Flowserve 025000 Series - Manual (Page 10)

10
Flow Control Division
Kammer Control Valves
11.00
Trouble-shooting Chart
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. body halves loose 1. See step 4.2.5 for correct tightening of body halves.
leakage 2. Worn or damaged 2. Re-machine or replace seat ring/plug.
seat ring/plug
3. Gaskets damaged
3. Replace gaskets
4. Inadiquate actuator thrust 4. Check air feed. If air feed is OK, contact dealer.
5. Plug incorrectly adjusted 5. Correctly adjust plug according to step 3.2.4
6. Incorrect direction of flow 6. Check specification. Contact dealer
7. Handwheel incorrectly 7. Adjust handwheel
adjusted (acts like end stop)
Inadiquate flow 1. Plug incorrectly adjusted 1. Correctly adjust plug according to step 3.2.4
(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 3.2.4
2. Inadiquate supply pressure 2. Check supply pressure, seal leaks, remove blockage
3. Trim too large for 3. Replace trim
flow rate
Flowserve Essen GmbH
Manderscheidtstrasse 19
D - 45141 ESSEN
Tel.: +49 (0) 201 89 19 - 5 • Fax: +49 (0) 201 89 19 - 600
All data subject to change without notice
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