Samson 2373, Инструкция по монтажу и эксплуатации

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EB 2534 EN 31
Malfunctions
Table 6: Troubleshooting
Malfunction Possible reasons Recommended action
Downstream pressure p
2
exceeds the adjusted set point.
Foreign particles blocking the plug
Î
Remove foreign particles.
Î
Replace damaged parts.
Insufficient pressure pulses on the
operating diaphragm.
Î
Clean the control line and screw fittings.
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.
Control line blocked
Î
Clean the control line and screw fittings.
Seat and plug are worn or leak.
Î
Replace the damaged seat and plug.
Defective operating diaphragm
Î
Replace damaged operating diaphragm.
Seal venting bore.
Î
Open venting bore.
Downstream pressure p
2
drops below 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.
Strainer blocked.
Î
Clean the strainer.
Foreign particles blocking the plug
Î
Remove foreign particles.
Î
Replace damaged parts.
Jerky control response.
Increased friction, e.g. due to
foreign particles between seat and
plug or in the stem guide on the
bonnet.
Î
Remove foreign particles.
Î
Replace damaged parts.
Slow control response.
Control line blocked by dirt causing
the flow through it to be restricted.
Î
Clean the control line.
Downstream pressure hunts
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.
Loud noises. High flow velocity, cavitation.
Î
Check the sizing.
Î
Install larger regulator, if necessary.
Leakage at the venting bore Defective operating diaphragm
Î
Replace damaged operating diaphragm.
Leakage at the diaphragm
stem
Dirt in the seal of the actuator
casing and actuator stem
Î
Replace the actuator stem and actuator
casing.