5
APV_VRA_UK-3_032017.indd
Vacuum Valve
DELTA VRA 11
Instruction Manual: UK – rev. 3
APV
UK
8. Maintenance
The maintenance intervals depend on the application and should be
determined by the user carrying out regular checks.
- Exchange of seals according to service instructions.
-
All seals must lightly be greased before their installation!
Recommendation:
APV assembly grease for EPDM, HNBR, NBR und FPM (Viton)
(0,75 kg/ tin - ref.-No. 000 70-01-019/93; H147382)
(60 g/ tube - ref.-No. 000 70-01-018/93; H147381)
oder
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 Silicone seals.
- Assembly of the valve according to service instructions.
9. Materials
Product-wetted parts:
1.4404/1.4571
(DIN
EN
10088)
Other
parts:
1.4301
(DIN
EN
10088)
Seals:
standard
design
EPDM
/
PTFE
option
VMQ,
FPM
