Operating instructions

ProMinent
®
Page 39
Repair
11.4 Valve servicing
Servicing ball valves 왘 Screw valve cover (5) onto the suction side
왘 Take the parts carefully out of the valve body (2)
왘 Replace worn parts
왘 Clean remaining parts
왘 Check all parts
왘 (Where applicable: place the compression springs into the valve body (2))
왘 Insert the valve body (3) and the valve seat (4)
왘 Screw in the valve cover (5).
Fig. 30
1 Seal
2Valve body
3Valve ball
4Valve seat
5Valve cover
2
1
5
4
3
NOTICE
Note the flow direction for the discharge and suction connections when installing the valve.
Double ball valves - servicing Cleaning a discharge valve
IMPORTANT
Clean the suction and discharge valves one after another as they are not distinguishable
from one another.
Use only new parts which fit your valve (shape and chemical resistance)
Dismantling discharge valve:
왘 Unscrew the discharge valve from the liquid end and rinse. Clean and rinse all dismantled
parts
왘 Replace worn parts and all seals.
BA_MA_TZ_006_10_06_GB.p65 05.02.2007, 13:41 Uhr39