Samson 44-6 B, Mounting And Operating Instructions, Page: 37 / 66

EB 2626-2 EN 8-1
Malfunctions
8 Malfunctions
8.1 Troubleshooting
Malfunction Possible reasons Recommended action
Upstream pressure drops
below the adjusted set
point.
Insufficient pressure pulses on the
operating bellows.
Î
Clean the borehole in the body.
Î
Connect the control line on site for regulators with
external control line. Clean the control line and
screw fittings.
Foreign particles blocking the plug
Î
Remove foreign particles.
Î
Replace damaged parts.
Î
Contact SAMSON's After-sales Service.
Seat and plug are worn or leak.
Î
Replace the damaged seat and plug.
Î
Contact SAMSON's After-sales Service.
Pressure tapped at the wrong place
(regulator with external control
line)
Î
Reconnect the control line at another point.
Î
Do not connect the control line at pipe bends or
necks.
Regulator or K
VS
/C
V
coefficient too
large
Î
Check the sizing.
Î
Change K
VS
/C
V
coefficient, if necessary or install
a different sized regulator.
Î
Contact SAMSON's After-sales Service.
Operating bellows defective
Î
Replace the damaged operating bellows.
Upstream pressure
exceeds the adjusted set
point.
Regulator installed against the flow
Î
Install the regulator so that the direction of flow
matches the direction indicated by the arrow on
the body.
Regulator or K
VS
/C
V
coefficient too
small
Î
Check the sizing.
Î
Change K
VS
/C
V
coefficient, if necessary or install
a different sized regulator.
Î
Contact SAMSON's After-sales Service.
Pressure tapped at the wrong place
(regulator with external control
line)
Î
Reconnect the control line at another point.
Î
Do not connect the control line at pipe bends or
necks.
Foreign particles blocking the plug
Î
Remove foreign particles.
Î
Replace damaged parts.
Î
Contact SAMSON's After-sales Service.
Strainer blocked
Î
Clean the strainer.