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APV_DE3_UK-7_082017.indd
UK
Double Seat Valve
DELTA DE3
Instruction manual: UK - rev. 7
APV
11. Maintenance
- The maintenance intervals depend on the application and should be
determined by the user carrying out regular checks.
- Compressed air is not required to dismantle the valve.
Required tools:
- 1 x spanner SW13
- 2 x spanner SW17
- 2 x spanner SW24
- disassembly and assembly support for the lower shaft seal
ref.-No. 000 51-13-100/1; H171889
- Replacement of seals according to Service Instructions.
The customer is recommended to hold spare seals on stock.
For valve maintenance SPX FLOW supplies complete seal kits
including seal grease (pl. see spare parts lists).
- The valve must not be cleaned with products containing abrasive
or polishing substances. Especially the valve shafts must not be
cleaned with such agents under any circumstances. Damage of the
valve shaft can produce leakages.
- Assembly of the valve according to Service Instructions.
All seals must be provided with a thin layer of grease before
their installation. (see lubrication chart)
Attention! Use only food-grade special grease being
suited for the respective seal material.
Recommendation:
APV assembly grease for EPDM, HNBR , FPM
(0,75 kg /tin - ref.-No. 000-70-01-019/93; H147382)
(60 g /tube - ref.-No. 000-70-01-018/93; H147381)
! Do not use grease on mineral oil basis for EPDM seals.
Recommendation for actuator (main cylinder):
APV pneumatic grease:
(25 ml / tube - ref.-No.: 000-70-01-008/93; H164725)
Less suited grease types can influence function and lifetime.
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Maintenance Video
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