Valve Servicing - ProMinent Makro TZ Operating Instructions Manual

Servicing ball valves
Double ball valves - servicing Cleaning a discharge valve
ProMinent ®
11.4

Valve servicing

Screw valve cover (5) onto the suction side
Take the parts carefully out of the valve body (2)
Replace worn parts
Clean remaining parts
Check all parts
(Where applicable: place the compression springs into the valve body (2))
Insert the valve body (3) and the valve seat (4)
Screw in the valve cover (5).
Fig. 30
NOTICE
Note the flow direction for the discharge and suction connections when installing the 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:
Unscrew the discharge valve from the liquid end and rinse. Clean and rinse all dismantled
parts
Replace worn parts and all seals.
1
2
3
4
5
1 Seal
2 Valve body
3 Valve ball
4 Valve seat
5 Valve cover
Repair
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