Check
Explanation/comment
Checked
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.
—
Make sure that all the piping joints
and fittings are airtight.
This prevents air from entering the piping system or 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 re-
move the pump.
—
This helps to prevent misalignment due to linear expansion of
the piping.
Example: Installation for expansion
Correct
Incorrect
This illustration shows a correct installation for expan-
sion:
1
1.
Expansion loop/joint
This illustration shows an incorrect installation for expan-
sion:
4.7.2 Fastening
WARNING:
Risk of serious personal injury or property damage. Fasteners such as bolts and nuts are criti-
cal to the safe and reliable operation of the product. Ensure appropriate use of fasteners 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 fasteners.
4.7 Piping checklists
42
Models 3180, 3181, 3185, and 3186 Installation, Operation, and Maintenance Manual
Содержание GOULDS PUMPS 3180
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