Instruction Manual
Replace friction lock on the valve body, therefore loose it with a screw driver.
Push the new one in.
Fig. 24
Position actuator on the valve body: Realign the bulge of the diaphragm parallel
to compression piece, see fig. 24
Move the actuator in "open" position, see fig. 20
Fig. 25
Tighten housing nut handtight, see fig. 25
Diaphragm is now centred.
Fig. 26
Screw housing nut with strap wrench tight, till
-
a uniform all-around gap of 0.5 up to 1 mm between valve body and bonnet is
achieved and
-
the half-round position indicator is align with the friction lock, see fig. 26
For valves with a built-in stroke limiter, we recommend to read just the valve.
56
Maintenance