Flowserve 3 Series P6 User Manual

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Installation, Operation, Maintenance Instructions
Pneumatic Diaphragm On-Off Actuators
Series 3, Type: P6
Flow Control Division
Kammer Control Valves
Index
1 Using Kämmer valves and actuators correctly. 2Unpacking 3 Installation 4 Quick check 5 Maintenance 6 Remove and install actuator 7 Disassemble actuator 8 Assemble actuator 9 Reverse actuator action 10 Troubleshooting chart
CORRECTLY
1.1 General
The following instructions are designed to assist in unpacking, installing and performing maintenance as required on Kämmer products. Product users and maintenance personnel should thoroughly review this bulletin prior to installing, operating or performing any maintenance.
DANGER:
are designed for specific applications (e.g. with regard to medium, pressure, temperature). For this reason they should not be used in other applications without first contacting the manufacturer.
1.2 Terms concerning safety
The safety terms DANGER, WARNING, CAUTION and NOTE are used in these instructions to highlight
particular dangers and/or to provide additional infor­mation on aspects that may not be readily apparent.
DANGER:
and/or substantial property damage will occur if proper precautions are not taken.
WARNING:
STOP!
jury and/or substantial property damage can occur if proper precautions are not taken
CAUTION:
property damage can occur if proper precautions are not taken.
In most cases Kämmer valves and actuators
indicates that death, severe personal injury
indicates that death, severe personal in-
.
indicates that minor personal injury and/or
NOTE:
information, which may not be very obvious even to qualified personnel.
Compliance with other, not particularly emphasised notes, with regard to transport, assembly, operation and maintenance and with regard to technical docu­mentation (e.g. in the operating instruction, product documentation or on the product itself) is essential, in order to avoid faults, which in themselves might directly or indirectly cause severe personal injury or property damage.
1.3 Protective clothing
Kämmer products are often used in problematic ap­plications (e.g. extremely high pressures, dang-erous, toxic or corrosive mediums). In particular valves with bellows seals point to such applications. When per­forming service, inspection or repair operations al­ways ensure, that the valve and actuator are depres­surised and that the valve has been cleaned and is free from harmful substances. In such cases pay particu­lar attention to personal protection (protective cloth­ing, gloves, glasses etc.).
1.4 Qualified personnel
Qualified personnel are people who, on account of their training, experience and instruction and their knowledge of relevant standards, specifications, acci­dent prevention regulations and operating condi­tions, have been authorised by those responsible for the safety of the plant to perform the necessary work and who can recognise and avoid possible dangers.
1.5 Installation
DANGER:
rial-no. and/or the tag-no. to ensure that the valve/ actuator is correct for the intended application.
Do not insulate extensions that are provided for hot or cold services.
Pipelines must be correctly aligned to ensure that the valve is not fitted under tension.
indicates and provides additional technical
Before installation check the order-no, se-
KMEIM0004-00 - 08.03
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Flow Control Division
Kammer Control Valves
1.6 Spare parts
Use only Kämmer original spare parts. Kämmer can­not accept responsibility for any damages that occur from using spare parts or fastening materials from other manufactures. If Kämmer products (especially sealing materials) have been on store for longer periods check these for corrosion or deterior-ation before using these products. Fire protection for Kämmer products must be provided by the end user.
1.7 Service / repair
To avoid possible injury to personnel or damage to products, safety terms must be strictly adhered to. Modifying this product, substituting nonfactory parts, or using maintenance procedures other than outlined in this instruction could drastically affect perform­ance and be hazardous to personnel and equipment, and may void existing warranties. Between actuator and valve there are moving parts. To avoid injury Flowserve provides pinch-point-protection in the form of cover plates, especially where side-mounted posi­tioners are fitted. If these plates are removed for inspection, service or repair special attention is re­quired. After completing work the cover plates must be refitted. Apart from the operating instructions and the obliga­tory accident prevention directives valid in the country of use, all recognised regulations for safety and good engineering practices must be followed. WARNING:
for repair or service Kämmer must be provided with a
STOP!
certificate which confirms that the product has been
Before products are returned to Kämmer
decontaminated and is clean. Kämmer will not accept deliveries if a certificate has not been provided (a form can be obtained from Kämmer).
1.8 Storage
In most cases Kämmer Products are manufactured from stainless steel. Products not manufactured from stainless steel are provided with an epoxy resin coat­ing. This means that Kämmer products are well pro­tected from corrosion. Nevertheless, Kämmer prod­ucts must be stored adequately in a clean, dry envi­ronment. Plastic caps are fitted to protect the flange faces and to prevent the ingress of foreign materials. These caps should not be removed until the valve is actually mounted into the system.
1.9 Valve and actuator variations
These instructions cannot claim to cover all details of all possible product variations, nor in particular can they provide information for every possible example of installation, operation or maintenance. This means that the instructions normally include only the direc­tions to be followed by qualified personal where the product is being used for is defined purpose. If there are any uncertainties in this respect particularly in the event of missing product-related information, clarifi­cation must be obtained via the appropriate FLOWSERVE sales office.
2 UNPACKING
2.1 Each delivery includes a packing slip. When unpacking, check all delivered valves and accessories using this packing slip.
2.2 Larger valves can be lifted using slings on the yoke rods or, if present, on the lugs provided for this purpose. If slings are used, attach them so that the outer tubing or attaching parts are not damaged.
WARNING:
STOP!
tre of gravity of the valve may be above the lifting
If slings are used, be aware that the cen-
point. In this case, secure or support the valve against rotating, to prevent damage or personnel injury.
2.3 Report transport damage to the carrier immediately.
2.4 In case of discrepancies, contact your nearest FLOWSERVE sales office.
3 INSTALLATION
3.1 Clean tubing prior to installing.
3.2 If possible, install the valve in an upright position (actuator on top), to ease maintenance. An upright installation position is important with low­temperature applications, in order to keep the distance between the packing material and the medium as large as possible. The packing material then retains the ambient temperature as much as possible.
NOTE:
Do not insulate extension bonnets that are pro-
vided for hot or cold services
3.3 Make sure that sufficient overhead clearance above the actuator is maintained, to allow for disassembly of plug from the valve body.
3.4 After installing, check direction of flow again. The direction of flow is shown by the arrow on the housing.
3.5 If the valve is to be welded into the line, make sure that the valve is shielded from excessive heat.
3.6 Connect supply pressure and signal lines. Control valves are supplied with a positioner. The end connections for supply pressure and signal are clearly marked. Series 4 actuators and positioners are suitable for max. 4.2 bar (60 psi) supply pressure. If the supply pressure exceeds the pressure specified on the nameplate, a pressure reducing station is required. If instrument air is not available, install an oil separator/air filter in the air inlet line. All connections must be leak free.
STOP!
WARNING:
Prevent other items of equipment from
making mechanical contact with the actuator housing.
4 QUICK CHECK
Before operating, check the valve as follows:
4.1 Open and close the valve, and observe the movement of the actuator stem. The movement must be smooth and linear.
4.2 Check for maximum stroke through change of signal
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(for pneumatic positioners, 0.2 - 1.0 bar or corresponding split-range values; for IP positioners, 4-20 or 0-20 mA).
4.3 Check all air connections for leaks.
4.4 Tighten packing nut (see table 1).
Torque
Thread PTFE Grafoil M20 x 1,5 1 3
M30 x 1,5 6 15 M38 x 1,5 15 35 M45 x 1,5 17 40
Table 1
NOTE: An excessively tightened gland nut can cause excessive packing wear and can hinder the free move­ment of the plug stem.
4.5 Check fail-safe position. To do this, close supply pressure and observe whether the valve opens or closes as defined.
4.6 After use at fluctuating temperatures, re-tighten all bolt connections and check for leaks.
5 MAINTENANCE
Check valves for correct functioning at regular inter­vals (at least once every 6 months) as follows. This check can be made when installed and in many cases without interrupting production. If internal de­fects are suspected, see section „Disassembly and Assembly of Valve“.
5.1 Examine gaskets for leaks and if necessary re-tighten bolts (see Fig. 1).
5.2 Check bellows gasket and test connection - if present
- for external leaks.
5.3 Check valve for damage caused by corrosive residues or corrosive vapours.
5.4 Clean valve/actuator and repaint as necessary. Warning:
STOP!
clean the actuator/valve with a damp cloth only.
5.5 Check gland nut for correct torque (see table 1).
To prevent a buildup of electrostatic charge
Flow Control Division
Kammer Control Valves
NOTE: With graphite packing, irregular movement of the plug stem is normal.
STOP!
WARNING:
Keep hands, hair, clothing, etc. away from all moving parts. Failure to do so can lead to serious injury.
5.7 Check all accessories for firm seating.
5.8 If possible, close supply pressure and check the fail­safe position.
5.9 Check stem boot for wear.
5.10 Check actuator for leaks. To do this, spray housing, air connections and plug stem guide with leak spray and check for any bubble formation.
5.11 Clean plug stem.
5.12 Check air filter, if present, and if necessary replace insert.
Note:
For further information regarding service and maintenance please contact your nearest FLOWSERVE office.
DANGER:
On actuators with aluminium cases the actuator springs must be renewed with original spare parts every 10 years or after 50.000 operating hours which ever occurs first.
NOTE: An excessively tightened gland nut can cause excessive packing wear and can hinder the free move­ment of the plug stem.
5.6 If possible, open and close valve and check for maximum stroke and smooth movement of the plug stem. Irregular movement of the plug stem may indicate internal defects.
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42 41
Flow Control Division
Kammer Control Valves
40 38 36 35 34 33 32 31
30 29 28
43
39 16 11 37
1 2 3 10
2
4
5 6
7 8 9 10
6
9 11
12
26
25 27
24
1 Pre-tension plate 2 Grooved pin, Ø 5 x 25 3 Diaphragm plate 4 Diaphragm 5 Plate 6 Split ring 7 Ring 8 Ring
9 Back-up ring 10 O-Ring 11 Bushing 12 Diaphragm housing 13 Yoke plate, top 14 Slotted nut
23
27
22 21
15 Yoke rod 16 Wiper ring 17 Screw, NAMUR 18 Yoke plate, lower 19 Spring washer, M16 20 Nut, M16 21 Coupling, kpl. 22 Travel indicator, assy. 23 Nut, M12 24 Actuator stem 26 Screw, M12 x 50 25 Spring housing 27 Vent plug 28 Sleeve
13 14 15 16 17 18 19 20
29 Screw, M5 x 10 30 Nut 31 Spring guide 32 Grooved pin, Ø 6 x 16 33 Guide bushing 34 Plate 35 Washer 36 Screw, M6 x 10 37 Snap ring 38 screw 39 Cap 40 Grooved pin, Ø 5 x 25 41 Threaded insert 42 Eyebolt 43 Spring
Fig. 1: On-Off actuator, Air-to-Open
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Flow Control Division
Kammer Control Valves
6 Service to the actuator is best performed when the actuator is removed from the valve body. For the purpose of these instructions, consider
the actuator as a separate subassembly with the procedures described in these instructions being performed in a designated workplace. However, many service repairs and adjustments can be accomplished in the field while the actuator and valve body are still connected to each other. Attention: The valve trim is a very sensitive assembly, take care not to damage it. Always remove and replace the actuator together with the top yoke plate (13) and yoke rods (15).
6.1 REMOVE ACTUATOR FROM VALVE BODY
(refer to Figs. 1 + 2)
6.1.1 Shut off the air supply.
WARNING:
pressure and drain all fluids from the valve before
STOP!
Depressurise the line to atmospheric
working on the actuator. Failure to do so can cause serious injury.
6.1.2 Remove the coupling (21) from the actuator stem
(24):
Loosen clamping screws (50) and expand the clamping gap as required, apply air to the actuator to move the actuator stem around 5% from it's end position. Screw out the slotted nut (51) and drive the actuator stem out of the coupling (by applying more air on “Air-to-Open” or by venting air on “Air-to-Close”). Remove ring (52), split ring (53) and slotted nut (51).
6.1.3 Attach a crane to the eye bolt (42) to support the actuator and remove the nuts (20) from the yoke rods (15). Vent the actuator.
WARNING:
“Air-to-Open” the actuator stem will extend and raise
STOP!
When the actuator is vented on version
the actuator!
Remove any tubing and raise the actuator from the valve.
6.1.4 Loosen the coupling locknut and unscrew the coupling
24
(21) from the plug stem.
51
50
52
53
54
Fig. 2: Coupling
6.2 CONNECT ACTUATOR TO VALVE BODY
(refer to Figs. 1 + 2)
6.2.1 Screw the coupling (21) onto the plug stem until the stem touches the thrust washer (54).
6.2.2 Mount the actuator onto the valve and secure the yoke rods (15) to the yoke plate (18) using the nuts (20) and lockwashers (19). Connect an air supply to the actuator using a valve that can regulate the air to aerate and vent the actuator.
6.2.3 Fit the slotted nut (51), ring (52) and split rings to the actuator stem (on "Air-to-Open" versions retract the stem by applying air).
6.2.4 Carefully enter the actuator stem into the coupling and screw the slotted nut (51) into the coupling.
6.2.5 Screw the coupling anticlockwise onto the actuator stem to achieve a pretension of 2 to 4 mm ensuring that the NAMUR studs (17) are correctly positioned.
CAUTION:
Ensure that the plug assembly is not rotated with the plug seated. This may cause irreparable dam­age to the seating faces.
6.2.6 Tighten coupling locknut, slotted nut (51) and clamp­ing screws (50).
6.2.7 As required reconnect all tubing.
7 DISASSEMBLE ACTUATOR
(see Fig. 1)
7.1 Disassemble body
7.1.1 Unscrew the 8/10 screws (38), crisscross, and in equal measures until the actuator spring(s) (43) are fully decompressed and the plate (34) is loose.
7.1.2 Remove plate (34), spring(s) (43) and spring guide (31).
7.1.3 Loosen and remove the 24 flange screws/nuts (26/23).
7.1.4 Reattach the plate (34) to the spring housing (25). With suitable lifting equipment attached to the eyebolt (42) remove the spring housing (25).
7.1.5 Remove the actuator stem (24) complete with dia­phragm: lifting equipment can be used if an eyebolt is fitted to the top of the actuator stem.
7.2 Disassemble diaphragm
7.2.1 Clamp the actuator stem below the diaphragm in a vice (protect the stem against surface damage).
7.2.2 Loosen the lockscrew (29) and screw the nut (30) clockwise onto the sleeve (28) (secure the sleeve from rotating with a wrench across the flats on the lower portion of the sleeve), until the split ring (6) can be removed.
7.2.3 Remove sleeve (28), diaphragm plate (3), diaphragm (4), plate (5) and split ring (6).
7.3 Disassemble actuator stem seal and guide
7.3.1 Diaphragm housing (12)
7.3.1.1 Remove ring (7) and press the calked ring (8) out to the top.
7.3.1.2 Remove the seal kit consisting of backup rings (9) and O-ring (10).
7.3.1.3 Remove wiper ring (16) and bushing (11).
7.3.2 Guide bushing (33)
2.3.2.1 Remove wiper ring (16) and bushing (11).
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42 41
Flow Control Division
Kammer Control Valves
40 38 36 35 34 33 32 31
30 29 28
43
39 16 11 37
1 2 3 10
2
4
5 6
7 8 9 10
6
9 11
12
26
25 27
24
1 Pre-tension plate 2 Grooved pin, Ø 5 x 25 3 Diaphragm plate 4 Diaphragm 5 Plate 6 Split ring 7 Ring 8 Ring
9 Back-up ring 10 O-Ring 11 Bushing 12 Diaphragm housing 13 Yoke plate, top 14 Slotted nut
23
27
22 21
15 Yoke rod 16 Wiper ring 17 Screw, NAMUR 18 Yoke plate, lower 19 Spring washer, M16 20 Nut, M16 21 Coupling, kpl. 22 Travel indicator, assy. 23 Nut, M12 24 Actuator stem 26 Screw, M12 x 50 25 Spring housing 27 Vent plug 28 Sleeve
13 14 15 16 17 18 19 20
29 Screw, M5 x 10 30 Nut 31 Spring guide 32 Grooved pin, Ø 6 x 16 33 Guide bushing 34 Plate 35 Washer 36 Screw, M6 x 10 37 Snap ring 38 screw 39 Cap 40 Grooved pin, Ø 5 x 25 41 Threaded insert 42 Eyebolt 43 Spring
Fig. 1: On-Off actuator, Air-to-Open
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Flow Control Division
Kammer Control Valves
8 ASSEMBLE THE ACTUATOR
(see Figs. 1 + 2)
8.1 Assemble diaphragm housing
8.1.1 Fit bushing (11) and wiper ring (16) to diaphragm housing.
8.1.2 Enter backup ring (9), O-ring (10) and backup ring (9) from the other side.
8.1.3 Fit the ring (8) and calk in three positions.
8.2 Assemble guide bushing (33)
8.2.1 Fit bushing (11) and wiper ring (16).
8.3 Assemble diaphragm
8.3.1 Clamp the actuator stem in a vice (protect the stem against surface damage).
8.3.2 Fit the split rings (6) in the groove in the actuator stem and place the plate (5) on top.
8.3.3 Fit the diaphragm (4) on top of the plate (5) ensuring that the inner bead sits correctly in the groove ma­chined into the plate (5)
8.3.4 Place the O-ring (10) over the actuator stem until it sits in the plate (5).
8.3.5 Place the diaphragm plate (3) over the actuator stem (24) onto the diaphragm (4).
8.3.6 Place the sleeve (28) over the actuator stem. Screw the nut (30) onto the sleeve (28) until the split ring (6) can be fitted into the groove in the actuator stem. Rotate the nut (30) anticlockwise to clamp the diaphragm and torque the nut to the value shown in table 1. Tighten the locking screw (29).
8.4 Assemble actuator
8.4.1 Place the ring (7) in the centre of the diaphragm housing (12).
8.4.2 Fit the actuator stem assembly to the diaphragm hous­ing (12) ensuring the that outer bead of the diaphragm sits correctly.
8.4.3 Replace Spring housing (25) and secure with 24 screws/ nuts (26/23) (torque values see table 1).
8.4.4 Replace spring guide (31) (if used). Replace spring(s) (43) ensuring they are situated correctly within the rollpins (2).
8.4.5 Place the plate (34), complete with cap (39) and guide bushing (33), onto the springs and tighten the 8/10 screws (38), crisscross, and in equal measures until the plate contacts the spring housing (torque values see table 1).
WARNING:
STOP!
time. Grease the screws before fitting.
NEW SCREWS (38) must be used EVERY
9. REVERSE ACTUATOR ACTION
9.1 Remove cap (39), threaded insert (41) and eyebolt (42) and refit to the reverse side.
Fastener Pos.
Torque value
Flange screws/nuts 26, 23 60 Nm Screws 38 22 Nm max.* Nut 30 190 Nm
Table 1: Torque values
* Torque value for strongest spring set
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10 Troubleshooting chart
Problem Possible cause Corrective Action
Stem pulsates 1. Unstable air supply 2. Adjust air supply
2. Vent or passage blocked 3. Clean vent or passage
Actuator slow 1. Air supply too low 1. Adjust air supply
2. Diaphram case leaks air 2. Seal diaphram case
3. Spring case vent blocked 3. Renew vent
Actuator will not 1. Air supply too low 1. Adjust air supply return to end 2. Broken actuator spring 2. Renew all actuator springs position 3. Actuator movement blocked 3. Dissassemble actuator and check
Actuator will not 1. Actuator not vented 1. Vent actuator return to the 2. Broken actuator spring 2. Renew all actuator springs failsafe position 3. Actuator movement blocked 3. Dissassemble actuator and check
Flow Control Division
Kammer Control Valves
Regional Headquarters
Flowserve Flowserve Flowserve
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Main Sales Offices (Europa, Middle east, Africa)
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Flowserve Flowserve
Cnr. Bismit and Granier Str. C/O Saleh & Abdulaziz Abahsain Jet Park Ext 3 P.O. Box 209 Boksburg 1459 Gauteng Al Khobar 31952 South Africa Saudi Arabia Telephone: +27 397-3150 Telephone: 9663 857 3442 Facsimile: +27 397-5300/01/02 Facsimile: 9663 859 5284
©04.2002 Flowserve Corporation. Flowserve and Kämmer are trademarks of Flowserve Corporation
All data subject to change without notice
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