ITT GOULDS PUMPS 3410, Инструкция по установке, эксплуатации и обслуживанию

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• Ensure that all fasteners are properly tightened and that there are no missing fas-
teners.
CAUTION:
Do not move the pump to the pipe. This could make final alignment impossible.
CAUTION:
Never draw piping into place at the flanged connections of the pump. This can impose danger-
ous strains on the unit and cause misalignment between the pump and driver. Pipe strain ad-
versely affects the operation of the pump, which results in physical injury and damage to the
equipment.
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.
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
Keep the piping as straight as possi-
ble. Avoid unnecessary bends. Use
45° or long radius 90° fittings where
necessary. This helps to minimize friction losses.
Check that only necessary fittings are
used. This helps to minimize friction losses.
Make sure that the inside diameters
match properly when you use flange
joints. —
4.5 Piping checklists
Model 3410 Installation, Operation, and Maintenance Manual 33