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19
REMEDIES
Confirm both the pump liquid
end and motor module are
firmly secured to a rigid
structure.
QSV pumps must be fed with
positive pressure [at least
20 psi (1.4 bar). Check to
make sure there are no
obstructions, constrictions,
high points, or clogged filters
ahead of the pump.
QSV pumps must operate in
the flow range specified by
the performance summary
table or the pump perform-
ance curve.
Seal threaded fittings with
Teflon tape. Make sure gas-
kets are properly seated in
Victaulic or flanged fittings.
Replace the O-ring if possible,
or return the pump to the
factory for repair.
POSSIBLE CAUSES
Improper mounting
Starved suction line
Operating off the
performance curve
Piping not properly sealed
O-rings in pump casing or
motor module damaged
PROBLEM
Pump/motor vibrates
Pump leaks
TROUBLESHOOTING GUIDE