Maintenance Of The Non-Return Valve (Outlet) - WIKA CPP7-H Mode D'emploi

7. Maintenance and cleaning
5. Re-close the opening
EN
Screw
15
Spring
16
Valve plunger incl. O-ring (0.74 x 1.02 mm)
17

7.1.2 Maintenance of the non-return valve (outlet)

Should the pressure drop continuously, the O-ring on the outlet non-return valve on the
front of the pump may be worn or dirty.
Even small impurities on the O-ring can cause leakage at low pressures.
20
with the screw
14 15
Fig. 1 - Inserting the non-return valve
.
WIKA operating instructions, model CPP7-H
15
16
17