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Testing After Installation
2
Use the illustration and instructions to adjust the
packing after installing the pump into the apparatus.
Note:
Certain parts have been removed from the
illustration to provide a clear view of the
equipment being tested.
1 Operate the pump at its maximum intended
pressure for 10 minutes.
2 Observe the drip rate. Optimal leakage is 10
to 120 drops per minute. Maintaining this rate
facilitates the cooling of the packing.
3 If the drip rate is too high, turn off the
pump and gradually tighten the gland nuts,
alternating between them to make sure that
the gland stays level.
4 Operate the pump at its maximum intended
pressure for 2 minutes. Observe the drip rate,
then repeat the previous step until leakage is
within the optimal range.
5 Repeat the process with the packing housing
at the other end of the pump.
6 Make sure that you perform all tests required
by the National Fire Protection Association.
Содержание CP-4
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Страница 41: ...Waterous Company 125 Hardman Avenue South South Saint Paul MN 55075 651 450 5000 www waterousco com ...