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The pump is working but no liquid is escaping.
Cause:
Recommended measure:
The valve on the suction side is not open.
Open the valve on the suction side.
Too high a suction or discharge lift.
Check the configuration of the installation and reduce the
height of the installation
The outlet opening of the fluid line (including the
filter) is blocked with foreign bodies.
Check and clean the liquid line.
The pump is blocked.
Dismantle the pump, then check and clean the pump.
The ball and the ball seat are worn or damaged. Check the components and replace if necessary.
The flow volume is reducing.
Cause:
Recommended measure:
The air pressure is low
Check the compressor and the configuration of the air
line.
The air line and the ancillary equipment are
blocked with foreign bodies.
Check and clean the air line.
The outlet valve on the discharge side is not
opening normally.
Adjust the outlet valve on the discharge side.
The liquid is mixing with air.
Top up liquid if necessary. Check and adjust the configu‐
ration of the line on the suction side if necessary.
Cavitation will be caused.
Adjust the air supply pressure and the outlet pressure
and reduce the suction capacity
Vibrations.
Adjust the air pressure and the outlet pressure. Reduce
the flow of the inlet valve to adjust the pressure and
volume of the fluid.
Ice formation in the air outlet.
Remove ice from the air bypass valve and check and
clean the air filter. Use a longer intermediate pipe in the
exhaust air to prevent ice from forming in the silencer.
The liquid line (including the filter) is blocked
with foreign bodies.
Check and clean the liquid line and the filter mesh.
The outlet opening or the silencer of the pump is
blocked with foreign bodies.
Check and clean the outlet opening and the silencer.
The pump is blocked with foreign bodies, e.g.
sludge.
Remove, check and clean the pump housing.
Escape of liquid through the open compressed air outlet (silencer).
Cause:
Recommended measure:
The diaphragm is faulty
Remove and check the pump and replace the dia‐
phragm.
Maintenance of the double diaphragm pump
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Содержание Duodos 100 PPS
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