (ISO 14644- ISO 8, US FED STD 209 E - M 6.5, or equivalent).

Failure to comply with these user instructions will render the manufacturer‘s guarantee and liability null and void. Unless otherwise agreed, the manufacturer‘s general terms and conditions of sale shall apply.

Potential hazards and their sources are under the operator‘s inﬂuence. The operator must observe national and international environmental regulations for control valve removal from the pipe and cleaning. Permissible exposure limits must be maintained, appropriate personal protective equipment must be used and service personnel must be properly instructed in performing the repair procedure.

3 Make sure the pipeline is depressurized an in

ambient state, also a suitable rigging (e.g. Endless Sling) and securing devices (e.g. Vee Trough with Stands / Vise) are readily available.

4 Conﬁrm that you have the required spare parts at the site. Not having the full complement of parts, accessories and

6 Review the serial plate information to identify the actua-

7 Check all parts for damage such as scoring, deformities,

Conﬁrm that you have the required tools avail-

able to manage the disassembly and reassembly (Special Tools on request !).

tor. The serial number and the part numbers needed are required when ordering spare parts.

corrosion or overexpansion.

Table 9: Basic safety massages for repairing the actuator

Remove the valve / actuator from the pipeline in a depressurized and ambient state. Failure to do so can cause serious personal injury. The control valve is not equipped with integral stands, therefore guard against the valve from tipping over. Bodily injuries can be the result. Use appropriate clamps, blocking or other stabilizing support. Attachment to overhead crane can ensure stability.

tools can slow or stop repair work.

Improper tools and / or improper use of tools can result in personal injury or damage to the parts.

A serial plate used for product identiﬁcation is attached on every valve / actuator (See Section 3: Product Identiﬁcation).

If in doubt, replace faulty parts. Never reuse gaskets.

After these requirements are conﬁrmed the pneumatic actuator can be maintained and repaired.

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Disassemble the actuator from the valve:

WARNING

Improper opening of the actuator

can result in bodily injury.

1. Disconnect the air supply from the actuator and / or assembled accessories.

2. Disassemble the accessories from the actuator as necessary.

3. If is mounted a handwheel-side disassemble this ﬁrst (see pages 37 - 38).

4. Realize the fail safe position of the actuator. The coupling parts must be free of positioning force.

Crushing hazard ! The

Actuators are pressure vessels.

WARNING

actuator stem is under spring load. Never disconnect the air supply during next steps, the stem will extends very quickly.

• If the actuator stem is extended, drive it into re-

tracted position by connecting air supply.

344

249

Actuator

240

345

113

Valve

• If the actuator stem is retracted no further action

is required.

• If the valve type is a three way valve drive the stem

into center position by connecting and control air supply.

5. Keep upper coupling (249) from turning by secure with a wrench. Turn the lock nut (113) clockwise to loosen.

6. Turn the cap screws (240) counterclockwise to loosen.

7. Turn the yoke lock nut (76) counterclockwise to loosen.

8. Disconnect the air supply from the actuator if applicable.

9. Lift off the actuator safely.

10. Place the actuator on an assembly table and ﬁx the yoke for disassembly.

Figure 8: Yoke assembly drawing

Item

76 5.10 Yoke lock nut 249 5.3 Upper coupling 113 5.2 Lock nut 344 5.4 Lock nut 240 5.5 Cap screw 345 5.1 Lower coupling

Part

Table 10: Coupling parts identiﬁcation

Item

WW EU

Part

The modular design of the actuators enables a wide variety of variants. Following therefore is always described the individual module and not the entire actuator. We ask for your understanding.

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Reassemble the Actuator onto the valve:

1. Mount the actuator onto the bonnet and tighten the yoke lock nut (76) clockwise.

The legs of the yoke should be parallel

NOTICE

to the ﬂow direction.

2. Move the actuator to the open position.

3. Screw in the lock nut (113) onto the valve stem so it is screwed all the way and lower coupling (345) three turns and move the actuator into the closed position.

The plug must be aligned onto the

NOTICE

seat. The cushioning effect of the bel-

lows can be prevented by tightening the packing follower.

4. Move the actuator back into the open position and adjust the distance between the lower coupling (345) and upper coupling (249) by adjusting the stroke length.

Valve size Stroke

+ 0,5

15 - 25 1/2“ - 1“ 10

15 - 50 1/2“ - 2“ 20

65 - 100 3“ - 4“ 40

125 - 150 6“ 60

200 - 300

8“ - 12“ 1)80

400 16“ 100

Table 11: Stroke adjustment length ( 1) depends on the valve

series)

mm 0.394

+ 0,5

mm 0.787

+ 0,5

mm 1.574

+ 0,8

mm 2.362

+ 0,8

mm 3.150

+ 0,8

mm 3.937

+ 0.02

+ 0.03

in.

9. Check handwheel-side for correct limit position, if applicable.

10. Reassemble the accessory on the valve as necessary, see relevant accessory User Instruction.

11. Perform three full strokes and check the free movement of the actuator.

12. For installation the valve into the pipeline and further steps see User Instructions for applicable valve types.

13. Log the maintenance interval and the work performed.

Actuator

344

249

240

345

113

5. Move the actuator to the close position and install the cap screws (240).

6. Lock the lock nut (113). Keep upper coupling (249) from turning by securing with a wrench.

7. If a handwheel-side was mounted reassemble as next (see pages 37 - 38).

The handwheel-side always presses

NOTICE

on the coupling, depending on the safety position when actuated. The lever arms must be positioned so that this condition is given.

8. Place the handwheel-side on the yoke and straighten it, mount the washer (140) and hex bolt (150) and tighten it, if applicable.

Valve

Figure 9: Yoke assembly drawing

Item

76 5.10 Yoke lock nut 249 5.3 Upper coupling 113 5.2 Lock nut 344 5.4 Lock nut 240 5.5 Cap screw 345 5.1 Lower coupling

Part

Table 12: Coupling parts identiﬁcation

Item

WW EU

Part

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Pneumatic Actuator - Type 253, 503, 701

• Type 1502 see page 39

• Type 3002 see page 57

light-duty heavy-duty

see pages 26 - 27 see pages 28 - 31 see pages 32 - 33

Attachments

Handwheel Stroke Limitation

adjustable limit stop

Actuator without attachments Actuator with attachments

Spring-to-close Spring-to-open Spring-to-close Spring-to-open

see pages 18 - 19 see pages 20 - 21 see pages 22 - 23 see pages 24 - 25

Cast yoke design acc. to IEC 60534-6-1 Handwheel

NAMUR-yoke,

with double mounting pads

MULTI-yoke,

with pad and interface for

direct positioner and sole-

noid valve mounting

IAS-yoke,

with double pads and in-

terface for direct positioner

mounting

side-mounted

for IAS-yoke only

see page 34 see page 35 see page 36 see pages 37 - 38

ﬂowserve.com

Actuator without attachments

Spring-to-close

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Disassembly instruction of the actuator subassembly

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened.

2. Loosen the lock nut (344) counterclockwise and disassemble the upper coupling (249) and lock nut clockwise (see page 15).

3. Disassemble the short hexagon bolts (335), plain washers (337), hexagon nuts (351) and ring nuts (209).

4. Pull off the protection sleeve (339).

springs inside.

5. Lubricate the threads and loosen the long hexagon bolts (336), plain washers (337) and hexagon nuts (351) uniformly in a clockwise sequence as the springs expand.

Limit disassembly only to necessary components.

WARNING

Risk of injury by jumping out parts ! Pre-loaded

Reassembly instruction of the actuator subassembly

NOTICE

13. Lubricate the new O-ring (275), new scraper ring (273) with an appropriate lubricant and install into the guide bushing (253).

14. Lubricate the new O-ring (272) with an appropriate lubricant.

15. Lower the thrust washer (255), diaphragm (225), O-

onto the stem (211).

16. Lubricate the thread of the stem (211) with an appropriate lubricant and install and ﬁnger tighten the special nut (348).

NOTICE

of the Positioning Template. Mark the position.

Always replace parts showing wear with new parts.

ring (272), diaphragm plate (227), spacer bushing (228), lock washer (349)

The diaphragm plate should be positioned to the diaphragm with the aid

NOTICE

8.8 or higher, as well as washers and nuts.

6. Lift off the diaphragm casing (203), distance plate (231) and spring adjusting plate (326).

7. Remove the actuator springs (229).

8. Carefully remove the diaphragm-stem unit (211 - 349).

9. Remove the scraper ring (273) and O-ring (275).

10. Secure the diaphragm-stem unit into the Special Tool.

11. Loosen the special nut (348) counterclockwise and remove the lock washer (349), spacer bushing (228), diaphragm plate (227), diaphragm (225), O-ring (272) and thrust washer (255).

12. Check stressed surface areas for damage such as scoring and deformities. Use a brass brush or similar tool to clean bolting. Check for corrosion or any other damage.

We recommend using threaded bolts meeting standards from ISO 898-1,

17. Turn the special nut (348) clockwise using a suitable torque wrench.

18. Loosen and remove the diaphragm-stem unit (211-

349) from the Special Tool. Lubricate the actuator stem with an appropriate lubricant.

19. Carefully lower the diaphragm-stem unit (211- 349) into the diaphragm casing.

NOTICE

Mark align.

20. Install and align the actuator springs (229).

21. Install and positioning the spring adjusting plate (326) such that the drilling, mark and air connection match.

22. Install the distance plate (231) and diaphragm casing (203), positioning the casing such that the drilling, mark and air connections match.

23. Lubricate the threats of the long hexagon bolts (336) with an appropriate lubricant then compress the springs

Position the diaphragm-stem unit such that the air connection and the

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

uniformly in a clockwise sequence by tightening the long hexagon bolts (336), plain washers (337) and hexagon nuts (351). Alternative method see NOTICE step 5.

24. Install the short hexagon bolts (335), hexagon nuts (351) as well as the hexagon bolts (335) and ring nuts (209).

25. Tighten the nuts (351) using a crosswise pattern in four steps.

26. Install the protection sleeve (339).

27. Reassemble the yoke and coupling parts, perform three full strokes then check the tightening of the casing bolting.

Item #

Part

WW EU

202 6.1 Diaphragm Casing

203 6.2 Diaphragm Casing

209 6.6 Ring Nut

211 6.12 Stem

225 6.16 Diaphragm

227 6.15 Diaphragm Plate

228 6.13 Spacer Bushing

229 6.21 Actuator Spring

231 6.22 Distance Plate

253 6.8 Guide Bushing

254 6.80 Plain Bearing

255 6.18 Thrust Washer

258 6.26 Vent Plug

272 6.17 O-Ring

273 6.11 Scraper Ring

275 6.10 O-Ring

326 6.23 Spring Adjusting Plate

335 6.3.1 Hexagon Bolt - short

336 6.3.2 Hexagon Bolt - long

337 6.5 Plain Washer

339 6.25 Protection Sleeve

348 6.20 Special Nut

349 6.19 Lock Washer

351 6.4 Hexagon Nut

28. Log the maintenance interval and the work performed.

29. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

336

335

337

203 258

231

326

229

202 253 254

351

339

275

273

Table 13: Actuator parts

Figure 10: Actuator parts

ﬂowserve.com

Actuator without attachments

Spring-to-open

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Disassembly instruction of the actuator subassembly

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened.

2. Loosen the lock nut (344) counterclockwise and disassemble the upper coupling (249) and lock nut clockwise (see page 15).

3. Disassemble the hexagon bolts (335), plain washers (337), hexagon nuts (351) and ring nuts (209).

4. Pull off the protection sleeve (339).

springs inside.

5. Lubricate the threads and loosen the long hexagon bolts (336), plain washers (337) and hexagon nuts (351) uniformly in a clockwise sequence as the springs expand.

NOTICE

8.8 or higher, as well as washers and nuts.

6. Lift off the diaphragm casing (203).

Limit disassembly only to necessary components.

WARNING

We recommend using threaded bolts meeting standards from ISO 898-1,

Risk of injury by jumping out parts ! Pre-loaded

Reassembly instruction of the actuator subassembly

NOTICE

14. Lubricate the new O-ring (275), new scraper ring (273) with an appropriate lubricant and install into the guide bushing (253).

15. Lubricate the new O-ring (272) with an appropriate lubricant.

16. Lower the spacer bushing (228), diaphragm plate

onto the stem (211).

17. Lubricate the thread of the stem (211) with an appropriate lubricant and install and ﬁnger tighten the special nut (348).

18. Turn the special nut (348) clockwise using a suitable torque wrench.

19. Loosen and remove the diaphragm-stem unit (211-

349) from the Special Tool. Lubricate the actuator stem with an appropriate lubricant.

20. Install and positioning the spring adjusting plate (326) such that the drilling and air connection match.

Always replace parts showing wear with new parts.

(227), diaphragm (225), O-ring (272), thrust washer (255), lock washer (349)

7. Carefully remove the diaphragm-stem unit (211 - 349).

8. Remove the actuator springs (229).

9. Remove the spring adjusting plate (326).

10. Remove the scraper ring (273) and O-ring (275).

11. Secure the diaphragm-stem unit into the Special Tool.

12. Loosen the special nut (348) counterclockwise and remove the lock washer (349), thrust washer (255), Oring (272), diaphragm (225), diaphragm plate (227), and spacer bushing (228).

13. Check stressed surface areas for damage such as scoring and deformities. Use a brass brush or similar tool to clean bolting. Check for corrosion or any other damage.

21. Install and align the actuator springs (229).

22. Carefully lower the diaphragm-stem unit (211- 349) into the diaphragm casing.

23. Install the diaphragm casing (203), positioning the casing such that the air connections are aligned.

24. Lubricate the threats of the long hexagon bolts (336) with an appropriate lubricant then compress the springs uniformly in a clockwise sequence by tightening the long hexagon bolts (336), plain washers (337) and hexagon nuts (351). Alternative method see NOTICE step 5.

25. Install the short hexagon bolts (335), hexagon nuts (351) as well as the hexagon bolts (335) and ring nuts (209).

26. Tighten the nuts (351) using a crosswise pattern in four steps.

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

27. Install the protection sleeve (339).

28. Reassemble the yoke and coupling parts, perform three full strokes then check the tightening of the casing bolting.

29. Log the maintenance interval and the work performed.

30. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

Item #

Part

WW EU

202 6.1 Diaphragm Casing

203 6.2 Diaphragm Casing

209 6.6 Ring Nut

211 6.12 Stem

225 6.16 Diaphragm

227 6.15 Diaphragm Plate

228 6.13 Spacer Bushing

229 6.21 Actuator Spring

253 6.8 Guide Bushing

254 6.80 Plain Bearing

255 6.18 Thrust Washer

258 6.26 Vent Plug

272 6.17 O-Ring

273 6.11 Scraper Ring

275 6.10 O-Ring

326 6.23 Spring Adjusting Plate

335 6.3.1 Hexagon Bolt - short

336 6.3.2 Hexagon Bolt - long

337 6.5 Plain Washer

339 6.25 Protection Sleeve

348 6.20 Special Nut

349 6.19 Lock Washer

351 6.4 Hexagon Nut

209

348

349

255

225

227

228

211

336

335

337

203

272

229

326

202 253 254 258

351

339

275

273

Table 14: Actuator parts

Figure 11: Actuator parts

ﬂowserve.com

Actuator with attachments

Spring-to-close

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Disassembly instruction of the actuator subassembly

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened.

2. Disassemble the attachments ﬁrst (see page 16).

3. Loosen the lock nut (344) clockwise and disassemble the upper coupling (249) and lock nut (see page 15).

4. Disassemble the hexagon bolts (335), plain washers (337), hexagon nuts (351) and ring nuts (209).

5. Pull off the protection sleeve (339).

springs inside.

6. Lubricate the threads and loosen the long hexagon bolts (336), plain washers (337) and hexagon nuts (351) uniformly in a clockwise sequence as the springs expand.

Limit disassembly only to necessary components.

WARNING

Risk of injury by jumping out parts ! Pre-loaded

Reassembly instruction of the actuator subassembly

NOTICE

14. Lubricate the new O-rings (275), new scraper rings (273) with an appropriate lubricant and install into the guide bushing (253 and 390).

15. Lubricate the new O-ring (272) with an appropriate lubricant.

16. Lower the thrust washer (255), diaphragm (225), O-

onto the stem (211).

17. Lubricate the thread of the stem (211) with an appropriate lubricant and install and ﬁnger tighten the special stem (348).

NOTICE

of the Positioning Template. Mark the position.

18. Turn clockwise the special stem (348) using a suitable torque wrench.

Always replace parts showing wear with new parts.

ring (272), diaphragm plate (227), spacer bushing (228), lock washer (349)

The diaphragm plate should be positioned to the diaphragm with the aid

NOTICE

8.8 or higher, as well as washers and nuts.

7. Lift off the diaphragm casing (203) and spring adjusting plate (326).

8. Remove the actuator springs (229).

9. Carefully remove the diaphragm-stem unit (211 - 349).

10. Remove the scraper rings (273) and O-rings (275).

11. Secure the diaphragm-stem unit into the Special Tool.

12. Loosen the special stem (348) counterclockwise and remove the lock washer (349), spacer bushing (228), diaphragm plate (227), diaphragm (225), O-ring (272) and thrust washer (255).

13. Check stressed surface areas for damage such as scoring and deformities. Use a brass brush or similar tool to clean bolting. Check for corrosion or any other damage.

We recommend using threaded bolts meeting standards from ISO 898-1,

19. Loosen and remove the diaphragm-stem unit (211

- 349) from the Special Tool. Lubricate the actuator stems with an appropriate lubricant.

20. Carefully lower the diaphragm-stem unit (211 - 349) into the diaphragm casing.

NOTICE

Mark align.

21. Install and align the actuator springs (229).

22. Install and positioning the spring adjusting plate (326) such that the drilling, mark and air connection match.

23. Install the diaphragm casing (203), positioning the casing such that the drilling, mark and air connections match.

24. Lubricate the threats of the long hexagon bolts (336) with an appropriate lubricant and load the springs uniformly in a clockwise sequence by tightening the long hexagon bolts (336), plain washers (337) and hexagon nuts (351). Alternative method see NOTICE step 6.

Position the diaphragm-stem unit such that the air connection and the

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

25. Install the short hexagon bolts (335), hexagon nuts (351) as well as the hexagon bolts (335) and ring nuts (209).

26. Tighten the nuts (351) using a crosswise pattern in four steps.

27. Install the protection sleeve (339).

28. Reassemble the yoke and coupling parts, perform three full strokes then check the tightening of the casing bolting.

Item #

Part

WW EU

202 6.1 Diaphragm Casing

203 6.2 Diaphragm Casing

209 6.6 Ring Nut

211 6.12 Stem

225 6.16 Diaphragm

227 6.15 Diaphragm Plate

228 6.13 Spacer Bushing

229 6.21 Actuator Spring

231 6.22 Distance Plate

253 6.8 Guide Bushing

254 6.80 Plain Bearing (2x)

255 6.18 Thrust Washer

258 6.26 Vent Plug

272 6.17 O-Ring

273 6.11 Scraper Ring (2x)

275 6.10 O-Ring (2x)

276 6.9 O-Ring

326 6.23 Spring Adjusting Plate

335 6.3.1 Hexagon Bolt - short

336 6.3.2 Hexagon Bolt - long

337 6.5 Plain Washer

339 6.25 Protection Sleeve

348 6.29 Stem

349 6.19 Lock Washer

351 6.4 Hexagon Nut

390 6.24 Guide Bushing

29. Log the maintenance interval and the work performed.

30. The actuator subassembly is ready for the reassemble of the attachments - see page 16 - and accessories.

336

335

337

202

276

390 254

258

326

229

202

276

253 254

351

339

275

273

Table 15: Actuator parts

Figure 12: Actuator parts

ﬂowserve.com

Actuator with attachments

Spring-to-open

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Disassembly instruction of the actuator subassembly

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened.

2. Disassemble the attachments ﬁrst (see page 16).

3. Loosen the lock nut (344) clockwise and disassemble the upper coupling (249) and lock nut (see page 15).

4. Disassemble the hexagon bolts (335), plain washers (337), hexagon nuts (351) and ring nuts (209).

5. Pull off the protection sleeve (339).

springs inside.

6. Lubricate the threads and loosen the long hexagon bolts (336), plain washers (337) and hexagon nuts (351) uniformly in a clockwise sequence as the springs expand.

NOTICE

8.8 or higher, as well as washers and nuts.

7. Lift off the diaphragm casing (203).

8. Carefully remove the diaphragm-stem unit (211 - 349).

9. Remove the actuator springs (229).

Limit disassembly only to necessary components.

WARNING

We recommend using threaded bolts meeting standards from ISO 898-1,

Risk of injury by jumping out parts ! Pre-loaded

Reassembly instruction of the actuator subassembly

NOTICE

15. Lubricate the new O-rings (275), new scraper rings (273) with an appropriate lubricant and install into the guide bushing (253 and 390).

16. Lubricate the new O-ring (272) with an appropriate lubricant.

17. Lower the spacer bushing (228), diaphragm plate

onto the stem (211).

18. Lubricate the thread of the stem (211) with an appropriate lubricant and install and ﬁnger tighten the special stem (348).

19. Turn clockwise the special stem (348) using a suitable torque wrench.

20. Loosen and remove the diaphragm-stem unit (211

- 349) from the Special Tool. Lubricate the actuator stems with an appropriate lubricant.

21. Install and positioning the spring adjusting plate (326) such that the drilling and air connection match.

22. Install and align the actuator springs (229).

23. Carefully lower the diaphragm-stem unit (211 - 349) into the diaphragm casing.

Always replace parts showing wear with new parts.

(227), diaphragm (225), O-ring (272), thrust washer (255), lock washer (349)

10. Remove the spring adjusting plate (326).

11. Remove the scraper rings (273) and O-rings (275).

12. Secure the diaphragm-stem unit into the Special Tool.

13. Loosen the special stem (348) counterclockwise and remove the lock washer (349), thrust washer (255), Oring (272), diaphragm (225), diaphragm plate (227), and spacer bushing (228).

14. Check stressed surface areas for damage such as scoring and deformities. Use a brass brush or similar tool to clean bolting. Check for corrosion or any other damage.

24. Install the diaphragm casing (203), positioning the casing such that the air connections are aligned.

25. Lubricate the threats of the long hexagon bolts (336) with an appropriate lubricant and load the springs uniformly in a clockwise sequence by tightening the long hexagon bolts (336), plain washers (337) and hexagon nuts (351). Alternative method see NOTICE step 6.

26. Install the short hexagon bolts (335), hexagon nuts (351) as well as the hexagon bolts (335) and ring nuts (209).

27. Tighten the nuts (351) using a crosswise pattern in four steps.

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

28. Install the protection sleeve (339).

29. Reassemble the yoke and coupling parts, perform three full strokes then check the tightening of the casing bolting.

30. Log the maintenance interval and the work performed.

31. The actuator subassembly is ready for the reassemble of the attachments - see page 16 - and accessories.

Item #

Part

WW EU

202 6.1 Diaphragm Casing

209 6.6 Ring Nut

211 6.12 Stem

225 6.16 Diaphragm

227 6.15 Diaphragm Plate

228 6.13 Spacer Bushing

229 6.21 Actuator Spring

253 6.8 Guide Bushing

254 6.80 Plain Bearing (2x)

255 6.18 Thrust Washer

258 6.26 Vent Plug

272 6.17 O-Ring

273 6.11 Scraper Ring (2x)

275 6.10 O-Ring (2x)

276 6.9 O-Ring

326 6.23 Spring Adjusting Plate

335 6.3.1 Hexagon Bolt - short

336 6.3.2 Hexagon Bolt - long

337 6.5 Plain Washer

339 6.25 Protection Sleeve

348 6.29 Stem

349 6.19 Lock Washer

351 6.4 Hexagon Nut

390 6.24 Guide Bushing

336

335

337

202

276

390 254

272

229

326

202

276

253 254 258

351

339

275

273

Table 16: Actuator parts

Figure 13: Actuator parts

ﬂowserve.com

Actuator with Handwheel - light

Spring-to-close

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Disassembly instruction of the handwheel subassembly

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened.

2. Loosen the hexagon nut (372) clockwise.

3. Loosen the carrier (394) counter-clockwise.

4. Loosen the lock nut (256) counter-clockwise.

NOTICE

5. Lift off and store the handwheel safely, lose no parts.

6. For disassemble the actuator subassembly see pages 22 - 23.

Limit disassembly only to necessary components.

Use a rounded chisel and a hammer.

lock nut (256) clockwise.

NOTICE

9. Mount the hexagon nut (372) onto the actuator stem.

10. Mount the carrier (394) clockwise and lock the hexagon nut (372).

11. Connect the actuator with the air supply, perform three full strokes and check the free movement of the carrier.

NOTICE

12. Log the maintenance interval and the work performed.

13. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

Use a rounded chisel and a hammer.

The carrier must be able to move freely without hitting in the end-positions.

Reassembly instruction of the handwheel subassembly

7. Lubricate the threads of the actuator with an appropriate lubricant.

8. Mount the handwheel onto the actuator and tighten the

Item #

Part

WW EU

256 5.11 Lock Nut

372 6.30 Hex Nut

394 6.31 Carrier

HandWheel

394

256

372

Actuator

Table 17: Handwheel parts

Figure 14: Handwheel parts

Actuator with Handwheel - light

Spring-to-open

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Disassembly instruction of the handwheel subassembly

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened.

2. Turn the handwheel counter-clockwise as long as it reached the upper end-position.

3. Loosen the hexagon nut (372) clockwise.

4. Loosen the carrier (394) counter-clockwise.

5. Loosen the lock nut (256) counter-clockwise.

NOTICE

6. Lift off and store the handwheel safely, lose no parts.

7. For disassemble the actuator subassembly see pages 24 - 25.

Limit disassembly only to necessary components.

Use a rounded chisel and a hammer.

10. Mount the hexagon nut (372) onto the actuator stem.

11. Mount the carrier (394) clockwise and lock the hexagon nut (372).

12. Turn the handwheel clockwise as long as it reached the upper end-position.

13. Connect the actuator with the air supply, perform three full strokes and check the free movement of the carrier.

NOTICE

14. Log the maintenance interval and the work performed.

15. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

The carrier must be able to move freely without hitting in the end positions.

Reassembly instruction of the handwheel subassembly

8. Lubricate the threads of the actuator with an appropriate lubricant.

9. Mount the handwheel onto the actuator and tighten the lock nut (256) clockwise.

NOTICE

Item #

WW EU

256 5.11 Lock Nut

372 6.30 Hex Nut

394 6.31 Carrier

Use a rounded chisel and a hammer.

Part

Table 18: Handwheel parts

HandWheel

Figure 15: Handwheel parts

394

256

372

Actuator

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Actuator with Handwheel - heavy

Spring-to-close or -open

Disassembly instruction of the handwheel subassembly

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened.

2. Loosen the hex nuts (333) counter-clockwise.

3. Unlock the handwheel.

4. Turn the handwheel counter-clockwise until the assembly (329 - 393) is lifted off.

5. Remove the ﬂange (389) and pipe section (387).

6. Unlock the hex nut (6.30) clockwise.

7. Turn the threaded pin (331) counter-clockwise to loosen and remove stem-assembly (331 - 399) from the actuator stem.

Limit disassembly only to necessary components.

14. Lubricate the threads of the actuator and handwheelparts with an appropriate lubricant.

15. Place the ﬂange (390) onto the actuator and put in line with the mark.

16. Mount and tighten the lock nut (256) clockwise.

NOTICE

17. Mount the hexagon nut (372) onto the actuator stem so it is screwed all the way.

18. Mount and ﬁnger tighten the stud bolts (397) clockwise.

19. Place the stem-assembly (331 - 399) onto the actuator stem and mount the threaded pin (331) clockwise (screw-in depth once thread diameter). The positioning indicator should point forward.

20. Lock the hex nut (372) counter-clockwise.

Use a rounded chisel and a hammer.

8. Turn the stud bolts (397) counter-clockwise.

9. Mark the position of the ﬂange (390) to the actuator.

10. Loosen the lock nut (256) counter-clockwise.

NOTICE

11. Lift off the hex nut (372) and ﬂange (390).

12. Store all handwheel-parts safely, lose no parts.

13. For disassemble the actuator subassembly see pages 24 - 25.

Use a rounded chisel and a hammer.

Reassembly instruction of the handwheel subassembly

NOTICE

Always replace parts showing wear with new parts.

21. Carefully thump and thread the pipe section (387) onto the ﬂange (390).

22. Place the ﬂange (389) onto the pipe section (387).

23. Place the handwheel-assembly (329 - 393) onto the ﬂange (389), lift the stem-assembly (331 - 399) and turn up the handwheel to screw one into another. The grease nipple should point forward.

24. Mount the hex nuts (333) and ﬁnger-thigten.

25. Turn the handwheel clockwise as long as it reached the upper end-position.

26. Connect the actuator with the air supply, perform three full strokes and check the free movement of the threaded pin.

NOTICE

tions.

27. Lock the handwheel with the locking pin (332).

The threaded pin must be able to move freely without hitting in the end posi-

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

28. Log the maintenance interval and the work performed.

29. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

Item #

Part

WW EU

256 5.11 Lock Nut

329 6.73 O-Ring

330 6.72 Key Ring

331 6.62 Threaded Pin

332 6.70 Locking Pin

333 6.41 Hex Nut (4x)

340 6.68 O-Ring

341 6.67 O-Ring

342 6.71 Knotted Chain

365 6.63 Impact Grease Nipple

366 6.59 Compression Ring

367 6.61 Position Indicator

370 6.60 Parallel Key

372 6.30 Hex Nut

373 6.32 Bushing

375 6.33 Thrust Ball Bearing

380 6.36 Stem

381 6.66 Closure Screw

387 6.55 Pipe Section

388 6.57 Bearing Flange

389 6.40 Flange - top

390 6.38 Flange - bottom

391 6.58 Threaded Bushing

393 6.42 Handwheel

397 6.56 Stud Bolt (4x)

399 6.34 Threaded Ring

391 375 388 365 341 340 366 393 370 381 332 342 330 329

333

389

387

380 373 399 331

367

397

256

390

372

Actuator

Table 19: Handwheel parts

Figure 16: Handwheel parts

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Actuator with Handwheel - heavy

> Offshore - Design < Spring-to-close or -open

Disassembly instruction of the handwheel subassembly

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened.

2. Loosen the hex nuts (333) counter-clockwise.

3. Unlock the handwheel.

4. Turn the handwheel counter-clockwise until the assembly (266 - 393) is lifted off.

5. Remove the O-rings (264, 265), ﬂange (389, 263) and pipe section (387).

6. Unlock the hex nut (372) clockwise.

7. Turn the threaded pin (331) counter-clockwise to loosen and remove stem-assembly (331 - 399) from the actuator stem.

8. Turn the stud bolts (397) counter-clockwise.

Limit disassembly only to necessary components.

14. Lubricate the threads of the actuator and handwheelparts with an appropriate lubricant.

15. Place the ﬂange (390) onto the actuator and put in line with the mark.

16. Mount and tighten the lock nut (256) clockwise.

NOTICE

17. Mount the hexagon nut (372) onto the actuator stem so it is screwed all the way.

18. Mount and ﬁnger tighten the stud bolts (397) clockwise.

19. Place the stem-assembly (331 - 399) onto the actuator stem and mount the threaded pin (331) clockwise (screw-in depth once thread diameter). The positioning indicator should point half left.

20. Lock the hex nut (372) counter-clockwise.

21. Carefully thump and the pipe section (387) onto the ﬂange (390).

Use a rounded chisel and a hammer.

9. Mark the position of the ﬂange (390) to the actuator.

10. Loosen the lock nut (256) counter-clockwise.

NOTICE

11. Lift off the hex nut (372), ﬂange (390) and O-ring (262).

12. Store all handwheel-parts safely, lose no parts.

13. For disassemble the actuator subassembly see pages 24 - 25.

Use a rounded chisel and a hammer.

Reassembly instruction of the handwheel subassembly

NOTICE

Always replace parts showing wear with new parts.

22. Place the ﬂange (389) onto the pipe section (387) also the O-rings (264, 265).

23. Carefully place the handwheel-assembly (391 - 329) onto the ﬂange (389), lift the stem-assembly (331 -

399) and turn up the handwheel to screw one into another. The grease nipple should point forward.

24. Mount the hex nuts (333) and ﬁnger-thigten.

25. Turn the handwheel clockwise as long as it reached the upper end-position.

26. Connect the actuator with the air supply, perform three full strokes and check the free movement of the threaded pin.

NOTICE

tions.

27. Lock the handwheel with the locking pin (332).

The threaded pin must be able to move freely without hitting in the end posi-

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

28. Log the maintenance interval and the work performed.

29. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

Item #

Part

WW EU

256 5.11 Lock Nut

262 6.74 O-Ring

263 6.75 O-Ring (2x)

264 6.76 O-Ring

265 6.77 O-Ring (4x)

266 6.78 O-Ring

267 6.79 Scraper Ring

329 6.73 O-Ring

330 6.72 Key Ring

331 6.62 Threaded Pin

332 6.70 Locking Pin

333 6.41 Hex Nut (4x)

340 6.68 O-Ring

341 6.67 O-Ring

342 6.71 Knotted Chain

365 6.63 Impact Grease Nipple

366 6.59 Compression Ring

367 6.61 Rotation lock

370 6.60 Parallel Key

372 6.30 Hex Nut

373 6.32 Bushing

375 6.33 Thrust Ball Bearing

380 6.36 Stem

381 6.66 Closure Screw

386 6.69 Position Indicator

387 6.55 Pipe Section

388 6.57 Bearing Flange

389 6.40 Flange - top

390 6.38 Flange - bottom

391 6.58 Threaded Bushing

393 6.42 Handwheel

397 6.56 Stud Bolt (4x)

399 6.34 Threaded Ring

391 375 388 365 341 340 366 393 370 381 266 267 332 342 330 329

333

264

265

389 263

387

397

380 386 373 399 331 367

256

390 263

262

372

Actuator

Table 20: Handwheel parts

Figure 17: Handwheel parts

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Actuator with Stroke Limitation

Spring-to-close or -open

Disassembly instruction of the stroke limitation subassembly

NOTICE

Use a rounded chisel and a hammer.

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened.

2. Loosen the hex nut (379) counter-clockwise.

3. Remove the plain washer (376), cover (381) and the pipe section (387).

4. Unlock the lock nuts (350, 2x) counter-clockwise.

5. Loosen the lock nut (256) counter-clockwise.

NOTICE

6. Lift off the stroke limitation assembly (333 - 389).

7. Unlock the lock nuts (350, 2x) counter-clockwise.

8. Store all stroke limitation-parts safely, lose no parts.

Limit disassembly only to necessary components.

Use a rounded chisel and a hammer.

14. Mount the lock nuts (350, 2x) clockwise.

15. Connect the actuator with the air supply. Control the air supply until the desired upper and lower stroke position is approached. Position the lock nuts (350) at the end positions and secure them.

16. Place the pipe section (387) onto the ﬂange (389).

17. Place the ﬂange (381) onto the pipe section (387).

18. Mount the washer (376) and hex nuts (379) and ﬁnger tighten.

19. Reassemble the yoke and coupling parts, perform three full strokes then check on the stroke indicator whether the desired positions are achieved.

20. Log the maintenance interval and the work performed.

21. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

9. For disassemble the actuator subassembly see pages 24 - 25.

Reassembly instruction of the stroke limitation subassembly

10. Lubricate the threads of the actuator and stroke limitation-parts with an appropriate lubricant.

11. Mount the lock nuts (350, 2x) clockwise.

12. Place the stroke limitation assembly (333 - 389) and the lock nut (256) onto the actuator.

13. Mount and tighten the lock nut (256) clockwise.

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

379

Item #

Part

WW EU

256 5.11 Lock Nut

333 6.108 Socket Head Screw (3x)

334 6.107 Plain Washer (3x)

350 6.109 Lock Nut (4x)

376 6.112 Plain Washer

377 6.103 Yoke Rod (3x)

378 6.106 Yoke Plate

379 6.113 Hex Nut

380 6.101 Stem

381 6.111 Cover

384 6.104 Hexagon Nut

385 6.105 Stud Bolt

387 6.110 Pipe Section

389 6.102 Flange

376

381

387

350

389 377 384 385 378 334 333

256

380

Actuator

Table 21: Stroke limitation parts

Figure 18: Stroke limitation parts

ﬂowserve.com

Actuator with NAMUR-yoke

Spring-to-close or -open

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Disassembly instruction of the yoke

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened (see also pages 14 - 15).

2. The hex bolt (420) and stroke scale (213) can remain on the yoke.

3. Unlock the lock nut (344) counter-clockwise.

4. Loosen the actuator coupling (249) and lock nut (344) clockwise.

5. We recommend you not to remove the actuator from the yoke. If this is indispensable mark the position, loosen the actuator locknut (256) clockwise and lift off the actuator.

NOTICE

Limit disassembly only to necessary components.

Use a rounded chisel and a hammer.

Reassembly instruction of the yoke

8. Lubricate the threads of the actuator and stroke coupling-parts with an appropriate lubricant.

9. If necessary mount the actuator onto the yoke (201) put in line with the mark and tighten the actuator locknut (256) counter-clockwise. The vent plug shall be at a right angle to the yoke legs.

NOTICE

10. Screw in the lock nut (344) and the actuator coupling (249) - screw-in depth once thread diameter - counterclockwise and ﬁx it. Aligning the coupling parallel to the yoke.

11. Further reassembling steps are only possible with the valve (see page 39).

Use a rounded chisel and a hammer.

6. Store all coupling and yoke-parts safely, lose no parts.

7. For disassemble the attachments see pages 26 - 33 and for actuator subassembly see pages 18 - 25.

Item #

WW EU

201 5.9 Yoke

213 5.7 Stroke Scale

216 5.6 Stroke Indicator

240 5.5 Socket Head Screw (2x)

249 5.3 Actuator Coupling

256 5.11 Actuator Locknut

344 5.4 Lock Nut

345 5.1 Valve Coupling

420 5.8 Hex Bolt

Depending on the valve series (see page 7).

Part

213

420

Actuator

201

256

344

240

249

216

345

Table 22: Actuator parts

Figure 19: Actuator parts

Actuator with MULTI-yoke

Spring-to-close or -open

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Disassembly instruction of the yoke

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened (see also pages 14 - 15).

2. Remove the hex bolt (420), washer (333) and the stroke scale (213).

3. Remove the socket head screw (214), washer (334) and the stroke indicator (216).

4. Unlock the lock nut (344) counter-clockwise.

5. Loosen the actuator coupling (249) and lock nut (344) clockwise.

6. We recommend you not to remove the actuator from the yoke. If this is indispensable mark the position, loosen the actuator locknut (256) clockwise and lift off the actuator and O-ring (271).

Limit disassembly only to necessary components.

7. Store all coupling and yoke-parts safely, lose no parts.

8. For disassemble the attachments see pages 26 - 33 and for actuator subassembly see pages 18 - 25.

Reassembly instruction of the yoke

9. Lubricate the threads of the actuator and stroke coupling-parts with an appropriate lubricant.

10. If necessary mount new O-rings (278, 271) and the actuator onto the yoke (201) put in line with the mark and tighten the actuator locknut (256) counter-clockwise. The vent plug shall be at a right angle to the yoke legs.

NOTICE

11. Screw in the lock nut (344) and the actuator coupling (249) - screw-in depth once thread diameter - counterclockwise and ﬁx it. Aligning the coupling parallel to the yoke.

Use a rounded chisel and a hammer.

NOTICE

Item #

WW EU

201 5.9 Yoke

213 5.7 Stroke Scale

214 5.20 Socket Head Screw

216 5.6 Stroke Indicator

240 5.5 Socket Head Screw (2x)

249 5.3 Actuator Coupling

256 5.11 Actuator Locknut

271 6.50 O-Ring

278 6.51 O-Ring

333 5.12 Washer (4x)

334 5.19 Washer

344 5.4 Lock Nut

345 5.1 Valve Coupling

420 5.8 Hex Bolt (4x)

Depending on the valve series (see page 7).

Use a rounded chisel and a hammer.

Part

12. Further reassembling steps are only possible with the valve (see page 39).

Actuator

213

333

420

201

214

334

216

278

271

256

240

344

249

345

Table 23: Actuator parts

Figure 20: Actuator parts

ﬂowserve.com

Actuator with IAS-yoke

Spring-to-close or -open

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Disassembly instruction of the yoke

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened (see also pages 14 - 15).

2. Remove the socket head screw (214) and the stroke indicator (216).

3. Unlock the lock nut (344) counter-clockwise.

4. Loosen the actuator coupling (249) and lock nut (344) clockwise.

5. We recommend you not to remove the actuator from the yoke. If this is indispensable mark the position, loosen the actuator locknut (256) clockwise and lift off the actuator and O-ring (271).

NOTICE

Limit disassembly only to necessary components.

Use a rounded chisel and a hammer.

Reassembly instruction of the yoke

8. Lubricate the threads of the actuator and stroke coupling-parts with an appropriate lubricant.

9. If necessary mount new O-rings (278, 271) and the actuator onto the yoke (201) put in line with the mark and tighten the actuator locknut (256) counter-clockwise. The vent plug shall be at a right angle to the yoke legs.

NOTICE

10. Screw in the lock nut (344) and the actuator coupling (249) - screw-in depth once thread diameter - counterclockwise and ﬁx it. Aligning the coupling parallel to the yoke.

11. Further reassembling steps are only possible with the valve (see page 39).

Use a rounded chisel and a hammer.

6. Store all coupling and yoke-parts safely, lose no parts.

7. For disassemble the attachments see pages 26 - 33 and for actuator subassembly see pages 18 - 25.

Item #

WW EU

201 5.9 Yoke

213 5.7 Stroke Scale

214 5.20 Socket Head Screw

216 5.6 Stroke Indicator

240 5.5 Socket Head Screw (2x)

249 5.3 Actuator Coupling

256 5.11 Actuator Locknut

271 6.50 O-Ring

278 6.51 O-Ring

344 5.4 Lock Nut

345 5.1 Valve Coupling

420 5.8 Hex Bolt

Depending on the valve series (see page 7).

Part

201 213 420

214

216

Actuator

278

271

256

240

344

249

345

Table 24: Actuator parts

Figure 21: Actuator parts

Actuator with Handwheel - side

> Type 253 < Spring-to-close or -open

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Disassembly instruction of the yoke

NOTICE

1. Loosen the hex bolts (150) and washers (140), remove the handwheel-side (393) and store all parts safely.

1. Fix the actuator on the assembly table, if this is not already happened (see also pages 14 - 15).

2. Unlock the lock nut (344) counter-clockwise.

3. Loosen the actuator coupling (249) and lock nut (344) clockwise.

4. We recommend you not to remove the actuator from the yoke. If this is indispensable mark the position, loosen the actuator locknut (256) clockwise and lift off the actuator and O-ring (271).

NOTICE

5. Store all coupling and yoke-parts safely, lose no parts.

Limit disassembly only to necessary components.

Use a rounded chisel and a hammer.

6. For disassemble the attachments see pages 26 - 33 and for actuator subassembly see pages 18 - 25.

Reassembly instruction of the yoke

7. Lubricate the threads of the actuator and stroke coupling-parts with an appropriate lubricant.

8. If necessary mount new O-rings (278, 271) and the actuator onto the yoke (201) put in line with the mark and tighten the actuator locknut (256) counter-clockwise. The vent plug shall be at left rear to the yoke legs.

NOTICE

9. Screw in the lock nut (344) and the actuator coupling (249) - screw-in depth once thread diameter - counterclockwise and ﬁx it. Aligning the coupling parallel to the yoke.

10. Further reassembling steps are only possible with the valve (see page 39).

Use a rounded chisel and a hammer.

Item #

Part

WW EU

140 6.91 Washer (4x)

150 6.92 Hex Bolt (4x)

201 5.9 Yoke

213 5.7 Stroke Scale

216 5.6 Stroke Indicator

240 5.5 Socket Head Screw (2x)

249 5.3 Actuator Coupling

256 5.11 Actuator Locknut

271 6.50 O-Ring

278 6.51 O-Ring

344 5.4 Lock Nut

345 5.1 Valve Coupling

393 6.90 Lateral Handwheel (Unit)

420 5.8 Hex Bolt

393

150

140

213

420

249

Actuator

278

271

201

256

240

344

345

216

Table 25: Actuator parts

Figure 22: Actuator parts

ﬂowserve.com

Actuator with Handwheel - side

> Type 503, 701 < Spring-to-close or -open

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Disassembly instruction of the yoke

NOTICE

1. Loosen the hex bolts (150) and washers (140), remove the handwheel-side (393).

2. Loosen the socket head screw (214) and stroke indicator (216) and store all parts safely.

3. Disassemble the actuator and ﬁx the yoke on the assembly table (see pages 14 - 15).

4. Unlock the lock nut (344) counter-clockwise.

5. Loosen the actuator coupling (249) and lock nut (344) clockwise.

6. We recommend you not to remove the actuator from the yoke. If this is indispensable mark the position, loosen the actuator locknut (256) clockwise and lift off the actuator and O-ring (271).

NOTICE

Limit disassembly only to necessary components.

Use a rounded chisel and a hammer.

7. Store all coupling and yoke-parts safely, lose no parts.

8. For disassemble the attachments see pages 26 - 33 and for actuator subassembly see pages 18 - 25.

Reassembly instruction of the yoke

9. Lubricate the threads of the actuator and stroke coupling-parts with an appropriate lubricant.

NOTICE

11. Screw in the lock nut (344) and the actuator coupling (249) - screw-in depth once thread diameter - counterclockwise and ﬁx it. Aligning the coupling parallel to the yoke.

12. Further reassembling steps are only possible with the valve (see page 39).

Use a rounded chisel and a hammer.

Item #

Part

WW EU

140 6.91 Washer (4x)

150 6.92 Hex Bolt (4x)

201 5.9 Yoke

213 5.7 Stroke Scale

214 5.20 Socket Head Screw (2x)

216 5.6 Stroke Indicator

240 5.5 Socket Head Screw (2x)

249 5.3 Actuator Coupling

256 5.11 Actuator Locknut

271 6.50 O-Ring

278 6.51 O-Ring

344 5.4 Lock Nut

345 5.1 Valve Coupling

393 6.90 Lateral Handwheel (Unit)

420 5.8 Hex Bolt

393

150

140

213

420

249

345

Actuator

278

271

201

256

240

344

214

216

Table 26: Actuator parts

Figure 23: Actuator parts

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Pneumatic Actuator - Type 1502

• Type 253, 503, 701 see page 17

• Type 3002 see page 57

Single chamber actuator without attachments Single chamber actuator with attachments

Spring-to-close Spring-to-open Spring-to-close Spring-to-open

Adjustable Limit Stop - max. positioning force 39 kN

see pages 48 - 49

see pages 40 - 41 see pages 42 - 43 see pages 44 - 45 see pages 46 - 47

Central-mounted handwheel

without

see pages 50 - 53

NAMUR-yoke, with double mounting pads Side-mounted handwheel - maximal positioning force 39 kN

see page 54 see page 55

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Actuator without attachments

Spring-to-close

Disassembly instruction of the actuator subassembly

NOTICE

1. Fix the actuator on the assembly table

2. Disassemble the coupling parts and yoke (see page 54).

3. Disassemble the hexagon bolts (335), plain washers (337) and hexagon nuts (351).

4. Pull off the protection sleeve (339).

springs inside.

5. Lubricate the threads and loosen the long hexagon bolts (336), plain washers (337) and hexagon nuts (351) uniformly in a clockwise sequence as the springs expand.

NOTICE

8.8 or higher, as well as washers and nuts.

6. Lift off the diaphragm casing (203, 258), distance plate (231) and spring adjusting plate (326).

7. Remove the actuator springs (229).

Limit disassembly only to necessary components.

(see page 15)

WARNING

We recommend using threaded bolts meeting standards from ISO 898-1,

Risk of injury by jumping out parts ! Pre-loaded

Reassembly instruction of the actuator subassembly

NOTICE

13. Lubricate the new O-ring (275), new scraper ring (273) with an appropriate lubricant and install into the guide bushing (253).

14. Lubricate the new O-ring (272) with an appropriate lubricant.

15. Lower the thrust washer (255), O-ring (272), dia-

onto the stem (211).

16. Lubricate the thread of the stem (211) with an appropriate lubricant and install and ﬁnger tighten the special nut (348).

NOTICE

of the Positioning Template. Mark the position.

17. Turn the special nut (348) clockwise using a suitable torque wrench.

18. Loosen and remove the diaphragm-stem unit (211-

349) from the Special Tool. Lubricate the actuator stem with an appropriate lubricant.

19. Carefully lower the diaphragm-stem unit (211- 349) into the diaphragm casing.

Always replace parts showing wear with new parts.

phragm (225), diaphragm plate (227), disk (220), spacer bushing (228), distance bushing (374) and lock washer (349)

The diaphragm plate should be positioned to the diaphragm with the aid

8. Carefully remove the diaphragm-stem unit (211 - 374).

9. Remove the scraper ring (273) and O-ring (275).

10. Secure the diaphragm-stem unit into the Special Tool.

11. Loosen the special nut (348) counterclockwise and remove the lock washer (349), distance bushing (374), spacer bushing (228), disk (220), diaphragm plate (227), diaphragm (225), O-ring (272) and thrust washer (255).

12. Check stressed surface areas for damage such as scoring and deformities. Use a brass brush or similar tool to clean bolting. Check for corrosion or any other damage.

NOTICE

Mark align.

20. Install and align the actuator springs (229).

21. Install and position the spring adjusting plate (326) such that the imprint on the plate and air connection are opposite of each other.

22. Install the distance plate (231) and diaphragm casing (203), position the casing allowing the air connections to be opposite of each other.

23. Lubricate the threats of the long hexagon bolts (336) with an appropriate lubricant then compress the springs uniformly in a clockwise sequence by tightening the long hexagon bolts (336), plain washers (337) and hexagon nuts (351). Alternative method see NOTICE step 5.

Position the diaphragm-stem unit such that the air connection and the

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

24. Install the short hexagon bolts (335) and hexagon nuts (351).

25. Tighten the nuts (351) using a crosswise pattern in four steps.

26. Install the protection sleeve (339).

27. Reassemble the yoke and coupling parts, perform three full strokes then check the tightening of the casing bolting.

28. Log the maintenance interval and the work performed.

Item #

WW EU

202 6.1 Diaphragm Casing

203 6.2 Diaphragm Casing

211 6.12 Stem

220 6.14 Disk

225 6.16 Diaphragm

227 6.15 Diaphragm Plate

228 6.13 Spacer Bushing

229 6.21 Actuator Spring

231 6.22 Distance Plate

253 6.8 Guide Bushing

254 6.80 Plain Bearing

255 6.18 Thrust Washer

258 6.26 Vent Plug

272 6.17 O-Ring

273 6.11 Scraper Ring

275 6.10 O-Ring

276 6.9 O-Ring

279 6.46 O-Ring

326 6.23 Spring Adjusting Plate

334 6.45 Hexagon Bolt (6x)

335 6.3.1 Hexagon Bolt - short (20x)

336 6.3.2 Hexagon Bolt - long (4x)

337 6.5 Plain Washer

339 6.25 Protection Sleeve (4x)

348 6.20 Special Nut

349 6.19 Lock Washer

351 6.4 Hexagon Nut

374 6.47 Distance Bushing

Alternatively, hex head assembled screws with captive ﬂat washers are used for this application.

Part

Table 27: Actuator parts Figure 24: Actuator parts

29. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

336

335

337

203 258

231

348

326

349

229

374

228

220

227

225

202 253 254

272

276

279 334

255

351

211

339

275

273

ﬂowserve.com

Actuator without attachments

Spring-to-open

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Disassembly instruction of the actuator subassembly

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened.

2. Disassemble the coupling parts and yoke (see page

54).

3. Disassemble the hexagon bolts (335), plain washers (337) and hexagon nuts (351).

4. Pull off the protection sleeve (339).

springs inside.

5. Lubricate the threads and loosen the long hexagon bolts (336), plain washers (337) and hexagon nuts (351) uniformly in a clockwise sequence as the springs expand.

NOTICE

8.8 or higher, as well as washers and nuts.

6. Lift off the diaphragm casing (203, 258).

7. Carefully remove the diaphragm-stem unit (211 - 374).

8. Remove the actuator springs (229).

9. Remove the spring adjusting plate (326) and distance plate (231).

10. Remove the scraper ring (273) and O-ring (275).

11. Secure the diaphragm-stem unit into the Special Tool.

Limit disassembly only to necessary components.

WARNING

We recommend using threaded bolts meeting standards from ISO 898-1,

Risk of injury by jumping out parts ! Pre-loaded

Reassembly instruction of the actuator subassembly

NOTICE

14. Lubricate the new O-ring (275), new scraper ring (273) with an appropriate lubricant and install into the guide bushing (253).

15. Lubricate the new O-ring (272) with an appropriate lubricant.

16. Lower the distance bushing (374), spacer bushing

onto the stem (211).

17. Lubricate the thread of the stem (211) with an appropriate lubricant and install and ﬁnger tighten the special nut (348).

18. Turn the special nut (348) clockwise using a suitable torque wrench.

19. Loosen and remove the diaphragm-stem unit (211-

349) from the Special Tool. Lubricate the actuator stem with an appropriate lubricant.

20. Install and position the distance plate (231), spring adjusting plate (326) allowing the air connections to be opposite of each other.

21. Install and align the actuator springs (229).

22. Carefully lower the diaphragm-stem unit (211- 349) into the diaphragm casing.

23. Install the diaphragm casing (203), positioning the casing such that the air connections are aligned.

Always replace parts showing wear with new parts.

(228), disk (220), diaphragm plate (227), diaphragm (225), O-ring (272), thrust washer (255), lock washer (349)

12. Loosen the special nut (348) counterclockwise and remove the lock washer (349), thrust washer (255), O-ring (272), diaphragm (225), diaphragm plate (227), disk (220), spacer bushing (228) and distance bushing (231).

13. Check stressed surface areas for damage such as scoring and deformities. Use a brass brush or similar tool to clean bolting. Check for corrosion or any other damage.

25. Install the short hexagon bolts (335), hexagon nuts (351).

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

26. Tighten the nuts (351) using a crosswise pattern in four steps.

27. Install the protection sleeve (339).

28. Reassemble the yoke and coupling parts,

perform three full strokes then check the tightening of the casing bolting.

29. Log the maintenance interval and the work performed.

Item #

WW EU

202 6.1 Diaphragm Casing

203 6.2 Diaphragm Casing

211 6.12 Stem

220 6.14 Disk

225 6.16 Diaphragm

227 6.15 Diaphragm Plate

228 6.13 Spacer Bushing

229 6.21 Actuator Spring

231 6.22 Distance Plate

253 6.8 Guide Bushing

254 6.80 Plain Bearing

255 6.18 Thrust Washer

258 6.26 Vent Plug

272 6.17 O-Ring

273 6.11 Scraper Ring

275 6.10 O-Ring

276 6.9 O-Ring

279 6.46 O-Ring (6x)

326 6.23 Spring Adjusting Plate

334 6.45 Hexagon Bolt

335 6.3.1 Hexagon Bolt - short (20x)

336 6.3.2 Hexagon Bolt - long (4x)

337 6.5 Plain Washer (24x)

339 6.25 Protection Sleeve

348 6.20 Special Nut

349 6.19 Lock Washer

351 6.4 Hexagon Nut

374 6.47 Distance Bushing

Alternatively, hex head assembled screws with captive ﬂat washers are used for this application.

Part

Table 28: Actuator parts Figure 25: Actuator parts

30. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

336

335

348

349

337

203

272

255

225

227

220

228

374

202

211

253 258 254

229

276

279 334

326

351

231

339

275

273

ﬂowserve.com

Actuator with attachments

Spring-to-close

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Disassembly instruction of the actuator subassembly

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened.

2. Disassemble the coupling parts and yoke (see page

54).

3. Disassemble the hexagon bolts (335), plain washers (337) and hexagon nuts (351).

4. Pull off the protection sleeve (339).

springs inside.

5. Lubricate the threads and loosen the long hexagon bolts (336), plain washers (337) and hexagon nuts (351) uniformly in a clockwise sequence as the springs expand.

NOTICE

8.8 or higher, as well as washers and nuts.

Limit disassembly only to necessary components.

WARNING

We recommend using threaded bolts meeting standards from ISO 898-1,

Risk of injury by jumping out parts ! Pre-loaded

Reassembly instruction of the actuator subassembly

NOTICE

13. Lubricate the new O-rings (275), new scraper rings (273) with an appropriate lubricant and install into the guide bushings (253).

14. Lubricate the new O-ring (272) with an appropriate lubricant.

15. Lower the thrust washer (255), O-ring (272), dia-

onto the stem (211).

16. Lubricate the thread of the stem (211) with an appropriate lubricant and install and ﬁnger tighten the stem (348).

NOTICE

of the Positioning Template. Mark the position.

17. Turn clockwise the stem (348) using a suitable torque wrench.

Always replace parts showing wear with new parts.

phragm (225), diaphragm plate (227), disk (220), spacer bushing (228), distance bushing (374) and lock washer (349)

The diaphragm plate should be positioned to the diaphragm with the aid

6. Lift off the diaphragm casing (202 - 389), distance plate (231) and spring adjusting plate (326).

7. Remove the actuator springs (229).

8. Carefully pull out the diaphragm-stem unit (211 - 374).

9. Remove the scraper rings (273) and O-rings (275).

10. Secure the diaphragm-stem unit into the Special Tool.

11. Loosen the stem (348) counterclockwise and remove the lock washer (349), distance bushing (374), spacer bushing (228), disk (220), diaphragm plate (227), diaphragm (225), O-ring (272) and thrust washer (255).

12. Check stressed surface areas for damage such as scoring and deformities. Use a brass brush or similar tool to clean bolting. Check for corrosion or any other damage.

18. Loosen and remove the diaphragm-stem unit (211-

374) from the Special Tool. Lubricate the actuator stem with an appropriate lubricant.

19. Carefully lower the diaphragm-stem unit (211- 374) into the diaphragm casing.

NOTICE

Mark align.

20. Install and align the actuator springs (229).

21. Install and position the spring adjusting plate (326) such that the imprint on the plate and air connection are opposite of each other.

22. Install the distance plate (231) and diaphragm casing (203), position the casing allowing the air connections to be opposite of each other.

23. Lubricate the threats of the long hexagon bolts (336)

Position the diaphragm-stem unit such that the air connection and the

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

with an appropriate lubricant then compress the springs uniformly in a clockwise sequence by tightening the long hexagon bolts (336), plain washers (337) and hexagon nuts (351). Alternative method see NOTICE step 5.

24. Install the short hexagon bolts (335) and hexagon nuts (351).

25. Tighten the nuts (351) using a crosswise pattern in four steps.

26. Install the protection sleeve (339).

Item #

WW EU

202 6.1 Diaphragm Casing (2x)

209 6.6 Ring Nut

211 6.12 Stem

220 6.14 Disk

225 6.16 Diaphragm

227 6.15 Diaphragm Plate

228 6.13 Spacer Bushing

229 6.21 Actuator Spring

231 6.22 Distance Plate

253 6.8 Guide Bushing

254 6.80 Plain Bearing (2x)

255 6.18 Thrust Washer

258 6.26 Vent Plug

272 6.17 O-Ring

273 6.11 Scraper Ring (2x)

275 6.10 O-Ring (2x)

276 6.9 O-Ring (2x)

279 6.46 O-Ring (12x)

326 6.23 Spring Adjusting Plate

334 6.45 Hexagon Bolt (12x)

335 6.3.1 Hexagon Bolt - short (20x)

336 6.3.2 Hexagon Bolt - long (4x)

337 6.5 Plain Washer (24x)

339 6.25 Protection Sleeve

348 6.20 Stem

349 6.19 Lock Washer

351 6.4 Hexagon Nut (24x)

374 6.47 Distance Bushing

389 6.83 Guide Bushing

Alternatively, hex head assembled screws with captive ﬂat washers are used for this application.

Part

Table 29: Actuator parts Figure 26: Actuator parts

27. Reassemble the yoke and coupling parts, perform three full strokes then check the tightening of the casing bolting.

28. Log the maintenance interval and the work performed.

29. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

336

335

337

202 389 254 258 276

279

348

349

374

228

334

231

326

229

220

227

255

202 253 254

272

276

279 334

255

351

211

339

275

273

ﬂowserve.com

Actuator without attachments

Spring-to-open

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Disassembly instruction of the actuator subassembly

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened.

2. Disassemble the coupling parts and yoke (see page

54).

3. Disassemble the hexagon bolts (335), plain washers (337) and hexagon nuts (351).

4. Pull off the protection sleeve (339).

springs inside.

5. Lubricate the threads and loosen the long hexagon bolts (336), plain washers (337) and hexagon nuts (351) uniformly in a clockwise sequence as the springs expand.

Limit disassembly only to necessary components.

WARNING

Risk of injury by jumping out parts ! Pre-loaded

Reassembly instruction of the actuator subassembly

NOTICE

14. Lubricate the new O-rings (275), new scraper rings (273) with an appropriate lubricant and install into the guide bushings (253).

15. Lubricate the new O-ring (272) with an appropriate lubricant.

16. Lower the distance bushing (374), spacer bushing

onto the stem (211).

17. Lubricate the thread of the stem (211) with an appropriate lubricant and install and ﬁnger tighten the stem (348).

18. Turn clockwise the stem (348) using a suitable torque wrench.

Always replace parts showing wear with new parts.

(228), disk (220), diaphragm plate (227), diaphragm (225), O-ring (272), thrust washer (255) and lock washer (349)

NOTICE

8.8 or higher, as well as washers and nuts.

6. Lift off the diaphragm casing (202 - 389).

7. Carefully pull out the diaphragm-stem unit (211 - 374).

8. Remove the actuator springs (229).

9. Remove the spring adjusting plate (326) and distance plate (231).

10. Remove the scraper rings (273) and O-rings (275).

11. Secure the diaphragm-stem unit into the Special Tool.

12. Loosen the stem (348) counterclockwise and remove the lock washer (349), thrust washer (255), O-ring (272), diaphragm (225), diaphragm plate (227), disk (220), spacer bushing (228) and distance bushing (231).

13. Check stressed surface areas for damage such as scoring and deformities. Use a brass brush or similar tool to clean bolting. Check for corrosion or any other damage.

We recommend using threaded bolts meeting standards from ISO 898-1,

19. Loosen and remove the diaphragm-stem unit (211-

374) from the Special Tool. Lubricate the actuator stem with an appropriate lubricant.

20. Install and position the distance plate (231), spring adjusting plate (326) allowing the air connections to be opposite of each other.

21. Install and align the actuator springs (229).

22. Carefully lower the diaphragm-stem unit (211- 374) into the diaphragm casing.

23. Install the diaphragm casing (203), positioning the casing such that the air connections are aligned.

25. Install the short hexagon bolts (335), hexagon nuts (351).

26. Tighten the nuts (351) using a crosswise pattern in four steps.

27. Install the protection sleeve (339).

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

28. Reassemble the yoke and coupling parts,

perform three full strokes then check the tightening of the casing bolting.

29. Log the maintenance interval and the work performed.

30. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

Item #

WW EU

202 6.1 Diaphragm Casing (2x)

211 6.12 Stem

220 6.14 Disk

225 6.16 Diaphragm

227 6.15 Diaphragm Plate

228 6.13 Spacer Bushing

229 6.21 Actuator Spring

231 6.22 Distance Plate

253 6.8 Guide Bushing

254 6.80 Plain Bearing

255 6.18 Thrust Washer

258 6.26 Vent Plug

272 6.17 O-Ring

273 6.11 Scraper Ring (2x)

275 6.10 O-Ring (2x)

276 6.9 O-Ring (2x)

279 6.46 O-Ring (12x)

326 6.23 Spring Adjusting Plate

334 6.45 Hexagon Bolt (12x)

335 6.3.1 Hexagon Bolt - short (20x)

336 6.3.2 Hexagon Bolt - long (4x)

337 6.5 Plain Washer (24x)

339 6.25 Protection Sleeve (4x)

348 6.20 Stem

349 6.19 Lock Washer

351 6.4 Hexagon Nut (24x)

374 6.47 Distance Bushing

389 6.83 Guide Bushing

Alternatively, hex head assembled screws with captive ﬂat washers are used for this application.

Part

Table 30: Actuator parts Figure 27: Actuator parts

348

349

272

225

227

220

228

374

211

229

326

231

255

336

335

337

202 389 254 276

279 334

202 253 254 258 276

279 334

351

339

275

273

ﬂowserve.com

Actuator with Stroke Limitation

Spring-to-close or -open

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Disassembly instruction of the stroke limitation subassembly

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened.

2. Loosen the hex nut (379) counter-clockwise.

3. Remove the plain washer (376), cover (381) and the pipe section (387).

4. Unlock the lock nuts (350, 2x) counter-clockwise.

5. Loosen the socket head screws (333) counter-clockwise.

6. Lift off the socket head screws (333), plain washers (334), yoke plate (378) and yoke rods (377).

7. Loosen the stud bolt (385) counter-clockwise.

Limit disassembly only to necessary components.

15. Lower the yoke plate (378) onto the stud bolt (385) on the yoke rods (377).

16. Install the plain washers (334) and socket head screws (333) and ﬁnger tighten it clockwise.

17. Tighten the socket head screws (333) using a crosswise pattern clockwise.

18. Mount the lock nuts (350, 2x) clockwise.

19. Connect the actuator with the air supply. Control the air supply until the desired upper and lower stroke position is approached. Position the lock nuts (350) at the end positions and secure them.

20. Place the pipe section (387) onto the upper guide bushing.

21. Place the ﬂange (381) onto the pipe section (387).

22. Mount the washer (376) and hex nuts (379) and ﬁnger-thigten.

8. Unlock the lock nuts (350, 2x) counter-clockwise.

9. Store all stroke limitation-parts safely, lose no parts.

10. For disassemble the actuator subassembly see pages 46 - 49.

Reassembly instruction of the stroke limitation subassembly

11. Lubricate the threads of the actuator and stroke limitation-parts with an appropriate lubricant.

12. Mount the lock nuts (350, 2x) clockwise.

13. Mount the stud bolt (385) onto the actuator.

14. Arrange the yoke rods (377, 3x) onto the upper guide bushing.

23. Perform 3 full strokes and check on the stroke indicator whether the desired positions are achieved.

24. Log the maintenance interval and the work performed.

25. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

379

376

381

387

Item #

Part

WW EU

333 6.108 Socket Head Screw (3x)

334 6.107 Plain Washer (3x)

350 6.109 Lock Nut (4x)

376 6.112 Plain Washer

377 6.103 Yoke Rod (3x)

378 6.106 Yoke Plate

379 6.113 Hex Nut

380 6.101 Stem

381 6.111 Cover

385 6.105 Stud Bolt

387 6.110 Pipe Section

350

333

334

378

377

385

380

Actuator

Table 31: Stroke limitation parts Figure 28: Stroke limitation parts

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Actuator with Handwheel - central

Spring-to-close

Disassembly instruction of the handwheel subassembly

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened.

2. Disassemble the coupling parts (see page 54).

3. Loosen the hex socket set screw (370) counter-clockwise.

NOTICE

4. Remove the handwheel (372).

5. Loosen the slotted set screws (405, 3x) counter-clockwise and push the cover tube (352) down.

6. Loosen the lock nut (256) clockwise and lift off the actuator.

NOTICE

7. Unlock the hex nut (253) counter-clockwise.

Limit disassembly only to necessary components.

The handwheel must be in the neutral position.

Use a rounded chisel and a hammer.

Reassembly instruction of the handwheel subassembly

NOTICE

12. Lubricate the threads of the actuator and handwheelparts with an appropriate lubricant.

13. If the stem end stop (350) has been removed, reinstall it ﬁrst. Mount it clockwise onto the stem extension (221) and secure it with the slotted set screw (405).

14. Mount the lock nut (353) counter-clockwise onto the actuator stem.

15. Mount the stem extension unit (221, 350, 405) counter-clockwise onto the actuator stem in such a way that the correct thread screwing depths are given, lock the lock nut (353) clockwise.

16. Arrange the lock nut (256) onto the cover tube (352).

17. Carefully place the actuator assembly onto the handwheel.

NOTICE

Always replace parts showing wear with new parts.

The handwheel must be in the neutral position.

8. Unscrew the stem extension unit (221, 350, 405) clockwise.

9. We recommend you not to remove the stem end stop from the stem extension. If this is indispensable loosen the slotted set screw (405) counter-clockwise and unscrew the stem end stop (350) counter-clockwise.

10. Store all handwheel-parts safely, lose no parts.

11. For disassemble the actuator subassembly see pages 42 - 49.

18. Mount and tighten the lock nut (256) counter-clockwise.

NOTICE

19. Push the cover tube(352) upwards until it stops and lock the slotted set screws (405, 3x) clockwise.

20. Place the handwheel (372) onto the transmission shaft of the bevel gear and secure it with the hex socket set screw (370) clockwise.

21. Assemble the coupling parts (see page 54).

Use a rounded chisel and a hammer.

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

372

22. Connect the actuator with the air supply, perform 3 full strokes and check the free movement.

NOTICE

move freely without hitting in the end

positions.

23. Log the maintenance interval and the work performed.

24. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

The stem extension must be able to

Actuator

353

350

405

Item #

Part

WW EU

221 6.120 Stem Extension

256 5.11 Lock Nut

350 6.122 Stem End Stop

352 6.121 Cover Tube

353 6.124 Lock Nut

370 6.96 Hex Socket Set Screw

372 6.42 Central Handwheel (Unit)

405 6.123 Slotted Set Screw (4x)

Table 32: Handwheel “central“ parts Figure 29: Handwheel “central“ parts

352

405

221

256

370

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Actuator with Handwheel - central

Spring-to-open

Disassembly instruction of the handwheel subassembly

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened.

2. Disassemble the coupling parts (see page 54).

3. Loosen the hex socket set screw (370) counter-clockwise.

NOTICE

4. Remove the handwheel (372).

spring load. Never disconnect the air supply during next steps, the stem will retract very quickly.

Limit disassembly only to necessary components.

The handwheel must be in the neutral position.

WARNING

Crushing hazard ! The actuator stem is under

Reassembly instruction of the handwheel subassembly

NOTICE

14. Lubricate the threads of the actuator and handwheelparts with an appropriate lubricant.

15. Mount the lock nut (353) counter-clockwise onto the actuator stem.

16. Mount the stem extension (221) counter-clockwise onto the actuator stem in such a way that the correct thread screwing depths are given, lock the lock nut (353) clockwise.

17. Arrange the lock nut (256) onto the cover tube (352).

18. Carefully place the actuator assembly onto the handwheel.

NOTICE

Always replace parts showing wear with new parts.

The handwheel must be in the neutral position.

5. Connect the air supply to the actuator and move the actuator stem into extended position.

6. Loosen the slotted set screw (405) and unscrew the stem end stop (350) counter-clockwise.

7. Disconnect the air supply, the actuator stem will move into retracted position.

8. Loosen the slotted set screws (405, 3x) counter-clockwise and push the cover tube (352) down.

9. Loosen the lock nut (256) clockwise and lift off the actuator.

NOTICE

10. Unlock the hex nut (353) counter-clockwise.

11. Unscrew the stem extension unit (221) clockwise.

12. Store all handwheel-parts safely, lose no parts.

13. For disassemble the actuator subassembly see pages 42 - 49.

Use a rounded chisel and a hammer.

19. Mount and tighten the lock nut (256) counter-clockwise.

NOTICE

20. Push the cover tube(352) upwards until it stops and lock the slotted set screws (405, 3x) clockwise.

WARNING

spring load. Never disconnect the air supply during next steps, the stem will retract very quickly.

21. Connect the air supply to the actuator and move the actuator stem into extended position.

22. Mount the stem end stop (350) and lock the slotted set screw (405) clockwise.

23. Disconnect the air supply, the actuator stem will move into retracted position.

24. Place the handwheel (372) onto the transmission shaft of the bevel gear and secure it with the hex socket set

Use a rounded chisel and a hammer.

Crushing hazard ! The actuator stem is under

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

screw (370) clockwise.

25. Assemble the coupling parts (see page 54).

26. Connect the actuator with the air supply, perform 3 full strokes and check the free movement.

NOTICE

move freely without hitting in the end

positions.

27. Log the maintenance interval and the work performed.

28. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

The stem extension must be able to

Actuator

353

Item #

Part

WW EU

221 6.120 Stem Extension

256 5.11 Lock Nut

350 6.122 Stem End Stop

352 6.121 Cover Tube

353 6.124 Lock Nut

370 6.96 Hex Socket Set Screw

372 6.42 Central Handwheel (Unit)

405 6.123 Slotted Set Screw (4x)

Table 33: Handwheel “central“ parts Figure 30: Handwheel “central“ parts

352

405

350

405

221

256

370

372

ﬂowserve.com

Actuator with yoke

Spring-to-close or -open

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Disassembly instruction of the yoke

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened, see also page 14 - 15.

2. Remove the socket head screws (214), plain washers (334) and the stroke indicator (216).

3. Unlock the lock nut (344) counter-clockwise.

4. Loosen the actuator coupling (249) and lock nut (344) clockwise.

5. We recommend you not to remove the actuator from the yoke. If this is indispensable mark the position, loosen the actuator locknut (256) clockwise and lift off the actuator.

NOTICE

Limit disassembly only to necessary components.

Use a rounded chisel and a hammer.

Reassembly instruction of the yoke

8. Lubricate the threads of the actuator and stroke coupling-parts with an appropriate lubricant.

9. If necessary mount actuator onto the yoke (201) put in line with the mark and tighten the actuator locknut (256) counter-clockwise. The vent plug shall be at a right angle to the yoke legs (see ﬁgure 31).

NOTICE

10. Screw in the lock nut (344) and the actuator coupling (249) - screw-in depth once thread diameter - counterclockwise and ﬁx it. Aligning the coupling parallel to the yoke.

11. Mount the stroke indicator (216), plain washers (334) and the socket head screws (214) clockwise.

12. Further reassembling steps are only possible with the valve (see page 39).

Use a rounded chisel and a hammer.

6. Store all coupling and yoke-parts safely, lose no parts.

7. For disassemble the attachments see pages 50 - 51 and for actuator subassembly see pages 42 - 49.

Item #

Part

WW EU

76 5.30 Adapter

107 5.32 Hex Bolt

118 5.31 Locking Plate

201 5.9 Yoke

213 5.7 Stroke Scale

214 5.20 Socket Head Screw (2x)

216 5.6 Stroke Indicator

240 5.5 Socket Head Screw (4x)

249 5.3 Actuator Coupling

256 5.11 Actuator Locknut

333 5.12 Plain Washer

334 5.19 Plain Washer (2x)

344 5.4 Lock Nut

345 5.1 Valve Coupling

420 5.8 Hex Bolt

Table 34: Coupling parts Figure 31: Coupling parts

201 213 333 420

345

118

107

Actuator

256

344

240

249

216

334

214

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

107

334

Actuator with Handwheel - side

Spring-to-close or -open

Disassembly instruction of the yoke

NOTICE

1. Fix the actuator on the assembly table, if this is not already happened, see also page 14 - 15.

2. Loosen the hex bolts (150) and remove the handwheel-side (393).

3. Remove the socket head screws (214), plain washers (334) and the stroke indicator (216).

4. Unlock the lock nut (344) counter-clockwise.

5. Loosen the actuator coupling (249) and lock nut (344) clockwise.

6. We recommend you not to remove the actuator from the yoke. If this is indispensable mark the position, loosen the actuator locknut (256) clockwise and lift off the actuator.

Limit disassembly only to necessary components.

and for actuator subassembly see pages 42 - 49.

Reassembly instruction of the yoke

9. Lubricate the threads of the actuator and stroke coupling-parts with an appropriate lubricant.

10. If necessary mount actuator onto the yoke (201) put in line with the mark and tighten the actuator locknut (256) counter-clockwise. The vent plug shall be at a right angle to the yoke legs (see ﬁgure 32).

NOTICE

11. Screw in the lock nut (344) and the actuator coupling (249)

- screw-in depth once thread diameter - counter-clockwise and ﬁx it. Aligning the coupling parallel to the yoke.

12. Mount the stroke indicator (216), plain washers (334) and the socket head screws (214) clockwise.

13. Place the handwheel-side (393) mount the hex bolts (150) clockwise.

NOTICE

Use a rounded chisel and a hammer.

The handwheel must be in the neutral position.

NOTICE

7. Store all coupling and yoke-parts safely, lose no parts.

8. For disassemble the attachments see pages 50 - 51

Item #

WW EU

76 5.30 Adapter

107 5.32 Hex Bolt

118 5.31 Locking Plate

150 6.92 Hex Bolt (4x)

201 5.9 Yoke

213 5.7 Stroke Scale

214 5.20 Socket Head Screw (2x)

216 5.6 Stroke Indicator

240 5.5 Socket Head Screw (4x)

249 5.3 Actuator Coupling

256 5.11 Actuator Locknut

333 5.12 Plain Washer

334 5.19 Plain Washer (2x)

344 5.4 Lock Nut

345 5.1 Valve Coupling

393 6.95 Lateral Handwheel (Unit)

420 5.8 Hex Bolt

Use a rounded chisel and a hammer.

Part

Table 35: Coupling parts Figure 32: Coupling parts

14. Further reassembling steps are only possible with the valve (see page 39).

Actuator

393

150

201 213 333 420

345

118

256

344

240

249

216

214

ﬂowserve.com

Space for personal notes

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Pneumatic Actuator - Type 3002

• Type 253, 503, 701 see page 17

• Type 1502 see page 39

Single chamber actuator without attachments Single chamber actuator with attachments

Spring-to-close Spring-to-open Spring-to-close Spring-to-open

Adjustable Limit Stop - max. positioning force 39 kN

see pages 48 - 49

see pages 58 - 61 see pages 62 - 65 see pages 66 - 69 see pages 70 - 73

Central-mounted handwheel

without

see pages 50 - 53

NAMUR-yoke, with double mounting pads

see page 54

ﬂowserve.com

Actuator without attachments

Spring-to-close

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

WARNING

of the spring preload can be 60 000 N !

Danger of life in case of improper disassembly. The maximum sum

Disassembly instruction of the actuator subassembly

NOTICE

clamping tool are necessary. Limit disassembly only to necessary components.

1. Fix the actuator on the assembly table, if this is not already happened.

2. Disassemble the hexagon bolts (335), plain washers (337) and hexagon nuts (351) from the casing (203).

3. Pull off the protection sleeve (339).

springs inside.

For the disassembly, special tools such as a hydraulic spring press, stem wrench and stem

WARNING

Risk of injury by jumping out parts ! Pre-loaded

and O-ring (276).

10. Disassemble the hexagon bolts (335), plain washers (337) and hexagon nuts (351).

11. Pull off the protection sleeve (339).

WARNING

springs inside.

12. Lubricate the threads and loosen the long hexagon bolts (336), plain washers (337) and hexagon nuts (351) uniformly in a clockwise sequence as the springs expand.

NOTICE

quirement threaded rods in 8.8 quality (ISO 898-1) or higher as well as washers and nuts alternatively.

13. Lift off the diaphragm casing (202 - 373), distance plate (231) and spring adjusting plate (326).

14. Remove the actuator springs (229).

We recommend you to use a hydraulic spring press, as a minimum re-

Risk of injury by jumping out parts ! Pre-loaded

4. Lubricate the threads and loosen the long hexagon bolts (336), plain washers (337) and hexagon nuts (351) uniformly in a clockwise sequence as the springs expand.

NOTICE

quirement threaded rods in 8.8 quality (ISO 898-1) or higher as well as washers and nuts alternatively.

5. Lift off the diaphragm casing (203, 258), distance plate (231) and spring adjusting plate (326).

6. Remove the actuator springs (229).

7. Fix the stem (211) with the stem clamping tool against twisting.

8. Loosen the special nut (348) counterclockwise and remove the lock washer (349), distance bushing (374), spacer bushing (228), disk (220), diaphragm plate (227), diaphragm (225), O-ring (272) and thrust washer (255).

9. Loosen the hexagon bolts (334) counterclockwise and remove the O-rings (279), diaphragm casing (202)

We recommend you to use a hydraulic spring press, as a minimum re-

15. Remove the stem clamping tool.

16. Disassemble the coupling parts (see page 54).

17. Carefully pull out the diaphragm-stem unit (211 - 380).

18. Pull out the scraper ring (273) and O-rings (275, 2x).

19. Fix the diaphragm-stem unit into the stem clamping tool.

20. Loosen the stem extension (380) with the stem wrench counterclockwise and remove the lock washer (349), distance bushing (374), spacer bushing (228), disk (220), diaphragm plate (227), diaphragm (225), O-ring (272) and thrust washer (255).

21. Check stressed surface areas for damage such as scoring and deformities. Use a brass brush or similar tool to clean bolting. Check for corrosion or any other damage.

Reassembly instruction of the actuator subassembly

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

NOTICE

22. Lubricate the new O-ring (275) and new scraper ring (273) with an appropriate lubricant and install into the guide bushing (253).

23. Lubricate the new O-ring (275) with an appropriate lubricant and install into the guide bushing (373).

24. Fix the stem (211) into the stem clamping tool.

25. Lubricate the new O-ring (272) with an appropriate lubricant.

26. Lower the thrust washer (255), O-ring (272), dia-

onto the stem (211).

NOTICE

that of an internal stroke stop.

Always replace parts showing wear with new parts.

phragm (225), diaphragm plate (227), disk (220), spacer bushing (228), distance bushing (374) and lock washer (349)

Arrange the distance bushing like an upside down top hat. Its function is

NOTICE

to the actuators center. If these will ignored the spring may touch the actuators casing and rub in rare cases.

32. Install and position the spring adjusting plate (326) such that the imprint on the plate and air connection are opposite of each other.

33. Install the distance plate (231) and diaphragm casing (202 - 374), positioning the casing such that the air connections opposites.

34. Lubricate the threats of the long hexagon bolts (336) with an appropriate lubricant and load the springs uniformly in a clockwise sequence by tightening the long hexagon bolts (336), plain washers (337) and hexagon nuts (351). Alternative method see NOTICE step 4.

35. Install the short hexagon bolts (335), plain washers (337) and hexagon nuts (351).

36. Tighten the nuts (351) using a crosswise pattern in four steps,

37. Install the protection sleeve (339).

The surface, respectively the edges of the spring ends should be aligned

see section 15 torque requirements.

27. Lubricate the thread of the stem (211) with an appropriate lubricant and install and ﬁnger tighten the stem extension (380).

NOTICE

of the positioning template. Mark the position.

28. Turn clockwise the stem extension (380) using a suitable torque wrench, see section 15 torque requirements.

29. Loosen and remove the diaphragm-stem unit (211-

380) out of the stem clamping tool. Lubricate the actuator stem with an appropriate lubricant.

30. Carefully lower the diaphragm-stem unit (211- 380) into the diaphragm casing (202 - 334).

NOTICE

Mark align.

31. Install and align the actuator springs (229).

The diaphragm plate should be positioned to the diaphragm with the aid

Position the diaphragm-stem unit such that the air connection and the

38. Assemble the coupling parts

39. Lubricate the new O-ring (276) with an appropriate lubricant and install it onto the guide bushing (373).

40. Lubricate the threats of the hexagon bolts (334) and the new O-rings (279) with an appropriate lubricant and install it onto the guide bushing (373). Tighten the bolts (334) using a crosswise pattern in two steps, section 15 torque requirements.

41. Lubricate the new O-ring (272) with an appropriate lubricant.

42. Lower the thrust washer (255), O-ring (272), dia-

phragm (225), diaphragm plate (227), disk (220), spacer bushing (228), distance bushing (374) and lock washer (349)

onto the stem (211).

NOTICE

stroke stop takes over the special nut.

Arrange the distance bushing like an correctly wearing hat. The internal

(see page 54).

see

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

380

349

374

228

227

220

272

225

255

211

336

335

337

203 258

202

276

279

334

202

373

254 258 276

279 334

351

339

273

275

229

326

231

275

202 253 254 276

279 334

348

374

43. Lubricate the thread of the stem extension (348) with an appropriate lubricant and install and ﬁnger tighten the special nut (348).

NOTICE

tioned to the diaphragm with the aid

of the positioning template. Mark the position.

44. Fix the stem (211) with the stem clamping tool against twisting.

45. Turn the special nut (348) clockwise using a suitable torque wrench, see section 15 torque requirements.

46. Remove the stem clamping tool.

47. Install and align the actuator springs (229).

The surface, respectively the edges

The diaphragm plate should be posi-

NOTICE

of the spring ends should be aligned to the actuators center. If these will ignored the spring may touch the actuators casing and rub in rare cases.

48. Install and position the spring adjusting plate (326) such that the imprint on the plate and air connection are opposite of each other.

49. Install the distance plate (231) and diaphragm casing (203), positioning the casing such that the air connections opposites.

50. Lubricate the threats of the long hexagon bolts (336) with an appropriate lubricant and load the springs uniformly in a clockwise sequence by tightening the long hexagon bolts (336), plain washers (337) and hexagon nuts (351). Alternative method see NOTICE step 4.

51. Install the short hexagon bolts (335), plain washers (337) and hexagon nuts (351).

52. Tighten the nuts (351) using a crosswise pattern in four steps,

see section 15 torque requirements.

53. Install the protection sleeve (339).

54. Perform 3 full strokes and check the tightening of the casing bolting.

55. Log the maintenance interval and the work performed.

56. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

Item #

WW EU

202 6.1 Diaphragm Casing

203 6.2 Diaphragm Casing

211 6.12 Stem

220 6.14 Disk (2x)

225 6.16 Diaphragm (2x)

227 6.15 Diaphragm Plate (2x)

228 6.13 Spacer Bushing (2x)

229 6.21 Actuator Spring

231 6.22 Distance Plate (2x)

253 6.8 Lower Guide Bushing

254 6.80 Plain Bearing (2x)

255 6.18 Thrust Washer (2x)

258 6.26 Vent Plug (2x)

272 6.17 O-Ring (2x)

273 6.11 Scraper Ring

275 6.10 O-Ring (2x)

276 6.9 O-Ring (3x)

279 6.46 O-Ring (18x)

326 6.23 Spring Adjusting Plate (2x)

334 6.45 Hexagon Bolt (18x)

335 6.3.1 Hexagon Bolt - short (40x)

336 6.3.2 Hexagon Bolt - long (8x)

337 6.5 Plain Washer (48x)

339 6.25 Protection Sleeve (8x)

348 6.20 Special Nut

349 6.19 Lock Washer (2x)

351 6.4 Hexagon Nut (48x)

373 6.82 Intermediate Guide Bushing

374 6.47 Distance Bushing (2x)

380 6.81 Stem Extension

Alternatively, hex head assembled screws with captive ﬂat washers are used for this application.

Part

Table 36: Actuator parts Figure 33: Actuator parts

339

275

202

373

254 258 276

279 334

231

326

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

336

335

337

203 258

229

380

349

374

228

220

227

225

272

348

374

334

279

202

255

211

275

273

202 253 254 276

279 334

351

276

ﬂowserve.com

Actuator without attachments

Spring-to-open

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

WARNING

of the spring preload can be 60 000 N !

Danger of life in case of improper disassembly. The maximum sum

Disassembly instruction of the actuator subassembly

NOTICE

clamping tool are necessary. Limit disassembly only to necessary components.

1. Fix the actuator on the assembly table, if this is not already happened.

2. Disassemble the hexagon bolts (335), plain washers (337) and hexagon nuts (351) from the casing (203).

3. Pull off the protection sleeve (339).

4. Lubricate the threats and disassemble the hexagon bolts (336), plain washers (337) and hexagon nuts (351) counterclockwise.

For the disassembly, special tools such as a hydraulic spring press, stem wrench and stem

remove the O-rings (279), diaphragm casing (202) and O-ring (276).

10. Disassemble the hexagon bolts (335), plain washers (337) and hexagon nuts (351).

11. Pull off the protection sleeve (339).

WARNING

springs inside.

12. Lubricate the threads and loosen the long hexagon bolts (336), plain washers (337) and hexagon nuts (351) uniformly in a clockwise sequence as the springs expand.

NOTICE

quirement a threaded rods in 8.8 quality (ISO 898-1) or higher as well as washers and nuts alternatively.

13. Lift off the diaphragm casing (202 - 373).

14. Remove the stem clamping tool.

We recommend you to use a hydraulic spring press, as a minimum re-

Risk of injury by jumping out parts ! Pre-loaded

5. Lift off the diaphragm casing (203, 258).

6. Fix the stem (211) with the stem clamping tool against twisting.

WARNING

springs inside.

7. Loosen the special nut (348) counterclockwise and remove the lock washer (349), thrust washer (255), Oring (272), diaphragm (225), diaphragm plate (227), disk (220), spacer bushing (228) and distance bushing (374).

NOTICE

requirement a beam and threaded rods in 8.8 quality (ISO 898-1) or higher as well as washers and nuts alternatively.

8. Remove the actuator springs (229), spring adjusting plate (326) and distance plate (231).

We recommend you to use a hydraulic spring press, as a minimum

Risk of injury by jumping out parts ! Pre-loaded

15. Disassemble the coupling parts (see page 54).

16. Carefully pull out the diaphragm-stem unit (211 - 380).

17. Remove the actuator springs (229), spring adjusting plate (326) and distance plate (231).

18. Fix the diaphragm-stem unit into the stem clamping tool.

19. Loosen the stem extension (380) with the stem wrench counterclockwise and remove the lock washer (349), thrust washer (255), O-ring (272), diaphragm (225), diaphragm plate (227), disk (220), spacer bushing (228) and distance bushing (374).

20. Pull out the scraper ring (273) and O-rings (275, 2x).

21. Check stressed surface areas for damage such as scoring and deformities. Use a brass brush or similar tool to clean bolting. Check for corrosion or any other damage.

9. Loosen the hexagon bolts (334) counterclockwise and

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Reassembly instruction of the actuator subassembly

NOTICE

22. Lubricate the new O-ring (275) and new scraper ring (273) with an appropriate lubricant and install into the guide bushing (253).

23. Lubricate the new O-ring (275) with an appropriate lubricant and install into the guide bushing (373).

24. Fix the stem (211) into the stem clamping tool.

25. Lubricate the new O-ring (272) with an appropriate lubricant.

26. Lower the distance bushing (374), spacer bushing

onto the stem (211).

NOTICE

that of an internal stroke stop.

Always replace parts showing wear with new parts.

(228), disk (220), diaphragm plate (227), diaphragm (225), O-ring (272), thrust washer (255) and lock washer (349)

Arrange the distance bushing like an correctly wearing hat. Its function is

31. Loosen and remove the diaphragm-stem unit (211-

380) out of the stem clamping tool. Lubricate the actuator stem with an appropriate lubricant.

32. Carefully lower the diaphragm-stem unit (211- 380) into the diaphragm casing (202 - 373).

NOTICE

Mark align.

33. Install the diaphragm casing (202 - 373), positioning the casing such that the air connections opposites.

35. Install the short hexagon bolts (335), plain washers (337) and hexagon nuts (351).

36. Tighten the nuts (351) using a crosswise pattern in four steps,

37. Install the protection sleeve (339).

38. Assemble the coupling parts

Position the diaphragm-stem unit such that the air connection and the

see section 15 torque requirements.

(see page 54).

27. Lubricate the thread of the stem (211) with an appropriate lubricant and install and ﬁnger tighten the stem extension (380).

NOTICE

of the positioning template. Mark the position.

28. Turn clockwise the stem extension (380) using a suitable torque wrench, see section 15 torque requirements.

29. Install the distance plate (231) and positioning the spring adjusting plate (326) such that the imprint and air connection opposites.

30. Install and align the actuator springs (229).

NOTICE

to the actuators center. If these will ignored the spring may touch the actuators casing and rub in rare cases.

The diaphragm plate should be positioned to the diaphragm with the aid

The surface, respectively the edges of the spring ends should be aligned

39. Lubricate the new O-ring (276) with an appropriate lubricant and install it onto the guide bushing (373).

40. Lubricate the threats of the hexagon bolts (334) and the new O-rings (279) with an appropriate lubricant.

41. Install the diaphragm casing (202) onto the guide bushing (373) and tighten the bolts (334) using a crosswise pattern in two steps, requirements.

42. Install the distance plate (231) and positioning the spring adjusting plate (326) such that the imprint and air connection opposites.

43. Install and align the actuator springs (229).

NOTICE

to the actuators center. If these will ignored the spring may touch the actuators casing and rub in rare cases.

The surface, respectively the edges of the spring ends should be aligned

see section 15 torque

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

275

231

326

229

275

273

202

373

254

258

276

279 334

211

255

225

272

220

227

228

374

349

380

276

202 253

254 276

279 334

339

351

374

348

334

279

202

203

258

337

335

336

44. Lubricate the new O-ring (272) with an appropriate lubricant.

45. Lower the distance bushing (374), spacer bushing (228), disk (220), diaphragm plate (227), diaphragm (225), O-ring (272), thrust washer (255) and lock washer (349)

onto the stem extension (380).

Arrange the distance bushing like an

NOTICE

correctly wearing hat. The internal

stroke stop takes over the special nut.

46. Lubricate the thread of the stem extension (380) with

an appropriate lubricant.

The diaphragm plate should be posi-

NOTICE

tioned to the diaphragm with the aid

of the positioning template. Mark the position.

47. Fix the stem (211) with the stem clamping tool against

twisting.

48. Load the springs by tightening the

special nut (348) clockwise using a suitable torque wrench, see section 15 torque requirements.

We recommend you to use a hy-

NOTICE

draulic spring press, as a minimum requirement a beam and threaded rods in 8.8 quality (ISO 898-1) or higher as well as washers and nuts alternatively.

49. Remove the stem clamping tool.

50. Install the diaphragm casing (203), positioning the casing such that the air connections opposites.

51. Lubricate the threats of the long hexagon bolts (336) with an appropriate lubricant and load the springs uniformly in a clockwise sequence by tightening the long hexagon bolts (336), plain washers (337) and hexagon nuts (351).

52. Install the short hexagon bolts (335), plain washers (337) and hexagon nuts (351).

53. Tighten the nuts (351) using a crosswise pattern in four steps,

see section 15 torque requirements.

54. Install the protection sleeve (339).

55. Perform 3 full strokes and check the tightening of the

Alternatively, hex head assembled screws with captive ﬂat washers are used for this application.

casing bolting.

56. Log the maintenance interval and the work performed.

57. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

Item #

WW EU

Part

202 6.1 Diaphragm Casing

203 6.2 Diaphragm Casing

211 6.12 Stem

220 6.14 Disk (2x)

225 6.16 Diaphragm (2x)

227 6.15 Diaphragm Plate (2x)

228 6.13 Spacer Bushing (2x)

229 6.21 Actuator Spring

231 6.22 Distance Plate (2x)

253 6.8 Lower Guide Bushing

254 6.80 Plain Bearing (2x)

255 6.18 Thrust Washer (2x)

258 6.26 Vent Plug (2x)

272 6.17 O-Ring (2x)

273 6.11 Scraper Ring

275 6.10 O-Ring (2x)

276 6.9 O-Ring (3x)

279 6.46 O-Ring (18x)

326 6.23 Spring Adjusting Plate (2x)

334 6.45 Hexagon Bolt (18x)

335 6.3.1 Hexagon Bolt - short (40x)

336 6.3.2 Hexagon Bolt - long (8x)

337 6.5 Plain Washer (48x)

339 6.25 Protection Sleeve (8x)

348 6.20 Special Nut

349 6.19 Lock Washer (2x)

351 6.4 Hexagon Nut (48x)

373 6.82 Intermediate Guide Bushing

374 6.47 Distance Bushing (2x)

380 6.81 Stem Extension

Table 37: Actuator parts Figure 34: Actuator parts

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

336

275

202

373

254 276

279 334

380

349

255

272

225

227

335

337

203

348

374

220

228

211

374

229

326

231

275

273

351

339

334

279

202 258

276

202 253 258 254 276

279 334

ﬂowserve.com

Actuator with attachments

Spring-to-close

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

WARNING

of the spring preload can be 60 000 N !

Danger of life in case of improper disassembly. The maximum sum

Disassembly instruction of the actuator subassembly

NOTICE

clamping tool are necessary. Limit disassembly only to necessary components.

1. Fix the actuator on the assembly table, if this is not already happened.

2. Disassemble the hexagon bolts (335), plain washers (337) and hexagon nuts (351) from the casing (203).

3. Pull off the protection sleeve (339).

springs inside.

For the disassembly, special tools such as a hydraulic spring press, stem wrench and stem

WARNING

Risk of injury by jumping out parts ! Pre-loaded

and O-ring (276).

10. Disassemble the hexagon bolts (335), plain washers (337) and hexagon nuts (351).

11. Pull off the protection sleeve (339).

WARNING

springs inside.

12. Lubricate the threads and loosen the long hexagon bolts (336), plain washers (337) and hexagon nuts (351) uniformly in a clockwise sequence as the springs expand.

NOTICE

quirement threaded rods in 8.8 quality (ISO 898-1) or higher as well as washers and nuts alternatively.

13. Lift off the diaphragm casing (202 - 373), distance plate (231) and spring adjusting plate (326).

14. Remove the actuator springs (229).

We recommend you to use a hydraulic spring press, as a minimum re-

Risk of injury by jumping out parts ! Pre-loaded

4. Lubricate the threads and loosen the long hexagon bolts (336), plain washers (337) and hexagon nuts (351) uniformly in a clockwise sequence as the springs expand.

NOTICE

quirement threaded rods in 8.8 quality (ISO 898-1) or higher as well as washers and nuts alternatively.

5. Lift off the diaphragm casing (203 - 389), distance plate (231) and spring adjusting plate (326).

6. Remove the actuator springs (229).

7. Fix the stem (211) with the stem clamping tool against twisting.

8. Loosen the stem (348) with the stem wrench counterclockwise and remove the lock washer (349), distance bushing (374), spacer bushing (228), disk (220), diaphragm plate (227), diaphragm (225), O-ring (272) and thrust washer (255).

9. Loosen the hexagon bolts (334) counterclockwise and remove the O-rings (279), diaphragm casing (202)

We recommend you to use a hydraulic spring press, as a minimum re-

15. Remove the stem clamping tool.

16. Disassemble the coupling parts (see page 54).

17. Carefully pull out the diaphragm-stem unit (211 - 380).

18. Pull out the scraper ring (273) and O-rings (275, 3x).

19. Fix the diaphragm-stem unit into the stem clamping tool.

21. Check stressed surface areas for damage such as scoring and deformities. Use a brass brush or similar tool to clean bolting. Check for corrosion or any other damage.

Reassembly instruction of the actuator subassembly

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

NOTICE

22. Lubricate the new O-ring (275) and new scraper ring (273) with an appropriate lubricant and install into the guide bushing (253).

23. Lubricate the new O-ring (275) with an appropriate lubricant and install into the guide bushing (6.82).

24. Fix the stem (211) into the stem clamping tool.

25. Lubricate the new O-ring (272) with an appropriate lubricant.

26. Lower the thrust washer (255), O-ring (272), dia-

onto the stem (211).

NOTICE

that of an internal stroke stop.

Always replace parts showing wear with new parts.

phragm (225), diaphragm plate (227), disk (220), spacer bushing (228), distance bushing (374) and lock washer (349)

Arrange the distance bushing like an upside down top hat. Its function is

NOTICE

to the actuators center. If these will ignored the spring may touch the actuators casing and rub in rare cases.

32. Install and position the spring adjusting plate (326) such that the imprint on the plate and air connection are opposite of each other.

33. Install the distance plate (231) and diaphragm casing (202 - 389), positioning the casing such that the air connections opposites.

35. Install the short hexagon bolts (335), plain washers (337) and hexagon nuts (351).

36. Tighten the nuts (351) using a crosswise pattern in four steps,

37. Install the protection sleeve (339).

The surface, respectively the edges of the spring ends should be aligned

see section 15 torque requirements.

27. Lubricate the thread of the stem (211) with an appropriate lubricant and install and ﬁnger tighten the stem extension (380).

NOTICE

of the positioning template. Mark the position.

28. Turn clockwise the stem extension (380) using a suitable torque wrench, see section 15 torque requirements.

29. Loosen and remove the diaphragm-stem unit (211 -

380) out of the stem clamping tool. Lubricate the actuator stem with an appropriate lubricant.

30. Carefully lower the diaphragm-stem unit (211 - 380) into the diaphragm casing (202 - 373).

NOTICE

Mark align.

31. Install and align the actuator springs (229).

The diaphragm plate should be positioned to the diaphragm with the aid

Position the diaphragm-stem unit such that the air connection and the

38. Assemble the coupling parts

39. Lubricate the new O-ring (276) with an appropriate lubricant and install it onto the guide bushing (373).

41. Lubricate the new O-ring (272) with an appropriate lubricant.

42. Lower the thrust washer (255), O-ring (272), dia-

phragm (225), diaphragm plate (227), disk (220), spacer bushing (228), distance bushing (374) and lock washer

onto the stem (211).

NOTICE

stroke stop takes over the special nut.

Arrange the distance bushing like an correctly wearing hat. The internal

(see page 54).

see

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

275

231

326

229

275

273

202 373 254

258

276 279 334

211

255

225

272

220

227

228

374

349

380

202 253 254 276 279 334

339

351

374

348

334

279

276

202

202 389 254 276 279 334 258

337

335

336

43. Lubricate the thread of the stem extension (380) with an appropriate lubricant and install and ﬁnger tighten the stem (348).

NOTICE

tioned to the diaphragm with the aid

of the positioning template. Mark the position.

44. Fix the stem (211) with the stem clamping tool against twisting.

45. Turn clockwise the stem (348) using a suitable torque wrench, see section 15 torque requirements.

46. Remove the stem clamping tool.

47. Install and align the actuator springs (229).

The surface, respectively the edges

The diaphragm plate should be posi-

NOTICE

of the spring ends should be aligned to the actuators center. If these will ignored the spring may touch the actuators casing and rub in rare cases.

48. Install and position the spring adjusting plate (326) such that the imprint on the plate and air connection are opposite of each other.

49. Install the distance plate (231) and diaphragm casing (203), positioning the casing such that the air connections opposites.

51. Install the short hexagon bolts (335), plain washers (337) and hexagon nuts (351).

52. Tighten the nuts (351) using a crosswise pattern in four steps,

see section 15 torque requirements.

53. Install the protection sleeve (339).

54. Perform 3 full strokes and check the tightening of the casing bolting.

55. Log the maintenance interval and the work performed.

56. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

Item #

WW EU

202 6.1 Diaphragm Casing (4x)

211 6.12 Stem

220 6.14 Disk (2x)

225 6.16 Diaphragm (2x)

227 6.15 Diaphragm Plate (2x)

228 6.13 Spacer Bushing (2x)

229 6.21 Actuator Spring

231 6.22 Distance Plate (2x)

253 6.8 Lower Guide Bushing

254 6.80 Plain Bearing (3x)

255 6.18 Thrust Washer (2x)

258 6.26 Vent Plug (2x)

272 6.17 O-Ring (2x)

273 6.11 Scraper Ring (2x)

275 6.10 O-Ring (3x)

276 6.9 O-Ring (4x)

279 6.46 O-Ring (24x)

326 6.23 Spring Adjusting Plate (2x)

334 6.45 Hexagon Bolt (24x)

335 6.3.1 Hexagon Bolt - short (40x)

336 6.3.2 Hexagon Bolt - long (8x)

337 6.5 Plain Washer (48x)

339 6.25 Protection Sleeve (8x)

348 6.20 Stem

349 6.19 Lock Washer (2x)

351 6.4 Hexagon Nut (48x)

373 6.82 Intermediate Guide Bushing

374 6.47 Distance Bushing (2x)

380 6.81 Stem Extension

389 6.83 Upper Guide Bushing

Alternatively, hex head assembled screws with captive ﬂat washers are used for this application.

Part

Table 38: Actuator parts Figure 35: Actuator parts

275

202 373 254 276 279 334 258

231

326

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

336

335

337

202 389 254 276 279 334 258

229

380

349

374

228

220

227

225

272

348

374

334

279

202

255

211

275

273

202 253 254 276 279 334

351

339

276

ﬂowserve.com

Actuator with attachments

Spring-to-open

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

WARNING

of the spring preload can be 60 000 N !

Danger of life in case of improper disassembly. The maximum sum

Disassembly instruction of the actuator subassembly

NOTICE

clamping tool are necessary. Limit disassembly only to necessary components.

1. Fix the actuator on the assembly table, if this is not already happened.

2. Disassemble the hexagon bolts (335), plain washers (337) and hexagon nuts (351) from the casing (203).

3. Pull off the protection sleeve (339).

4. Lubricate the threats and disassemble the hexagon bolts (336), plain washers (337) and hexagon nuts (351) counterclockwise.

For the disassembly, special tools such as a hydraulic spring press, stem wrench and stem

9. Loosen the hexagon bolts (334) counterclockwise and remove the O-rings (279), diaphragm casing (202) and O-ring (276).

10. Disassemble the hexagon bolts (335), plain washers (337) and hexagon nuts (351).

11. Pull off the protection sleeve (339).

WARNING

springs inside.

12. Lubricate the threads and loosen the long hexagon bolts (336), plain washers (337) and hexagon nuts (351) uniformly in a clockwise sequence as the springs expand.

NOTICE

quirement a threaded rods in 8.8 quality (ISO 898-1) or higher as well as washers and nuts alternatively.

13. Lift off the diaphragm casing (202 - 373).

14. Remove the stem clamping tool.

We recommend you to use a hydraulic spring press, as a minimum re-

Risk of injury by jumping out parts ! Pre-loaded

5. Lift off the diaphragm casing (202 - 389).

6. Fix the stem (211) with the stem clamping tool against twisting.

WARNING

springs inside.

7. Loosen the stem (348) counterclockwise and remove the lock washer (349), thrust washer (255), O-ring (272), diaphragm (225), diaphragm plate (227), disk (220), spacer bushing (228) and distance bushing (374).

NOTICE

requirement a beam and threaded rods in 8.8 quality (ISO 898-1) or higher as well as washers and nuts alternatively.

8. Remove the actuator springs (229), spring adjusting plate (326) and distance plate (231).

We recommend you to use a hydraulic spring press, as a minimum

Risk of injury by jumping out parts ! Pre-loaded

15. Disassemble the coupling parts (see page 54).

16. Carefully pull out the diaphragm-stem unit (211 - 380).

17. Remove the actuator springs (229), spring adjusting plate (326) and distance plate (231).

18. Fix the diaphragm-stem unit into the stem clamping tool.

20. Pull out the scraper ring (273) and O-rings (275, 3x).

21. Check stressed surface areas for damage such as scoring and deformities. Use a brass brush or similar tool to clean bolting. Check for corrosion or any other damage.

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Reassembly instruction of the actuator subassembly

NOTICE

22. Lubricate the new O-ring (275) and new scraper ring (273) with an appropriate lubricant and install into the guide bushing (253).

23. Lubricate the new O-ring (275) with an appropriate lubricant and install into the guide bushing (373).

24. Fix the stem (211) into the stem clamping tool.

25. Lubricate the new O-ring (272) with an appropriate lubricant.

26. Lower the distance bushing (374), spacer bushing

onto the stem (211).

NOTICE

that of an internal stroke stop.

Always replace parts showing wear with new parts.

(228), disk (220), diaphragm plate (227), diaphragm (225), O-ring (272), thrust washer (255) and lock washer (349)

Arrange the distance bushing like an correctly wearing hat. Its function is

31. Loosen and remove the diaphragm-stem unit (211-

380) out of the stem clamping tool. Lubricate the actuator stem with an appropriate lubricant.

32. Carefully lower the diaphragm-stem unit (211- 380) into the diaphragm casing (202 - 334).

NOTICE

Mark align.

33. Install the diaphragm casing (202 - 373), positioning the casing such that the air connections opposites.

35. Install the short hexagon bolts (335), plain washers (337) and hexagon nuts (351).

36. Tighten the nuts (351) using a crosswise pattern in four steps,

37. Install the protection sleeve (339).

38. Assemble the coupling parts

Position the diaphragm-stem unit such that the air connection and the

see section 15 torque requirements.

(see page 54).

27. Lubricate the thread of the stem (211) with an appropriate lubricant and install and ﬁnger tighten the stem extension (380).

NOTICE

of the positioning template. Mark the position.

28. Turn clockwise the stem extension (380) using a suitable torque wrench, see section 15 torque requirements.

29. Install the distance plate (231) and positioning the spring adjusting plate (326) such that the imprint and air connection opposites.

30. Install and align the actuator springs (229).

NOTICE

to the actuators center. If these will ignored the spring may touch the actuators casing and rub in rare cases.

The diaphragm plate should be positioned to the diaphragm with the aid

The surface, respectively the edges of the spring ends should be aligned

39. Lubricate the new O-ring (276) with an appropriate lubricant and install it onto the guide bushing (373).

40. Lubricate the threats of the hexagon bolts (334) and the new O-rings (279) with an appropriate lubricant.

41. Install the diaphragm casing (202) onto the guide bushing (373) and tighten the bolts (334) using a crosswise pattern in two steps, requirements.

42. Install the distance plate (231) and positioning the spring adjusting plate (326) such that the imprint and air connection opposites.

43. Install and align the actuator springs (229).

NOTICE

to the actuators center. If these will ignored the spring may touch the actuators casing and rub in rare cases.

The surface, respectively the edges of the spring ends should be aligned

see section 15 torque

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

336

335

337

202 389 254 276 279 334

202 258

279

334

348

374

276

351

339

202 253 254 276 279 334 258

380

349

374

228

227

220

272

225

255

211

202 373 254 276 279 334

273

275

229

326

231

275

44. Lubricate the new O-ring (272) with an appropriate lubricant.

45. Lower the distance bushing (374), spacer bushing (228), disk (220), diaphragm plate (227), diaphragm (225), O-ring (272), thrust washer (255) and lock washer (349)

onto the stem extension (6.81).

Arrange the distance bushing like an

NOTICE

correctly wearing hat. The internal

stroke stop takes over the special nut.

46. Lubricate the thread of the stem extension (380) with

an appropriate lubricant.

The diaphragm plate should be posi-

NOTICE

tioned to the diaphragm with the aid

of the positioning template. Mark the position.

47. Fix the stem (211) with the stem clamping tool against

twisting.

48. Load the springs by tightening the

stem (348) clockwise using a suitable torque wrench, see section 15 torque requirements.

We recommend you to use a hy-

NOTICE

draulic spring press, as a minimum requirement a beam and threaded rods in 8.8 quality (ISO 898-1) or higher as well as washers and nuts alternatively.

49. Remove the stem clamping tool.

50. Install the diaphragm casing (203), positioning the casing such that the air connections opposites.

52. Install the short hexagon bolts (335), plain washers (337) and hexagon nuts (351).

53. Tighten the nuts (351) using a crosswise pattern in four steps,

see section 15 torque requirements.

54. Install the protection sleeve (339).

55. Perform 3 full strokes and check the tightening of the

casing bolting.

56. Log the maintenance interval and the work performed.

57. The actuator subassembly is ready to be mounted on the valve and the accessories attached.

Item #

WW EU

202 6.1 Diaphragm Casing (4x)

211 6.12 Stem

220 6.14 Disk (2x)

225 6.16 Diaphragm (2x)

227 6.15 Diaphragm Plate (2x)

228 6.13 Spacer Bushing (2x)

Part

229 6.21 Actuator Spring

231 6.22 Distance Plate (2x)

253 6.8 Lower Guide Bushing

254 6.80 Plain Bearing (3x)

255 6.18 Thrust Washer (2x)

258 6.26 Vent Plug (2x)

272 6.17 O-Ring (2x)

273 6.11 Scraper Ring

275 6.10 O-Ring (3x)

276 6.9 O-Ring (4x)

279 6.46 O-Ring (24x)

326 6.23 Spring Adjusting Plate (2x)

334 6.45 Hexagon Bolt (24x)

335 6.3.1 Hexagon Bolt - short (40x)

336 6.3.2 Hexagon Bolt - long (8x)

337 6.5 Plain Washer (48x)

339 6.25 Protection Sleeve (8x)

348 6.20 Stem

349 6.19 Lock Washer (2x)

351 6.4 Hexagon Nut (48x)

373 6.82 Intermediate Guide Bushing

374 6.47 Distance Bushing (2x)

380 6.81 Stem Extension

389 6.83 Upper Guide Bushing

Alternatively, hex head assembled screws with captive ﬂat washers are used for this application.

Table 39: Actuator parts Figure 36: Actuator parts

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

336

275

202 373 254 276 279 334

380

349

255

272

225

348

335

337

202 389 254 276 279 334

374

227

220

228

211

374

229

326

231

275

273

351

339

334

279

202 258

276

202 253 254 276 279 334 258

ﬂowserve.com

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

16 Torque Requirements

Torque Requirements for VALVE / ACTUATOR LOCK NUT (76, 256) per actuator size

Unit 253 503 701 1502 3002

ft lb

Torque Requirements for COUPLING PARTs (345, 113, 249, 344, 240, 420, 214) per actuator size

Unit 253 503 701 1502 3002

ft lb

Unit 253 503 701 1502 3002

ft lb 33

Torque Requirements for SPECIAL NUT / STEM EXTENSION & STEM (348, 380) per actuator size

Unit 253 503 701 1502 3002

Nm 45 110 240

ft lb 33 81 177

Tighten the lock nut clockwise with a rounded chisel and a 1,5 kg (3.5 lbs) hammer before occurs the kickback

Tighten the subordinate bolting properly by hand in accordance with the relevant technical standards.

Torque Requirements for HEXAGON BOLT (334) per actuator size

n.n.

effect.

Torque Requirements for CASING BOLTING (335 & 351 and 336 & 351, 209) per actuator size

Unit 253 503 701 1502 3002

Nm 20

ft lb 15

Torque Requirements for HEXAGON BOLTS (150) per actuator size

Unit 253 503 701 1502 3002

Nm 15 25

ft lb 11 18

17 Lubricants

Lubricant / Antiseize

Klüber Unisilikon

Fastorq A/G Klüberpaste 46 MR 401

Alcohol 96%

Fastorq A/G Klüberpaste 46 MR 401

Standard,

from -40°C to +80°C

-40°F to +176°F

Low temperature,

from -60°C to -41°C

-76°F to -40°F

Use

Actuator O-Ring‘s (237, 247)

Threads of the Actuator (107, 211, 250, 330, 334, 335, 336, 365) and Guide (247, 358)

Actuator O-Ring‘s (237, 247)

Threads of the Actuator (107, 211, 250, 330, 334, 335, 336, 365)

and Guide (247, 358)

DOW Molykote 55 O-Ring

WW (World Wide) EU (European Union)

n.n.

L 250 L

18 Disposal

FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16

Up to 95 % of the FlowAct pneumatic actuator is metal. The remaining materials are synthetic, rubber, polycarbonate (PC), silicone, paint and lubricants.

NOTICE

tor must observe national and international environmental conditions for rotary actuator removal from the pipeline and cleaning. Permissible limit values must be maintained to ensure suitable protective measures; service personnel must be properly instructed in performing the disassembly and reassembly procedure.

Potential hazards and their sources are under the operator‘s inﬂuence. The opera-

The valve should be professionally disassembled and reassembled. Metal parts should be scrapped, with the remaining materials disposed of according the national conditions.

Peripheral units (accessories) should be recycled according the relevant manufacturer‘s User Instructions.

ﬂowserve.com

USA

Flowserve Flow Control Division 1350 N. Mt. Springs Parkway Springville, UT 84663 USA Phone: +1 801 489 8611 Fax: +1 801 489 3719

Austria

Flowserve Control Valves GmbH Kasernengasse 6 9500 Villach AUSTRIA Phone: +43 (0) 4242 41181 - 0 Fax: +43 (0) 4242 41181 - 50

France

Flowserve France S.A.S PB 60 63307 Thiers Cedex FRANCE Phone: +33 4738 04266 Fax: +33 4738 01424

India

Flowserve India Controls Pvt Ltd. Plot # 4, 1A, Road #8 EPIP Whiteﬁeld Bangalore, Karnataka, 560066 INDIA Phone: 91 80 40146200 Fax: 91 80 28410286

FCD VLENIMFACTA4 10/16 Printed in Europe

To ﬁnd your local Flowserve representative

or for more information about Flowserve Corporation, visit www.ﬂowserve.com.

Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to perform its intended function safely during its useful life. However, the purchaser or user of Flowserve products should be aware that Flowserve products might be used in numerous applications under a wide variety of industrial service conditions. Although Flowserve can (and often does) provide general guidelines, it cannot provide specific data and warnings for all possible applications. The purchaser/user must therefore assume the ultimate responsibility for the proper sizing and selection, installation, operation, and maintenance of Flowserve products. The purchaser/user should read and understand the Installation Operation Maintenance (IOM) instructions included with the product, and train its employees and contractors in the safe use of Flowserve products in connection with the specific application.

While the information and specifications contained in this literature are believed to be accurate, they are supplied for informative purposes only and should not be considered certified or as a guarantee of satisfactory results by reliance thereon. Nothing contained herein is to be construed as a warranty or guarantee, express or implied, regarding any matter with respect to this product. Because Flowserve is continually improving and upgrading its product design, the specifications, dimensions and information contained herein are subject to change without notice. Should any question arise concerning these provisions, the purchaser/user should contact Flowserve Corporation at any one of its worldwide operations or offices.

China

Flowserve Fluid Motion and Control (Suzhou) Co., Ltd. No. 35, Baiyu Road, Suzhou Industrial Park, Suzhou Jiangsu Province, P.R. 215021 CHINA Phone: 86 512 6288 8790 Fax: 86 512 6288 8736

Singapore

Flowserve Pte. Ltd. 12 Tuas Avenue 20 Republic of Singapore 638824 SINGAPORE Phone: +65 6879 8900 Fax: +65 6862 4940

Saudi Arabia

Flowserve Abahsain Flow Control Co., Ltd. Makkah Road, Phase 4 Plot 10 & 12, 2nd Industrial City Damman, Kingdom of Saudi Arabia Phone: +966 3 857 3150 X 243 Fax: +966 3 857 4243

Flowserve FlowAct Series, FlowAct 1502, FlowAct 253, FlowAct 503, FlowAct 3002 User Instructions

Specifications and Main Features

Frequently Asked Questions

User Manual