Flowserve 051 000 User Manual

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Flow Control
Kämmer Control Valves
®
Installation, Operation, Maintenance Instructions
Tank Flush Valve
Series 051 000, without bellows seal
KMEIM5100-00 02.05
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USING KÄMMER VALVES AND ACTUATORS 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: In most cases Kämmer valves and actuators
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: indicates that death, severe personal injury
and/or substantial property damage will occur if proper precautions are not taken.
WARNING: indicates that death, severe personal injury
and/or substantial property damage can occur if proper precautions are not taken.
CAUTION: indicates that minor personal injury and/or
property damage can occur if proper precautions are not taken.
NOTE: indicates and provides additional technical
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, dang­erous, 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: Before installation check the order-no,
serial-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.
STOP!
Index
1 Using Kämmer valves and actuators correctly. 2 Unpacking 3 Installation 4 Quick check 5 Maintenance 6 Remove and install actuator 7 Disassemble and assemble valve 8 Trouble-shooting chart
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Flow Control
Kämmer Control Valves
®
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: If slings are used, be aware that the centre of gravity of the valve may be above the lifting 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 low-temperature 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
provided 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 (see following table).
3.4 If the valve is to be welded into the line, make sure that the valve is shielded from excessive heat.
3.5 Connect supply pressure and signal lines. Control valves are supplied with a positioner. The end con­nections for supply pressure and signal are clearly marked. Actuator and positioner 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.
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: Before products are returned to Kämmer
for repair or service Kämmer must be provided with a certificate which confirms that the product has been 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 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.
STOP!
STOP!
Actuator Clearance Actuator Clearance size (mm) size (mm)
37/47 95 P2 140 38/48 140 P3 140 39/49 140 P4 140 39D/49D 140 P5 140
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Flow Control
Kämmer Control Valves
®
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 (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).
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 function 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.
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 valves and repaint as necessary.
Warning: To prevent a buildup of electrostatic charge
clean the actuator/valve with a damp cloth only.
5.5 Check gland nut for correct torque (see table 1).
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.
NOTE: With graphite packing, irregular movement of
the plug stem is normal.
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.
5.10 Check stem boot (when fitted) for wear.
5.11 Check actuator for leaks. To do this, spray housing, air connections and plug stem guide with leak spray and check for any bubble formation.
5.12 Clean plug stem.
5.13 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.
Table 1: Standard torque values for gland nut
STOP!
STOP!
Thread
Stem Ø
(mm)
Torque in Nm
PTFE Graphit
M20 x 1,5 6 2,5 6,0 M30 x 1,5 10 7,0 15,5 M38 x 1,5 16 17,0 38,0 M45 x 1,5 16 19,0 48,0
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Flow Control
Kämmer Control Valves
®
Coupling
Coupling screws
Coupling insert
Locknut
Yoke plate
Yoke nuts
Actuator series 2
Fig. 1a
Zero adjustment locknut
Actuator stem
Travel indicator
Yoke plate
Yoke nuts
Cap
Locknuts Gland nut Clamping nut
Plug stem
Actuator series 4
Fig. 1
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Flow Control
Kämmer Control Valves
®
6 REMOVE AND INSTALL ACTUATOR
General Information
We recommend separating the actuator from the valve
during all repair work. However, many maintenance and adjusting operations can be carried out in an installed condition.
6.1 Remove series 4 actuator
(see Fig 1) To remove series 2 actuator see 6.3
6.1.1 Shut off air supply. DANGER: Depressurise the line to atmospheric
pressure and drain all fluids from the valve before working on the actuator. Failure to do so can cause serious injury.
6.1.2 As required remove any outside tubing.
6.1.3 Remove cap and nameplate. Tighten zero adjusting nut until it just touches the surface of the spring housing. This relieves the plug from actuator spring pressure. If the actuator is fitted with a handwheel this can be used to relieve the plug from actuator spring pressure.
6.1.4 Using a wrench, secure the actuator stem against turning and using a second wrench loosen the stem locknuts. If the actuator is fitted with a coupling refer to the procedure described in the maintenance instruc­tions for the I/P actuator.
NOTE: the actuator stem must not be rotated, as this
will cause damage to the diaphragm.
6.1.5 Loosen gland and clamp nuts.
6.1.6 Secure plug stem against turning and unscrew actuator from plug stem by rotating counter-clockwise.
NOTE: Ensure that the plug assembly is not rotated with
the plug seated. This may cause irreparable damage to the seating faces.
6.1.7 Remove actuator and remove at the same time locknut, travel indicator disc, gland nut and clamp nut.
6.2 Install series 4 actuator
Information:
• Before the actuator is installed, it must be calibrated according to section 8 of the instructions „Pneumatic and Electro-pneumatic Actuators“.
• All worn or damaged parts must be replaced. Reus­able parts must be clean.
6.2.1 Position actuator with clamp nut, gland nut, locknuts and travel indicator disc on the valve.
6.2.2.1 Only for „spring-to-close“ valves:
Screw actuator onto plug stem by rotating clockwise,
until the yoke plate just touches the valve housing and the actuator is aligned forward. If the actuator is fitted with a coupling refer to the procedure described in the maintenance instructions for the I/P actuator.
NOTE: Ensure that the plug assembly is not rotated
with the plug seated. This may cause irreparable dam­age to the seating faces.
6.2.2.2 Only for „spring-to-open“ valves: Lift plug stem and screw it into the lower coupling half
until the distance between „plug in seat“ and „plug raised“ approximately corresponds to the specified stroke.
6.2.3 Tighten clamp nut and gland nut.
6.2.4 Adjust seat tightness by screwing/unscrewing the plug stem in/out of the actuator stem.
NOTE: Ensure that the plug assembly is not rotated
with the plug seated. This may cause irreparable dam­age to the seating faces. Open valve, make adjustment, close valve and check for leaks. If the valve is fitted with a bellows seal the plug stem may NOT be rotated at all. In the case of a bellows seal adjustments are made with the coupling.
6.2.5 After adjusting, secure the locknuts and the travel indicator disc lying between them against actuator stem and align the travel indicator on the yoke rod.
6.3 Remove series 2 actuator
(see Fig. 1a) For series 4 actuator see 6.1
6.3.1 Shut off air supply.
DANGER: Depressurise the line to atmospheric
pressure and drain all fluids from the valve before working on the actuator. Failure to do so can cause serious injury.
6.3.2 Disconnect all tubing.
6.3.3 Remove 2 screws and remove coupling.
6.3.4 Remove yoke rod retaining nuts and lift actuator assembly from the valve.
6.3.5 Remove coupling insert and it’s locknut from plug stem.
NOTE: Ensure that the plug assembly is not rotated
with the plug seated. This may cause irreparable damage to the seating faces.
6.4 Install series 2 actuator
(see Fig. 1a)
The actuator stem must be fully extended: Actuators with air-to-open action must be fully
vented. Actuators with air-to-close action apply supply pressure.
Manually depress the plug stem to ensure the plug
is fully seated.
6.4.1 Screw coupling insert locknut and coupling insert as far as possible onto plug stem.
6.4.2 Place the actuator assembly on the valve engaging the yoke rod threads in the lower yoke plate and ensuring the actuator faces in the correct direction.
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Flow Control
Kämmer Control Valves
®
Fig. 2
Stem/plug
Seat ring
Gasket
Valve body
Bushing
Packing
Slotted nut
Gland nut
Locknut
Drip protection
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Flow Control
Kämmer Control Valves
®
6.4.3 Unscrew the coupling insert until the yoke rods are raised from the lower yoke plate by around 2 mm.
NOTE: Ensure that the plug assembly is not rotated
with the plug seated. This may cause irreparable damage to the seating faces.
6.4.4 Refit the coupling, ensuring that the arrows em­bossed on the coupling halves, point upward towards the actuator and secure with 2 retaining screws.
6.4.5 Apply supply pressure resp. vent actuator to half stroke and refit and tighten yoke rod retaining nuts (15).
6.4.6 Connect all tubing.
7 DISASSEMBLE AND ASSEMBLE VALVE
7.1 Disassemble Valve
(see Fig. 2)
7.1.1 Remove actuator from the valve (section 3)
NOTE: heavy assemblies may require a hoist
7.1.2 For a tank valve with an extending plug ( plug opens into the vessel ), the plug needs to be removed before the seat ring can be removed.
7.1.3 For complete maintenance the valve must be removed from the tank because the seat ring serves also as the flange facing for the flange connection. Remove the valve from the tank. Remove the locknut and drip protection. Unscrew the gland nut. Extract the plug carefully from the valve.
NOTE: If the seat ring is not secured with a retaining
screw it might also detach from the valve body when the plug is removed.
7.1.3 Check seating faces of seat ring and plug for damage. Gasket surfaces must be clean and free of damage.
7.1.4 Remove the packing follower, packing and guide using a drift.
7.1.5 If a seat surfaces require re-machining, seat and plug seating surfaces must be reworked. The seat angle on the plug is 30°, on the seat ring 25°. If the valve is correctly assembled, lapping is not required.
NOTE: When re-machining the plug, protect plug stem
from damage. The seat surface must be concentric to the plug stem. When re-finishing the seat, the seat surface must be concentric to the seat outer diam­eter.
7.2 Assemble Valve (see Fig. 2)
7.2.1 All worn or damaged parts must be replaced. Reus­able parts must be clean. Expendable parts such as gaskets, packing and O-rings should always be renewed.
7.2.2 Replace the bushing.
Extending plug
7.2.3 Fit new gasket and replace the seat ring. If a retaining screw is provided, tighten this screw to secure the seat ring in position.
7.2.3.1 Insert the plug stem through the seat ring into the valve. Be careful not to damage the guide bushing.
Retracting plug
7.2.4 Insert the plug stem into the valve. Be careful not to damage the guide bushing.
7.2.4.1 Fit new gasket and replace the seat ring. If a retaining screw is provided, tighten this screw to secure the seat ring in position.
7.2.5 Replace slotted nut. Replace packing by inserting the packing rings one at a time tapping each one down with a suitable bushing.
NOTE: ensure that the gaps in the packing rings are
distributed evenly around the circumference of the packing box (gaps not in line).
7.2.6 Insert packing follower. Fit gland nut for transport purposes only. Gland nut to be fitted correctly and tightened down (see table 1) when actuator is mounted. Replace the locknut and drip protection.
7.2.7 Refit the actuator (see section 6.2 and 6.4).
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Flow Control
Kämmer Control Valves
®
8 Trouble-shooting Chart
All data subject to change without notice
©09.2003 Flowserve Corporation. Flowserve and Kämmer are trademarks of Flowserve Corporation
Fault Possible Cause Remedy
Stem motion 1. Packing excessively tightened 1. Tighten gland nut slightly more than „finger-tight“ impeded 2. Operating temperature too 2. Note operating data and contact dealer high for selected trim
3. Supply pressure inadiquate 3. Check system for leaks in the supply pressure or signal lines. Re- tighten the connections, if necessary replace leaky lines
4. Positioner defective 4. See operating instructions for positioner
Excessive 1. Worn or damaged 1. Re-machine or replace seat ring/plug. leakage seat ring/plug
2. Inadiquate actuator thrust 2. Check air feed. If air feed is OK, contact dealer.
3. Plug incorrectly adjusted 3. Correctly adjust plug according to step 6.2.4
4. Incorrect direction of flow 4. Check specification. Contact dealer
5. Handwheel incorrectly 5. Adjust handwheel adjusted (acts like end stop)
Inadiquate flow 1. Plug incorrectly adjusted 1. Correctly adjust plug according to step 6.2.4 (short stroke)
2. Positioner defective 2. See operating instructions for positioner
3. Operating requirements 3. Check operating data. Contact dealer too high
Plug slams 1. Plug adjustment incorrect 1. Correctly adjust plug according to step 6.2.4
2. Inadiquate supply pressure 2. Check supply pressure, seal leaks, remove blockage
3. Trim too large for 3. Replace trim flow rate
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