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APV_SWmini4_GB-2_042020.indd
Single Seat and Change-over Valve
DELTA SWmini4
Instruction manual: GB – rev. 2
GB
APV
11. Maintenance
The maintenance intervals depend on the corresponding application
and are to be determined by the operator himself carrying out
temporary checks.
Required tools:
1 x spanner SW 8
1 x spanner SW 13
1 x spanner SW 17
1 x spanner SW 19
- For the valve service complete seal kits are supplied (see pare parts
lists). The appropriate grease is included in the scope of supply of a
complete seal kit.
- Exchange of seals is carried out according to service instructions.
-
Assembly of the valve and change of valve design NC (FS) or NO
(FH), see service instructions.
- Installation of actuator, see Service Instructions.
- The inner parts of the actuator are maintenance-free.
Slightly grease all seals before their installation.
Attention!
Use only those greases being suited
for the respective seal material !
Recommendation:
APV assembly grease for EPDM, FPM, HNBR and NBR
(0,75 kg/tin
- ref.-No. 000 70-01-019/93; H147382)
(60 g/tube
- ref.-No. 000 70-01-018/93; H147381)
or
APV assembly grease for VMQ (silicone)
(0,6 kg/tin
- ref.-No. 000 70-01-017/93; H147380)
(60 g/tube
- ref.-No. 000 70-01-016/93; H147379)
!
Do not use grease containing mineral oil for EPDM seals.
!
Do not use Silicone-based grease for VMQ seals.
Assembly tool for seat seal
To simplify the installation of the seat seal in the valve shaft, the
following assembly tools are available
assembly tool for
SWmini 41 / 42 / 43 / 44
DN
ref.-No.; ID-No.
10, 15
000 51-13-052/17; H314147
20
000 51-13-050/17; H207967
