4.7.5 Auxiliary-piping checklist
Precautions
NOTICE:
Auxiliary cooling and flush systems must be operating properly to prevent excess heat genera-
tion, sparks, and/or premature failure. Ensure auxiliary piping is installed as specified on the
pump data sheet prior to startup.
When to install
You may need to install auxiliary piping for bearing cooling, seal-chamber cover cooling, mechanical seal
flush, or other special features supplied with the pump. Consult the pump data sheet for specific auxiliary
piping recommendations.
Checklist
Check
Explanation/comment
Checked
Check that the minimum flow for each
component is 4 lpm | 1 gpm.
If the bearing and seal chamber cover
cooling are provided, then the auxiliary pip-
ing must flow at 8 lpm | 2 gpm.
–
Check that the cooling water pressure
does not exceed 7.0 kg/cm
2
| 100 psig .
–
4.7.6 Final piping checklist
Check
Explanation/comment
Checked
Check that the shaft rotates smoothly.
Rotate the shaft by hand. Make sure there is no rubbing that
can lead to excess heat generation or sparks.
Re-check the alignment to make sure that
pipe strain has not caused any misalign-
ment.
If pipe strain exists, then correct the piping.
4.7 Piping checklists
Models 3180, 3181, 3185, and 3186 Installation, Operation, and Maintenance Manual
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