Samson 41-23 - Malfunctions and Troubleshooting; Troubleshooting Guide

EB 2512 EN 8-1
Malfunctions
8 Malfunctions
8.1 Troubleshooting
Malfunction Possible reasons Recommended action
Downstream pressure
exceedstheadjusted
set point.
Insufcientpressurepulsesonthe
operating diaphragm
Î Connect the control line on site for regulators
withexternalcontrolline.
Î Cleanthecontrollineandscrewttings.
Foreign particles blocking the plug
Î Remove foreign particles.
Î When parts are damaged, contact SAMSON's
After-sales Service.
Seat and plug are worn or leak.
Î When parts are damaged, contact SAMSON’s
After-sales Service.
Control line blocked Î Cleanthecontrollineandscrewttings.
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
coefcienttoo
large
Î Checkthesizing.
Î Change K
VS
/C
V
coefcient,ifnecessaryor
installadifferentsizedregulator.
Î Contact SAMSON's After-sales Service.
Compensation chamber in the wrong
position or too small (with steam)
Î Reconnect compensation chamber at a different
placeorreplaceit(seeAnnex).
Defective operating diaphragm Î Replace damaged diaphragm.
Downstream pressure
hunts
Regulator or K
VS
/C
V
coefcienttoo
large
Î Checkthesizing.
Î Change K
VS
/C
V
coefcient,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.
The restriction in the control line for
pressure tapping is too large or
missing.
Î Install a restriction.
Î Install a smaller restriction.