11.1 Cleaning valves
Unsuitable spare parts for the valves may lead to problems
for the pumps.
–
Only use new components that are especially adapted to
fit your valve (both in terms of shape and chemical
resistance).
–
Use the correct spare parts kits. In case of doubt, refer
to the exploded views and ordering information in the
appendix.
Only with the "Physiologically safe" design:
WARNING!
Product can be dangerously contaminated
Only use the spare parts from the "Physiologically safe"
spare parts kits.
Personnel:
n
Technical personnel
CAUTION!
Warning of personal injury and material damage
Feed chemical may escape from the liquid end, for example,
if ball valves not repaired correctly.
–
Only use new components which fit your valve - both in
terms of shape and chemical resistance!
–
Note the flow direction of the discharge and suction con‐
nectors when fitting the valve.
CAUTION!
Warning of feed chemical spraying around
PTFE seals, which have already been used / compressed,
can no longer reliably seal a hydraulic connection.
–
New, unused PTFE seals must always be used.
1
2
3
4
5
P_SI_0013_SW
Fig. 21: Simple cross-section through ball valve
1
Flat seal
2
Valve body
3
Valve ball
4
Valve seat
5
Valve cap
Repairing ball valves
Repairs
35
Summary of Contents for 040830 SST
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