Kammer control valves, Trouble-shooting chart – Flowserve 025000 Series User Manual

Page 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