SAMES KREMLIN
Page 6
Manual : 573.008.212
7. TROUBLESHOOTING
CHART
PRESSURE REGULATOR (AIR OR SPRING OPERATED)
TROUBLE
CAUSE
SOLUTION
Overpressure at the regulator
outlet
Adjustment screw or adjustment
knob of the regulator turned
clockwise (full closed)
Unscrew adjustment screw or
knob.
Air pilot pressure too high
Decrease pilot pressure.
Bad tightness of seat and ball
Clean or replace.
No material coming out from the
regulator
Adjustment screw or knob turned
counter-clockwise (full open)
Screw adjustment screw or knob.
Air pilot pressure insufficient
Increase pilot air pressure.
Ball blocked on the seat, needle
broken
Clean and reinstall or change.
Irregular flow rate
Too much pulsation in the fluid
network
Adjust inlet pressure.
Improper proofness of seat, ball
and spring
Clean or replace.
Regulator in horizontal position
Mount the regulator in vertical
position
Leakage at the upper part of the
regulator
Defective fluid diaphragm
Replace it.
Screws improperly tightened on
the lower body
Tighten up the screws.
BACK PRESSURE REGULATOR
DEFECT
CAUSE
SOLUTION
Overpressure upstream of the
regulator
Adjustment screw or knob turned
clockwise (full closed)
Turn the adjustment screw or
knob counter-clockwise.
Pressure too high in the fluid
circuit (or circulating)
Decrease pressure.
Pressure drop upstream of the
regulator
Adjustment screw or knob turned
counter-clockwise (full open)
Screw the adjustment screw or
knob.
Improper fluid proofness of seat
and ball
Clean and reinstall.
Irregular circulation
Too important pulsation in the
fluid network
Check and adjust inlet pressure.
Improper proofness of seat and
ball
Clean or replace.
Material leakage at the upper
body of the regulator
Defective fluid diaphragm
Replace it.
Loosened screws on the upper
body
Tighten up the screws.
