12
Trouble
Possible cause
Remedy
3) The discharge rate is
insufficient.
・
Check valve at suction side
(FLUID IN) or discharge side
(FLUID OUT) is clogged.
・
Excessive viscosity of
Transported fluid.
・
Excessive required suction or
discharge pressure.
・
The filter of suction side (FLUID
IN) is clogged.
・
The filter of discharge side
(FLUID OUT) is clogged.
・
Insufficient air supply.
・
Too small port size of
Transported fluid piping.
・
Application of back pressure
from discharge side (FLUID
OUT).
・
Cleaning.
・
Non-conformance.
・
Reduction of required
head.
・
Cleaning or replacement.
・
Cleaning or replacement.
・
Supply of air at adequate
pressure.
・
Increase of air supply.
・
Removal of back pressure
or increase of supplied air
pressure.
4) A lot of air bubble come
out from discharge side
(FLUID OUT).
・
Air is sucked by suction side
(FLUID IN).
・
Sealing failure of fitting at
suction side (FLUID IN).
・
Damaged diaphragm.
・
Looseness of diaphragm fixing
bolt.
・
Prevention of suction.
・
Secure mounting of seal.
・
Replacement of pump.
・
Retightening.
5) Transferred fluid is
flowed out from exhaust
port. (AIR EXH)
・
Damaged diaphragm
・
Replacement of pump.
6) Transported fluid or air
leaks from jointed part to
outside.
・
The diaphragm is damage or
comes off.
・
Looseness of bolts which fix the
parts at each port (port, elbow
fixing flange, port fixing flange,
air port cover).
・
Replacement of pump.
・
Retightening.
