Goulds Pumps 3408 - IOM - Manual (Page 27)

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3408 IOM 03/99
25
SHUTDOWN
The following steps will take care of most normal
shutdowns of the pump, i.e. maintenance. Make any
further adjustments of process piping, valves, etc., as
required. If the pump is to be removed from service for
an extended period of time, refer to the sections on
storage and freeze protection.
1. Shut down the driver. (Consult manufacturer’s
instructions for special operations.)
2. Close suction and discharge valves.
3. Close seal liquid valves. (If pumped liquid is dirty,
or if in leakage is to be prevented, these lines
should always be left open, except when the
pump is completely drained.)
4. Open drain valves as required.
FREEZE PROTECTION
Pumps that are shut down during freezing conditions
should be protected by one of the following methods.
1. Drain the pump; remove all liquid from the casing.
2. Keep fluid moving in the pump and insulate or
heat the pump to prevent freezing.
▲
! CAUTION
If heat is used to keep the pump from freezing,
do not let the temperature rise above 150° F.
FIELD TESTS
A typical performance curve for a specific pump can
be obtained from Goulds Pumps. This can be used in
conjunction with a field test, if one is required. Goulds
Pumps tests and curves are based on the Hydraulic
Institute Standards. Any field test must be conducted
according to these Standards. Unless otherwise specifically agreed, all capacity,
head, and efficiencies are based on shop tests when
handling clear, cold, fresh water at a temperature not
over 85° F.
Appendix “C” contains a field test report sheet and
some useful equations, which can be used when
conducting a field test.