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F)
Suction and discharge piping should be the same size or larger than the inlet and
outlet ports.
G)
Clean piping as necessary to remove dirt, grit, weld slag, etc.
H)
If the Liquiflo pump was delivered as a complete assembly, it was properly aligned
at the factory. Alignment should be checked by taking measurements at the
coupling. Flexible couplings are not intended to compensate for misalignment.
Therefore, both angularity and parallelism should be checked and corrected. If these
are off, by more than 0.015 inches (0.4 mm), the assembly should be realigned.
I)
For further instructions on mounting or installing your pump, refer to the Hydraulics
Institute Handbook.
J)
A positive displacement pump should have a pressure relief valve installed in the
discharge line.
K)
Maximum particle size capable of being passed by the pump is 37 microns. A filter
of at least 400 U.S. Mesh should be installed in the suction line. 312, H12 and 314
particle size is 60 microns with a filter mesh of 230 U.S. Concentration of solids,
exceeding 1% is not recommended as wear rates will increase to unacceptable
levels.
!
A)
Turn the pump by hand to insure that it turns freely.
B)
Jog the motor to check the rotation. As viewed from the pump end a clockwise
rotation of the motor will result in fluid discharge to the left. Counterclockwise
rotation will result in fluid discharge to the right. The 312, 314 and the H series are
opposite.
C)
The pump should be operated with at least a 20-psi (1.4 bar) differential pressure.
D)
The pump is capable of pulling a dry lift, but it is still recommended to prime the
pump prior to start up.
E)
Do not operate the pump without fluid in it for more than 30 seconds.
SPECIAL PRECAUTIONS FOR VARIOUS SEALS
A)
If packing was specified for the stuffing box the following should be observed.
START UP
Insure motor is locked out, prior to rotating pump by hand.
P. 3
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