Goulds Pumps XHD - IOM - Manual (Page 37)

Installation
Check Explanation/comment Checked
Do not connect the piping to the —
pump until:
• The grout for the baseplate or
sub-base becomes hard.
• The hold-down bolts for the
pump and the driver are tight-
ened.
Make sure that all the piping joints This prevents air from entering the piping system or
and fittings are airtight.
leaks that occur during operation.
If the pump handles corrosive
fluids, make sure that the piping
allows you to flush out the liquid
before you remove the pump.
If the pump handles liquids at
This helps to prevent misalignment due to linear expan-
elevated temperatures, make sion of the piping.
sure that the expansion loops and
joints are properly installed.
Example: Installation for expansion
Correct Incorrect
This illustration shows a correct installation for This illustration shows an incorrect installation for
expansion: expansion:
1. Expansion loop/joint
Suction-piping checklist
Performance curve reference
Suction-piping checks
Check Explanation/comment Checked
Check that the distance between This minimizes the risk of cavita-
the inlet flange of the pump and tion in the suction inlet of the
closest flow disruption (elbow, pump due to turbulence.
valve, strainer, or expansion joint)
is at least five pipe diameters.
Check that elbows in general do
See the Example sections for il-
not have sharp bends. lustrations.
XHD Installation, Operation, and Maintenance Manual 35