12
APV_DKR2_DE-9_032019.indd
Double Seat Ball Valve
DELTA DKR 2
Instruction Manual: UK - rev. 9
APV
UK
11. Maintenance
- The maintenance intervals depend on the specific application and
should be determined by the user carrying out temporary checks.
- Storage of spare seals by the customer is recommended.
For the valve maintenance, we supply complete set of seals (see
spare parts lists).
- If damaged seals are exchanged, generally all seals should be
replaced.
- Assembly and adjustment of turning actuator according to Service
Instructions.
- Dismantling and installation of seals according to Service
Instructions.
- Slightly grease all seals before their installation
- The inner parts of the turning actuator do not require maintenance.
Caution!
Use food-grade special grease which is suited for
the respective seal material, only.
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 with EPDM seals.
! Do not use Silicone-based grease with VMQ seals.
Less suited grease types can influence function and life time.
Scan for DKR2 Valve
Maintenance Video