Installation and Commissioning
Commissioning
32
Operating Instructions · Control Valve A
Edition 2016-06-07
Valve Stroke
Tests During the Product Run
Carry out the following steps:
Check by visual inspection whether
– all valve functions are correct and
– all seals are free of leakage.
Done
Operation
In the event of malfunctions immediately deactivate the control valve and secure it
against inadvertent reactivation. Have any defects rectified immediately.
If the compressed air supply to the control valve fails, the valve assumes the non-actu-
ated position, which depends on the actuator type (spring-to-open or spring-to-close). It
must be ensured that no hazardous conditions in the plant can arise in the event of
failure of the compressed air supply.
Valve Stroke Table
Actuator type/size
Valve stroke (mm)
MFI-20
20
MFI-30
30
MFIII-30
30
MFIII-60
60
