Goulds Pumps 3610 - IOM - Manual (Page 29)

Installation
CAUTION:
Flange loads from the piping system, including those from the thermal expansion of the piping, must not
exceed the limits of the pump. Casing deformation can result in contact with rotating parts, which can
result in excess heat generation, sparks, and premature failure.
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 This helps to prevent:
independently of, and lined up
• Strain on the pump
naturally with, the pump flange. • Misalignment between the pump and the drive unit
See Alignment criteria for pump • Wear on the pump bearings, seal, and shafting
flanges.
Check that only necessary fittings This helps to minimize friction losses.
are used.
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 are tightened.
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
elevated temperatures, make
sure that the expansion loops and
joints are properly installed.
Alignment criteria for pump flanges
Type Criteria
Axial The flange gasket thickness is ±0.03 in. (0.8 mm).
Parallel Align the flange to be within 0.001 in./in. to 0.03 in./
in. (0.025 mm/mm to 0.8 mm/mm) of the flange
diameter.
Concentric You can easily install the flange bolts by hand.
Fastening
WARNING:
• Only use fasteners of the proper size and material.
• Replace all corroded fasteners.
• Make sure that all fasteners are properly tightened and that there are no missing fasteners.
Suction-piping checklist
Performance curve reference
CAUTION:
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.
Installation, Operation, and Maintenance Manual 27