Maintenance - SPX FLOW APV DELTA RG4 Instruction Manual

APV
APV_RG4_ATEX_UK-0_032018.indd
17

10. Maintenance

The maintenance intervals depend on the corresponding
application and are to be determined by the operator himself
carrying out temporary checks.
The valve must not be cleaned with products containing abrasive
or polishing material. Especially the valve shaft must not, under
any circumstances, be cleaned with such agents. Damage of the
valve shaft can lead to leakages.
Before start of maintenance and assembly the operator must make
sure that an explosive atmohsphere does not exist (detection/
measurement of potential concentration of hazardous substances).
Alternatively, use spark-resistant tools!
Dismantling and installation of valve seat / valve cone according to
Service Instructions (pos. 11).
Exchange of seals is done according to Service Instructions.
Customer stock keeping of spare seals is recommended.
For valve service actions we supply complete seal kits
including seal grease (see spare parts lists).
Attention!
Recommendation:
APV assembly grease for EPDM, FPM, HNBR and NBR
(0,75 kg/tin
(60 g/tube
or
APV assembly grease for VMQ (Silicone)
(0,6 kg/tin
(60 g/tube
! Do not use grease containing mineral oil for EPDM seals.
! Do not use Silicone-based grease for VMQ seals.
Less suited grease types can influence function and service life.
Diaphragm actuator
Installation and Instructions Manual of diaphragm actuator 3277
see http://www.samson.de / English / Search (EB 8310-6)
Electro pneumatic positioner
Installation and Instructions Manual of electropneumatic positioner
IP3730-11
see http://www.samson.de / English / Search (EB 8384-1)
Use food-grade grease and special greases being
suited for the respective seal material, only!
- ref.-No. 000 70-01-019/93; H147382)
- ref.-No. 000 70-01-018/93; H147381)
- ref.-No. 000 70-01-017/93; H147380)
- ref.-No. 000 70-01-016/93; H147379)
UK
Modulating Valve
DELTA RG4-ATEX
Instruction Manual: UK-0