5 Maintenance
Service the valve regularly.
Study the instructions carefully and pay special attention to the warnings!
Always use Alfa Laval genuine spare parts. Always keep spare rubber seals, lip seals and diaphagms in stock.
Check the valve for smooth operation after servicing.
Step 13
Mount the clamp (make sure it is located correctly).
Tighten with a 10mm spanner. Torque = 10-12 Nm.
Grease the thread with Molykote.
Place a hose in the fitting in the sealing element (hole for leakage
detection).
2321-0134
5.6
Assembly of change-over valve
A = Spindle
B = Bonnet
C = Disc
D = Diaphragm
E = Clamp
F = Upper valve body
G = Seat
H = Change-over plug
D
C
B
E
J
H
G
E
F
A
2205-0018
UP
J = Lower valve body
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