SPX APV DELTA SVS1F DN 125, Operating Manual, Page: 17 / 45

12. Spare Parts
(see annex)
11. Trouble Shooting
UK
Butterfly Valve
DELTA SVS1F DN125-250
Operating Manual rev.2
Trouble Remedy
Valve is untight Replace seal ring (6),
check line pressure.
Housing in the flange area is untight Replace flange seal (4).
Spindle passage at housing is untight Replace seal ring (6) and
bush bearings (5).
Air escapes from the air connection Fasten or replace air connection
at the pneumatic actuator.
Actuator does not work,
air escapes permanently from
the vent bore
Replace pneumatic actuator.
12