SPX APV DELTA SVS1F DN 125, Operating Manual, Page: 13 / 45

8
UK
- The maintenance intervals depend on the application of the valve
and should be determined by the operator carrying out regular
checks of the valve.
- There are a few wear parts on SVS1F butterfly valves, principally
the SV seal, flange seals and bearings.
- It is recommended that spare seals and bearings are
kept by the user. Complete seal kits for the valve service
are available (see spare parts lists).
- If damaged seals are replaced, generally all seals and
bearings should be changed.
- Dismantling and installation of seals according to service
instructions.
- All seals must be slightly greased before their installation.
Grease SV seal according to (fig.1)
- especially the cross bores.
- Assembly of valve and change of valve design NC or NO
see service instructions.
- Installation of actuator see service instructions.
- The inner parts of the actuator are maintenance free.
- Attention! Use food-grade special grease being suited for the
respective seal material, only.
Recommendation:
APV-food-grade grease for EPDM, FPM, HNBR and NBR
(0,75 kg /can
- ref. No. 000 70-01-019/93)
(60 g /tube - ref. No. 000 70-01-018/93)
or
APV-food-grade grease for VMQ
(0,6 kg /can
- ref. No. 000 70-01-017/93)
(60 g /tube - ref. No. 000 70-01-016/93)
!!! Do not use grease containing mineral oil for EPDM seals !!!
!!! Do not use Silicone-based grease for VMQ seals !!!
grease
grease
grease
SV seal
9. Maintenance
Butterfly Valve
DELTA SVS1F DN125-250
Operating Manual rev.2