Emerson XL281, XL131, XL221, XL426, XL681 Installation, Operation & Maintenance Instructions Manual

Installation Operation & Maintenance Instructions

Hytork XL

MAC050515 EN Rev. C
May 2016

www.Hytork.com

Table 1 Applicable Models:

XL 26 XL 281 XL 2586

XL 71 XL 426 XL 4581

XL 131 XL 681

XL 186

XL 1127

XL 221 XL 1372

1 Important Safety Procedures

Installation, adjustment, putting into service, use, assembly, disas-

sembly and maintenance of the Actuator is strictly reserved to quali-

ed personnel.

Before installation, operation and maintenance, read the relevant

sections of:

- This manual

- Quick Reference Guide: DOC.QRG.XL

Caution: Always disconnect the Air and Electrical supplies before

carrying out any form of maintenance on an Actuator.

Caution: When removing any ball valve or plug valve assemblies

from a pipe system, isolate the piping system on which the Actuator

is installed and relieve any media pressure that may be trapped in

the valve cavities before removing the Actuator for maintenance.

Caution: Always contain the Spring tension with HYTORK Retrac-

tor Rods as explained in Section 9 (Disassembly procedure). Follow

instructions for using the Retractor Rod carefully. Only HYTORK

manufactured or approved Retractor Rods are to be used for Spring

removal. As with any threaded tool that is frequently used Retractor

Rods should be checked to ensure that the threads are not worn or

damaged in any way and greased regularly. Any damaged or worn

Rods must not be used and must be destroyed.

Never attempt to ‘BLOW OUT’ the Pistons or the End caps from the

Actuator Body by using air pressure.

Never turn the stop screws completely out when the actuator is

under pressure

Numbers in brackets (#) refer to parts on the exploded view drawing

(Fig. 5).

All HYTORK XL Spares Kits are supplied with SAFEKEY assemblies

(13/14) cut to an exact length which will t the circumference of the

End Cap (21) when fully assembled into the Actuator. Any shortened

SAFEKEY must not be used. If in doubt contact Emerson Process

Management or your local HYTORK Stocking Distributor.

Read the relevant sections carefully before continuing.

1.1 Warehouse storage

HYTORK Actuators should be stored in a clean, dry warehouse, free

from excessive vibration and rapid temperature changes.

Actuators should not be stored on any oor surface.

1.2 On site storage

HYTORK actuators should be stored in a clean, dry warehouse, free

from excessive vibration and rapid temperature changes.

Prevent moisture or dirt entering the actuator. Plug or seal both air

connection ports.

Important! Failure to follow proper storage guidelines will void war-

ranty

1.3 Lifting instructions

• Use lifting equipement as required by national or local legislation.

• Use lifting straps to lift the assembly of actuator and valve.

• Do not attach lifting straps to only the actuator, to lift the assem-

bly of actuator and valve.

Table 2 Weight of Actuators

Model

Double Acting

Spring Return with S80

Springs

Kg Lbs Kg Lbs

XL26 1.39 3.06 1.53 3.37

XL71 2.39 5.27 2.78 6.13

XL131 3.90 8.60 4.76 10.49

XL186 4.77 10.52 5.45 12.02

XL221 6.19 13.65 7.76 17.11

XL281 7.02 15.47 9.90 21.83

XL426 7.30 16.10 12.50 27.56

XL681 8.80 19.40 22.50 49.60

XL1127 22.00 48.50 36.00 79.37

XL1372 27.00 59.52 46.60 102.73

XL2586 46.00 101.41 79.00 174.16

XL4581 83.00 182.98 142.00 313.05

Page 2

Hytork XL

Installation Operation & Maintenance Instructions

MAC050515 EN Rev. C

May 2016

2 ATEX instructions for use in (potential)

explosive areas

2.1 Intended use

The Hytork XL series pneumatic actuators are a Group II category

2 equipment and intended for use in areas in which explosive

atmospheres caused by mixtures of air and gases, vapours, mists or

by air/dusts are likely to occur. Therefore it may be used in (ATEX)

classied Zones 1, 2 (Gasses) and/or 21, 22 (Dust).

2.2 Safety instructions

a Assembly, disassembly and maintenance, is only allowed at the

actuator, when, at the time of the activity, there is not an explo­sive mixture.

b Prevent entry of explosive mixtures into the actuator. We suggest

utilizing a solenoid with a “breather” function on spring return
actuators when used in potentially explosive atmospheres.

c The plastic position indicator caps are approved for ATEX gas

group IIB areas. In areas where ATEX gas group IIC require­ments apply, do not use the plastic position indicator cap of sizes
XL426 up to XL4581, to avoid build up of static electricity.

d In order to avoid increasing dust explosion risk, periodically clean

dust deposits from all equipment.

e When equipment is installed in a hazardous area location (po-

tentially explosive atmosphere), prevent sparks by proper tool
selection and avoiding other types of impact energy.

f Proper care must be taken to avoid generation of static electricity

on the non-conductive external surfaces of the equipment (e.g.
rubbing of surfaces, etc.).

g HYTORK XL actuators do not have an inherent ignition source

due to electro-static discharge, but explosion hazard may be
present due to the discharge of static electricity from other valve
assembly components.

– To avoid personal injury or property damage, make sure that

the valve is grounded to the pipeline before placing the valve
assembly into service.

– Use and maintain alternate shaft-to-valve body bonding, such

as a shaft-to-body bonding strap assembly.

2.3 Maximum temperatures

Temperature

Valid for actuator

model

Ambient range ATEX class

TX (ATEX surface

temperature)

-20..75°C T6 T85°C (185°F)
Standard Tem-

perature models

-20..80°C T5 T90°C (194°F)

-20..80°C T1...T4 T90°C (194°F)

-20..75°C T6 T85°C (185°F)

High Temperature

models

-20..90°C T5 T100°C (212°F)

-20..120°C T1...T4 T130°C (266°F)

-40..75°C T6 T85°C (185°F)

Low Temperature

models

-40..80°C T5 T90°C (194°F)

-40..80°C T1...T4 T90°C (194°F)

-20..250°C for
2 hours

T2 T260°C 500°F)

Tunnel

application models

Note:

a The actual maximum surface temperature depends not on the

equipment itself, but mainly on operating conditions like e.g. the
temperature of the supply media.

b The specied values are valid with the following conditions:

- Maximum working frequency of the actuator is 1Hz at a maxi­mum of 50 cycles per hour and at maximum load.

3 Operating Media, Pressures and Temperatures

3.1 Operating media

a Use clean, dry or lubricated air or inert gas.
b Maximum pressure : 8 barg / 116PSI
Note:
On applications where the spring stroke of single acting actuators

is pneumatically operated, the maximum pressure is 6.5 bar /

95PSI
c Dew point 10 K below operating temperature.
d For subzero applications take appro priate measures.

3.2 Operating Temperature range

a Using standard seals and greases the operating temperature

range is -20°C to + 100°C (-4°F to +212°F) as is indicated on the

product label.
b Other medias and temperatures may be used but consult your

local Hytork supplier for conrmation as to suitability.

4 Actuator to Valve Installation

The Pinion drive, coupling device and Valve Stem should be cen-

tered and concentric to prevent any side loading to the Pinion Radial

Bearing and Valve Stem Seat area. Ensure that the coupling shaft to

be operated is a tight but free sliding t into the female drive in the

Actuator Pinion (19).

4.1 Bi-directional Travel Stops

Hytork XL actuators have two travel stops (22, 23 and 24) for setting

acurately the travel and the open and closed positions. XL2586 and

XL4581 can be tted with the optional Bottom Stop Block for setting

the travel.

The actuator has a factory set stroke of 90°. The adjustable stroke

range of the actuator is :

- at closed (0°) position : -3° to +7°

- at open (90°) position : -83° to +93°

REMARK:

- If the actuator is assembled for reverse operation, instead of

standard operation, Stop “1” will adjust the “open” position

and stop “2” the “closed” position.

“2” “1”

Stop marked Stop marked

View from above

Fig. 1 Travel stops

Installation Operation & Maintenance Instructions

Hytork XL

Page 3

MAC050515 EN Rev. C
May 2016

4.2 Travel Stop Adjustments

1 Operate valve/actuator assembly to the open position.
2 Remove air supply.
3 Slacken locknut (24) on the “closed” stop (marked “2”).
4 Turn the “closed” stop clockwise to reduce or counter clockwise

to increase the travel.
5 Tighten the lock nut.
6 Connect air and check that the position is correct. If not repeat

from 2.
7 Operate valve/actuator assembly to the “closed” position.
8 Remove air supply.
9 Adjust “open” travel stop (marked “1”) as from step 3 to 6.

5 Piping Instructions

(See Fig. 2) All Actuators can be either piped with solid or exible

tubing with the solenoid valve mounted remotely from the actuator or

by mounting a NAMUR designed solenoid valve DIRECTLY onto the

NAMUR mounting pad on the side of the actuator.

6 Solenoid Valves on Spring Return Actuators

(See Fig. 3) It is recommended that on Spring Return Actuators,

the HYTORK “CATS” Solenoid Valves are used. These Valves are

specially designed to prevent contamination of the internals of the

Actuator by dirt from the atmosphere. This increases the working life

of the Actuator which reduces down time and maintenance periods.

7 Position feedback

All position feedback or positioning accesories, that comply to the

VDI/VDE 3845 (NAMUR) standard, can be mounted easily on top of

Hytork XL actuators. To access the pinion top, remove the position

indicator.

8 Spares Recommendations

When disassembling and carrying out maintenance work on the

XL Actuator, a HYTORK Spares Kit must be used to replace all ‘O’

Rings, DURASTRIP Bearings, Washers etc. This Kit is available

from Emerson Process Management or its Stocking Distributors.

9 Disassembly procedure

9.1 End cap and springs dis-assembly on Spring
Return actuators

1 Release Locking Nuts (24) and remove both Travel Stops (22)

and Thread Seals (23) or ‘O’-rings (23a).

2 Remove the Indicator (7) from the top of the Pinion (19) For XL26

to XL221 use an Allen key size 4mm. For the larger sizes the
Indicator can by pulled from the pinion top.

3 Remove both Sealing Bolts (28) and seals (29) from the End

Caps (21).

4 Place both the HYTORK Retractor Rods through the hole in the

End Caps and screw the Rods into :

- For XL 26 to XL 681 the Pistons (20)

- For XL 1127 to XL4581 the Retractor plate (20a, see also Fig

5) until travel is stopped (DO NOT OVERTIGHTEN) and take

care the nut and washer being free of the End Cap face.
5 Turn back the Rod 1/2 turn.
6 Screw the adjusting nut and washer by hand clockwise down

the Retractor Rod until they come up against the face of the End
Cap.

7 Prevent the “hold-nuts “ to rotate by one wrench. Use another

wrench, to screw both adjusting nuts half turn at a time (see Fig.

5) clockwise down the Rods until the end cap loosens (Maximum;
approximately two complete turns). This draws the;

- For XL 26 to XL681 the Pistons (20)

- For XL 1127 to XL4581 the Retractor plate (see also Fig 5) to

the end caps (21) and compresses the springs. This Spring-

compression, releases the Spring force and un-locks the

SAFEKEY for removal.
8 Rotate the Caps to ensure that the Springs are retracted; if the

Cap will not turn easily, a gentle tapping with a plastic hammer
against the endcap will loosen the end cap.

9 Unscrew the two slotted SAFEKEYS (13/14), and gently pull

each SAFEKEY from the Body. If the SAFEKEY resists removal,
gently tap the End Cap with a soft hammer to assist release.

10 When both SAFEKEYS have been removed, use a wrench to

rotate the Pinion, driving the pistons (20) apart until they partially
push the End Caps from the Body.

- For XL 26 to XL681 the Pistons (20), springs and end cap will

come out

- For XL 1127 to XL4581 the Retractor plate, springs and end

cap will come out.

Spring return actuator

operation

Double acting actuator

operation

Spring stroke operation Air stroke operation

Fig. 2 Solenoid operation

Fig. 3 HYTORK “CATS” Solenoid Valve

Page 4

Hytork XL

Installation Operation & Maintenance Instructions

MAC050515 EN Rev. C

May 2016

567891019 23252627 22 24 20

11 214 15 21 282913

4

1213161718

Fig. 4 Hytork XL Actuator Parts

Table 3 Parts and materials

Pos. Description Material Qty Note: Pos. Description Material Qty Note:

1 Ball Bearing Chromium Steel 2 - 17 ‘O’ Ring (Pinion bottom) Nitrile 1 -

2 ‘O’ Ring (End Cap) Nitrile 2 - 18 Bearing (Pinion bottom) Acetal M90 1 -

3 Wear Ring (Piston) Acetal M90 2 - 19 Pinion Steel 1 -

4 ‘O’ Ring (Piston) Nitrile 2 - 20 Piston Aluminum alloy 2 -

5 Thrust Bearing (Circlip) Acetal M90 1 - 20a Retractor plate Aluminum alloy 2 1

6 Circlip Spring Steel 1 - 21 End Cap (DA & SR) Aluminum alloy 2 2

7 Indicator Nylon 1 - 21a End Cap DA Aluminum alloy 2 1

7a Indicator screw Stainless steel 1 3 22 Travel Stop Stainless Steel 2 5

8 ‘O’ Ring (Pinion top) Nitrile 1 - 23 Thread Seal Steel/Rubber 2 3/6

9 Bearing (Pinion top) Acetal M90 1 - 23a ‘O’ Ring (Travel Stop) Nitrile 2 4

10 Bearing block (Piston) Acetal M90 2 - 23b Washer (Travel Stop) Stainless Steel 2 4

11 Body Aluminum alloy 1 - 24 Locking Nut Stainless Steel 2 5

12 ‘O’ Ring (SAFEKEY) Nitrile 2 - 25 Thrust Washer (Circlip) Stainless Steel 1 -

13 SAFEKEY Head Grivory 2 - 26 Spring Outer Spring Steel 2 -

14 SAFEKEY Wire Stainless steel 2 - 27 Spring Inner Spring Steel 2 -

15 Thread Insert Steel 2 - 28 Sealing Bolt (End Cap) Steel 2 -

16 Location Ring Acetal 1 - 29 ‘O’ Ring (Sealing Bolt) Nitrile 2 -

Notes:
1 on XL 1127 to 4851
2 on XL 26 to XL 681
3 on XL 26 to XL 221
4 on XL 281 to XL 1372
5 on XL 26 to XL 1372
6 on XL 26/71 equipped with extra nylon washer

Installation Operation & Maintenance Instructions

Hytork XL

Page 5

MAC050515 EN Rev. C
May 2016

11 To keep the Spring Pack Assembly intact (see Fig. 5), leave the

Retractor Rod in place. To disassemble the Spring Pack, unscrew
the adjusting nut on the Retractor Rod relieving the Spring force,
while preventing the rod from turning with a wrench on the hold
nuts.

9.2 Changing spring sets on XL26 to XL681

12 If only the springs set of the actuator has to be changed, perform

steps 1 to 9. These steps can be performed at both end caps
simultaneously or at one end cap only.

After step 9 unscrew the adjusting nut on the Retractor Rod re-

lieving the Spring force, while preventing the rod from turning with
a wrench on the hold nuts.

9.3 End cap disassembly on double acting actuators

13 Remove the SAFEKEY as described previously. The Retractor

Rod is not required for Double Acting Actuators. Remove the End
Caps by pulling them free from the Body keeping them square to
the end face of the Body.

9.4 Piston disassembly

14 Rotate the Pinion using a wrench to drive the Pistons apart and

remove from the Body by pulling the Pistons.

9.5 Pinion disassembly

15 Remove the snap ring (Circlip) (6), Thrust Washer (25) and

DURASTRIP Thrust Bearing (5) from the top of the Pinion and
CAREFULLY push the Pinion from the Body through the bottom.
Take care that the Pinion does not damage the pinion bores on
removal. If necessary, remove any burrs, etc. from the top of the
Pinion before removal.

16 Carefully remove Pinion Top Bearing (9) from the Body.

9.6 Inspection

17 Clean and examine all parts for damage and wear. Emerson Pro-

cess Management recommends ‘O’ Rings, DURASTRIP Bear­ings, SAFEKEYS, Washers, etc. are replaced using a HYTORK
XL Spares Kit.

10 Assembly Instructions

Note: The grease used in ALL HYTORK Standard Model Actua-

tors is a Lithium Based Grease. Check with EMERSON PROCESS

MANAGEMENT for high and low temperature applications.

10.1 Pinion assembly

1 Lightly grease all ‘O’ Rings, ‘O’ Ring grooves, bearing grooves

and Pinion.

2 Assemble the Top Pinion Bearing (9) to the Pinion, ensuring that

the recess openings are facing away from the gear form, then
assemble items (8), (17) and (18).

3 Lightly grease the Pinion bores in the Body (11) and insert the

Pinion being careful not to damage the ‘O’ Rings.

4 When the Pinion is in place, install the DURASTRIP Thrust Bear-

ing (5), Thrust Washer (25) and the snap ring (Circlip) (6) into the

narrow groove at the top of the Pinion (ensuring the snap ring ts

properly into the groove).

5 Only open the snap ring (Circlip) enough to just clear the Pinion

diameter as opening too far will damage the snap ring. If damage
occurs replace with a new part.

IMPORTANT: The snap ring (Circlip) has one side with bevelled

edges which must go DOWN onto the Thrust Washer (25); the

square edge side must face UPWARDS.

10.2 Alignment of pinion for correct piston assembly.

Standard rotation is clockwise with the Pistons moving towards each

other (When viewed from above the slot at the top of the Pinion, see

Fig. 6).

1

2/3

4

5

6

7

1

2/3

4

5

6

4

4

End cap disassembly steps

XL26 to XL681

End cap disassembly steps

XL1127 to XL4581

Extractor rods

Extractor
plates

Hold nuts
Adjusting nut

Fig. 5 End Cap Disassembly

Page 6

Hytork XL

Installation Operation & Maintenance Instructions

MAC050515 EN Rev. C

May 2016

10.3 Piston assembly

10.3.1 Clockwise rotation
(Pistons moving inwards, Fig. 6).

18 Holding the SAFEKEY close to the entry hole (cast identity letter

C or D) to prevent kinking, insert the SAFEKEY into the hole and
gently push into place.

19 With the SAFEKEY Head in contact with the Body, tighten with a

screw driver to gently compress the ‘O’ Ring and create a pres­sure seal.

20 Repeat the operation for the other End Cap. With the Pistons

together, mount the Position Indicator (7) to the top of the Pinion.

10.6 Spring Return Actuators

10.6.1 Spring set adjustments

The actual selection of the correct spring set can be done by either

referring to the torque charts given in the literature on Spring Return

Actuators or by consulting your local HYTORK representative. After

selecting the appropriate spring set arrange the springs as indicated

bellow.

Table 4 Spring Rating Chart

Spring set Side of actuator Outer Inner

S40

Left S20

Right S20

S50

Left S30

Right S20

S60

Left S30

Right S30

S70

Left S20 S20

Right S30

S80

Left S20 S20

Right S20 S20

S90

Left S30 S20

Right S20 S20

S1C

Left S30 S20

Right S30 S20

Spring Colour Coding

S20 Inner = Green

S20 Outer = Pink

S30 Outer = Brown

10.6.2 Installing the Springs.

1 - For XL 1127 to XL4581 place the Retractor plate on top of the

piston.

2 Insert the Springs (26/27) into the face of the Piston and then the

End Cap onto the Springs.

3 Pass the correct HYTORK Retractor Rod through the End Cap

(Fig.6) and screw it into

- For XL 26 to XL681 the Pistons (20)

- For XL 1127 to XL4581 the Retractor plate.
4 Line up the End Cap so that the safety symbol is correctly posi-

tioned for easy reading.

5 Prevent the “hold-nuts “ to rotate by one wrench. Use another

wrench, to screw the adjusting nut on the HYTORK Retractor
Rod in until the End Cap is completely engaged in the Body.

6 It will be necessary to push the End Cap into the Body to over-

come the ‘O’ Ring compression.

7 When the End Caps are in place and the SAFEKEYS tted

correctly, remove the HYTORK Retractor Rods and replace the
Sealing Bolts (28) and seals (29).

Piston assembly for

“Standard” operation

Pinion dot

One body dot for

standard mode

Piston assembly for

“Reverse” operation

Two body dots

for reverse

mode

Pinion dot

Fig. 6 Pinion alignment

6 Align the Pinion by lining up the center of the NAMUR slot in the

top of the Pinion with the single dot on the Body. The top of the

Pinion is marked with a single identication dot to indicate the

correct orientation of the stop faces.

7 Lightly grease all Piston grooves, gear form and Piston ‘O’ Rings

(4) and t the ‘O’ Ring (4) and Wear Ring (3) to the Piston.

8 Fit the Bearing Block (10) to the back of the Piston.
9 Grease the Actuator body bore.
10 Insert the Pistons into the bore, ensuring the piston racks line

up with the pinion gear. (The part number in the front face of the
Piston must be lined up parallel to the Pinion).

11 Push both Pistons together until they are both in contact with the

Pinion, so that when the Pinion is rotated clockwise the Pistons
are drawn together. When the Pistons are together and the racks

are correctly engaged with the Pinion, the top Pinion drive ats

should be at right angles to the axis of the Body.

10.3.2 Counter-Clockwise rotation (Pistons moving inwards,
Fig. 7).

12 Align the NAMUR slot in the top of the Pinion with the two dots

on the Body and assemble the pistons so that the Pinion rotates
anti-clockwise as the Pistons are drawn together.

10.4 Travel stop assembly
(See Fig. 1).

13 With the Pistons together, screw in the CLOSING (cast identity

number 2) Travel Stop (22), complete with Locking Nut (24) and
Thread Seal (23), until it comes into contact with the Pinion stop
face.

14 Rotate the Pinion through 90ø only, driving the Pistons apart and

screw in the OPENING (cast identity number 1) Travel Stop (22),
complete with Locking Nut and Thread Seal, until it comes into
contact with the pinion stop face.

For individual position requirements see chapter 4.

10.5 End cap assembly on double acting actuators.

15 Install the SAFEKEY ‘O’ Ring seals (12) to the SAFEKEY heads

(13).

16 Lightly grease the End Cap ‘O’ rings (2), the End Cap grooves

and the ends of the Body bore.

17 Taking one of the End Caps install its ‘O’ Ring and insert it into

the Body.

Installation Operation & Maintenance Instructions

Hytork XL

Page 7

MAC050515 EN Rev. C
May 2016

Length

Diameter

Length

Thread

Table 5 SAFEKEY Dimensions

Model (in mm) (in inches) Thread Length

Length Diam. Length Diam. mm. inch)

XL26 157 3.175 6.18 0.125 1/4-20 UNC 215 8.46

XL71 217 3.175 8.54 0.125 1/4-20 UNC 215 8.46

XL131 267 3.175 10.51 0.125 1/4-20 UNC 215 8.46

XL186 282 3.175 11.1 0.125 1/4-20 UNC 215 8.46

XL221 317 3.175 12.48 0.125 5/16-18UNC 225 8.86

XL281 367 3.175 14.45 0.125 M10 210 8.27

XL426 377 3.175 14.84 0.125 M8 278 10.94

XL681 437 3.175 17.2 0.125 M12 363 14.29

XL1127 517 3.175 20.35 0.125 M12 416 16.38

XL1372 572 3.175 22.52 0.125 M12 416 16.38

XL2856 707 3.175 27.83 0.125 M20 500 19.69

XL4581 937 4.978 36.89 0.196 M20 600 23.62

Length tolerance : 0 to +5mm / 0” to 0,197”

Diameter tolerance : ±0.05mm / ±0.002”

Figure 7 SAFEKEY Dimensions Figure 8 Retractor Rod Dimensions

Length tolerance : 0 to +1mm / 0” to 0.04”

11 Testing the HYTORK Actuator

Using compressed air at 80-100 psi (5.5 - 7 bar) check the seal

areas with soapy water, ensuring there are no leaks and that the

Pinion rotates smoothly over its full travel.

11.1 Testing and Cycling of Infrequently Used or Stored
Actuators

Actuators not in current use (i.e. Actuators in storage or stock and/

or not operated for at least a 3 month period), should be cycled a

minimum of ten times and tested against the possible ‘pre-set’ of

the seals. This is a safety precaution recommended by the Seal

manufacturers.

12 Retractor Rods

12.1 Spring Removal System Board.

HYTORK’S “SPRING REMOVAL SYSTEM BOARD” contains a full

set of Retractor Rods so that any size of Actuator can be disas-

sembled on site.

Standard spare parts kits for XL26 to 221 contain the required Re-

tractor Rods. For XL281 to XL4581 seperate Retractor Rod kits are

available. These Rods are not included in the spare parts kits but are

seperately available.

Ask your local HYTORK representative or Stocking Distributor of

HYTORK Products for details.

IMPORTANT:

- The HYTORK Retractor Rod tools are specially designed for

the safe removal of the Spring Return End Cap modules. Only

HYTORK manufactured or approved rods are to be used for

Spring End Cap removal.

- As with any threaded tool that is used frequently, Retractor

Rods should be checked to ensure that the threads are not

worn or damaged in any way and greased regularly. Any dam-

aged or worn Rods must not be used and must be destroyed.

- RetractorRodsmustbemadetothedesignspecicationfor

safety reasons. EMERSON PROCESS MANAGEMENT can not

take any responsibility for any other design.

13 Service

It is the policy of Emerson Process Management to give the best

possible service to our customers. We are happy to assist you in any

way we can and if you have any questions about HYTORK Actuators

or other HYTORK Products please do not hesitate to contact any

Valve Automation Center of Emerson Process Management or your

local HYTORK Stocking Distributor.

www.Hytork.com

Please visit our website for up to date product data: www.Hytork.com

All rights reserved.
No part of this publication may be copied or published by means of printing,

photocopying, microlm or otherwise without prior written consent of Emerson

Process Management. This restriction also applies to the corresponding draw­ings and diagrams.
Emerson Process Management has the right to change parts of the machine at
any time without prior or direct notice to the client. The contents of this publica­tion are subject to change without notice.
This publication is to be used for the standard version of the machine only. Thus
Emerson Process Management cannot be held responsible for any damage
resulting from the application of this publication to the version actually delivered
to you.
For extra information as to adjustments, maintenance and repair, contact the
technical department of your supplier.
This publication has been written with great care. However, Emerson Process
Management cannot be held responsible, either for any errors occurring in this
publication or for their consequences.
©2016 Emerson Electric Co.

Contact Us: Emerson Process Management, Valve Automation facilities at your nearest location:

North & South America

19200 Northwest Freeway
Houston, TX 77065, USA
T [phone]
F [phone]

2500 Park Avenue West

Manseld, OH 44906

USA
T [phone]
F [phone]

13840 Pike Road
Missouri City, Texas 77489
USA
T [phone]
F [phone]

Av. Hollingsworth,
325, Iporanga Sorocaba,
SP 18087-105
Brazil
T [phone]
F [phone]

Middle East & Africa

P. O. Box 17033
Dubai
United Arab Emirates
T [phone]
F [phone]

P. O. Box 105958
Abu Dhabi
United Arab Emirates
T [phone]
F [phone]

P. O. Box 3911
Al Khobar 31952
Saudi Arabia
T [phone]
F [phone]

P. O. Box 10305
Jubail 31961
Saudi Arabia
T [phone]
F [phone]

P. O. Box 32281
Doha
Qatar
T [phone]
F [phone]

24 Angus Crescent
Longmeadow Business Estate
East P.O. Box 6908; Greenstone;
1616 Modderfontein, Extension 5
South Africa
T [phone]
F [phone]

Europe

Berenyi u. 72- 100
Videoton Industry Park,
Building #230
Székesfehérvár 8000
Hungary
T [phone]
F [phone]

Siemensring 112
47877 Willich
Germany
T [phone]
F [phone]

25, Rue de Villeneuve
Silic – BP 40434
94583 Rungis
France
T [phone]
F [phone]

Via Montello 71/73
20038 Seregno (Milan)
Italy
T [phone]
F [phone]

6 Bracken Hill
South West Industrial Estate
Peterlee SR8 2LS
United Kingdom
T [phone]
F [phone]

2A Szturmowa Str
02-678 Warsaw
Poland
T [phone]
F [phone]

C/ Francisco Gervás, 1
28108 Alcobendas – Madrid
Spain
T [phone]
F [phone]

Letnikovskaya Str. 10-2
115114 Moscow
Russia and FSU
T [phone]
F [phone]

Asia Pacic

No. 9 Gul Road
#01-02 Singapore 629361
T [phone]
F [phone]

9/F Gateway Building
No. 10 Ya Bao Road
Chaoyang District
Beijing 100020
P.R.China
T [phone]
F [phone]

No.1 Lai Yuan Road
Wuqing Development Area
Tianjin 301700
P.R.China
T [phone]
F [phone]

Lot 13112, Mukim Labu
Kawasan Perindustrian Nilai
71807 Nilai, Negeri Sembilan
Malaysia
T [phone]
F [phone]

471 Mountain Highway
Bayswater, Victoria 3153
Australia
T [phone]
F [phone]

Delphi B Wing, 601 & 602
6th Floor, Central Avenue
Powai, Mumbai – 400 076
India
T [phone]
F [phone]

NOF, Shinagawa Konan Bldg
1-2-5, Higashi-shinagwa
Shinagwa-ku, Tokyo
140-0002 Japan
T [phone]
F [phone]