Cleaning Valves - ProMinent Beta b BT4b Series Operating Instructions Manual

13.1

Cleaning valves

Cleaning a discharge valve or a suction
valve on types (PP, PV, NP) 1000, 1601,
1602, 1604, 2504
Cleaning a discharge valve or a suction
valve on types (PP, PV, NP) 0708, 1008,
0220, 0420, 0413, 0713, 0232
Repairs that may be carried out by qualified technical personnel, in
accordance with the operating instructions:
Cleaning valves
n
Replacing the diaphragm
n
All other repairs: Contact the responsible ProMinent branch!
Warning of faulty operation
Refer to the exploded drawings in the appendix when
working on the unit.
Warning of faulty operation
Discharge and suction valves differ from each other!
–
Only take them apart one after each other, so that
you do not confuse the components!
Only use new components which fit your valve -
–
both in terms of shape and chemical resistance!
Recalibrate the pump after replacing a valve!
–
Using an Allen key or similar, insert it into the
–
smaller hole of the pressure connector and push the
valve inserts out of it.
A suction valve is constructed in almost the same way as a discharge
valve.
Please note, however, that:
the two valve inserts are identical here.
n
There is an additional spacer between the valve inserts.
n
There is a shaped seal in the dosing head instead of an O-ring.
n
The flow direction of the suction connector is the opposite to that of
n
the pressure connector.
Warning of faulty operation
Discharge and suction valves differ from each other!
–
Only take them apart one after each other, so that
you do not confuse the components!
– Only use new components which fit your valve (both
in terms of shape and chemical resistance)!
With the PVT material version, the ball seat is inte‐
–
grated in the dosing head and so has to be cleaned
separately!
With the PVT material version, the discharge valve
–
is a double ball valve!
Using an Allen key or similar, insert it into the
–
smaller hole of the pressure connector and push the
valve inserts out of it.
A suction valve is constructed in almost the same way as a discharge
valve.
Repairs
43