SPX FLOW W63 - Troubleshooting Guide; Leakage, Operation, and Electrical Issues

Waukesha Cherry-Burrell Brand W60/W80 Valves Troubleshooting
08/2018 95-03022 Page 87
Troubleshooting
PROBLEM POSSIBLE CAUSE SUGGESTED ACTION
Leakage
Leakage from inside port with
valve closed
Seat ring failure Replace seat rings.
Debris trapped in valve seats Remove valve from service.
Inspect and replace seat as needed.
Seat ring not on valve body seat Check actuator for function.
Stem loose Tighten actuator stems. Tighten valve
stem to actuator stem in yoke.
Actuator loose at adapter Turn actuator to tighten when valve is
open (W61,W63) or partly open (W62,
W65).
Leakage around yoke Internal stem adapter o-ring failure Replace o-ring.
External body adapter o-ring
failure
Replace o-ring.
Operation
Valve fails to open Air pressure too low For 4” (101 mm), 5” (127 mm) and 6”
(152 mm) light spring actuators, set air
pressure to 60 psi (4 bar).
For 6” (152 mm) standard spring
actuators,
set air pressure to 80 psi (6 bar).
Control failure Check control sequence.
Check control wiring and power source.
Valve fails to close Control failure Check control sequence.
Check air supply.
Check for loose stems.
Check control wiring and power source.
Debris trapped in valve seat Remove valve from service.
Inspect and replace seat as needed.
Actuator moves when valve
opens
Clamp loose Tighten clamp with valve open.
Yoke loose Tighten yoke to adapter by turning
actuator.
Slow valve operation Air not exhausting fast enough Install quick exhaust.
Move solenoid closer to valve or install
in control top.
Valve not opening fast enough Use a bigger diameter air line.
Electrical
For control top information, please refer to publication 95-03083. For additional product information, please
see our web site at www.spxflow.com/en/waukesha-cherry-burrell/resources/product-literature.