Repair
Repairing ball valves
70
Only with "Physiologically safe" design:
WARNING!
Product can be dangerously contaminated
Only use the spare parts from the "Physiologically safe"
spare parts kits.
Personnel:
n
CAUTION!
Warning of personal injury and material damage
Feed chemical may escape from the liquid end, for
example, if ball valves are 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 pressure and suction
connectors when fitting the valve.
CAUTION!
Warning of feed chemical spraying around
PTFE seals, which have already been used / com‐
pressed, can no longer reliably seal a hydraulic connec‐
tion.
–
New, unused PTFE seals must always be used.
Fig. 35: Ball valve, simple, cross-section
1
Flat seal
2
Valve body
3
Valve ball
4
Valve seat
5
Valve cap
Technical personnel
1
2
3
4
5
P_SI_0013_SW