Flowserve Selfacting pressure regulator - Manual (Page 24)

4
4.1 Trouble shooting
Defect No. Possible cause Remedy
Spindle does not move
1.1
1.2
• no aux. energy supply to
membrane actuator
• valve trim worn, stuck
• check supply line for leaks
check pressure
• contact customer services department or
contract partner
Jolting spindle movement
2.1 • damaged spindle • contact customer services department or
contract partner
Spindle travel less than full
stroke
(O to 100% stroke)
3.1 • foreign particles in valve seat,
damaged trim
• contact customer services department or
contract partner
Excessive valve seat leakage
4.1
4.2
• damaged sealing edges at valve
seat or plug
• foreign particles in seat area
• contact customer services department or
contract partner
• contact customer services department or
contract partner
Leaking stuffing box system
5.1 • bellows defective • contact customer services department or
contract partner
Leaking top or lid seal
6.1 • seal defective • contact customer services department or
contract partner
Leaking housing 7.1
• medium- or flow-related damage
• contact customer services department or
contract partner
Leaking membrane actuator 8.1 • actuator membrane defective • contact customer services department or
contract partner
If the problem is not solved by taking the above measures, contact the customer services
department or contract partner.
Service hotline Austria: Service hotline Germany:
+43 (0)664 341 8 616 +49 (0)2157-8176-29 or +49 (0)163-8176-014
EN