Flowserve 132000 LinedFlow Linear Lined Globe Control Valve IOM - Manual (Page 12)

®
User Instructions LinedFlow - KMENIM3202-02 01/12
12
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22 TROUBLE-SHOOTINg cHaRT
Fault Possible cause Remedy
Stem motion
impeded
1.
2.
3.
4.
Packing excessively tightened
Operating temperature too high for selected
trim
Supply pressure inadiquate
Positioner defective
1.
2.
3.
4.
Tighten gland nut
Note operating data and contact dealer
Check system for leaks in the supply pressure or signal lines. Re-
tighten the connections, if necessary replace leaky lines
See operating instructions for positioner
Excessive
leakage
1.
2.
3.
4.
5.
6.
7. Bonnet loose
Worn or damaged seat ring/plug
Gaskets damaged
Inadiquate actuator thrust
Plug incorrectly adjusted
Incorrect direction of flow
Handwheel incorrectly adjusted
(acts like end stop) 1.
2.
3.
4.
5.
6.
7. See step 20.2.7 for correct tightening of bonnet
Re-machine or replace seat ring/plug
Replace gaskets
Check air feed. If air feed is OK, contact dealer.
Correctly adjust plug according to step
Check specification. Contact dealer
Adjust handwheel
Inadiquate flow 1.
2.
3. Plug incorrectly adjusted (short stroke)
Positioner defective
Operating requirements too high 1.
2.
3. Correctly adjust plug
See operating instructions for positioner
Check operating data. Contact dealer
Plug slams 1.
2.
3. Plug adjustment incorrect
Inadiquate supply pressure
Trim too large for flow rate 1.
2.
3. Correctly adjust plug
Check supply pressure, seal leaks, remove blockage
Replace trim
germany
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45145 Essen
Deutschland
Tel.: +49 (0)201 8919 5
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Flowserve corporation
1300 Parkway View Drive
Pittsburgh, PA 15205
USA
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Fax: +1 412 787 1944
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Singapore, 638824
Singapore
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