Trouble Shooting - SPX FLOW APV DELTA RG4 Instruction Manual

APV
APV_RG4_ATEX_UK-0_032018.indd
Failure
Leakage between upper housing flange and yoke flange Replace housing seal.
Leakage between lower housing flange and
counterflange
Leakage at lateral flange connection
Positioner type 3277
Air escapes from diaphragm actuator.
Positioner type 3730-11
Valve does not regulate properly.
23
13. Trouble Shooting
Remedy
Replace housing seal and flange seal.
Replace flange seal.
Check screw connection, if necessary replace rolling
diaphragm. See Instruction Manual of diaphragm
actuator: http://www.samson.de \ English \ Search
Check air connection and air pressure.
Check electric connection and control signal.
See Instruction Manual of positioner for trouble
shooting: http://www.samson.de \ English \ Search
UK
Modulating Valve
DELTA RG4-ATEX
Instruction Manual: UK-0