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ALFA LAVAL UNIQUE MIXPROOF TANK OUTLET VALVE INSTRUCTION MANUAL—REV 8/21
5 Maintenance
Study the instructions carefully.
The items refer to the parts list and service kits section.
Handle scrap correctly.
Always use genuine Alfa Laval spare parts. Replace seals if necessary.
S
Stteepp 22
22A
A::
If air fitting AC1 is present, supply compressed air and follow
procedure 2A.
1. Supply compressed air for AC1.
2. Loosen tank plug (93) while counterholding upper stem
(1).
3. Remove the tank plug.
4. Release compressed air.
5. Replace o-ring (38).
A = On
B = Off
IIff bbaallaanncceedd sseeaatt lliifftt iiss aavvaaiillaabbllee
A
B
TD 449-296_1
22B
B::
If no air fitting AC1 is present, follow procedure 2B.
1. Push sealing element (48) free of intermediate piece (37).
2. Loosen tank plug while counterholding upper stem.
3. Remove the tank plug (93).
4. Replace o-ring (38).
IIff nnoo bbaallaanncceedd sseeaatt lliifftt iiss aavvaaiillaabbllee
N
NO
OTTE
E!!
For replacement of seal ring (74), please see 5.3 Tank plug,
replacement of radial seal
22
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