system, including those from the thermal expansion of the piping, must not exceed the
limits of the pump.
•
Risk of serious personal injury or property damage. Fasteners such as bolts and nuts are
critical to the safe and reliable operation of the product. Ensure appropriate use of fasten-
ers during installation or reassembly of the unit.
•
Use fasteners of the proper size and material only.
•
Replace all corroded fasteners.
•
Ensure that all fasteners are properly tightened and that there are no missing fas-
teners.
NOTICE:
Vary the capacity with the regulating valve in the discharge line. Never throttle the flow from the
suction side. This action can result in decreased performance, unexpected heat generation,
and equipment damage.
Piping guidelines
Guidelines for piping are given in the Hydraulic Institute Standards available from the Hydraulic Institute
at 9 Sylvan Way, Parsippany, NJ 07054-3802. You must review this document before you install the
pump.
Checklist
Check
Explanation/comment
Checked
Check that all piping is supported in-
dependently of, and lined up naturally
with, the pump flange.
•
Strain on the pump
•
Misalignment between the pump and the drive unit
•
Wear on the pump bearings and the coupling
Keep the piping as short as possible. This helps to minimize friction losses.
Check that only necessary fittings are
used.
This helps to minimize friction losses.
Do not connect the piping to the
pump until:
•
The grout for the baseplate or
sub-base becomes hard.
•
The grout for the pit cover be-
comes hard.
•
The hold-down bolts for the
pump and the driver are tight-
ened.
—
This helps to prevent misalignment due to linear expansion of
the piping.
4.6 Piping checklists
Model CV 3196 i-FRAME Installation, Operation, and Maintenance Manual
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