MIL-P-28501C(YD)
This element of inspection shall encompass all visual examinations
suitability.
and dimensional measurements. Noncompliance with any specified requirement or
presence of one or more defects preventing or lessening maximum efficiency shall
constitute cause for rejection.
4.5 Tests.
Prior to the tests specified herein which require the units be
operated, the units shall be serviced with lubricants recommended by the
manufacturer for use in the ambient temperature at the test location.
Performance tests shall be conducted in
4.5.1 First
article tests.
accordance with
the Centrifugal Pump Section of the Hydraulic Institute
The
first article shall receive the tests of 4.5.1.1 and 4.5.1.2.
Standards.
Failure to pass
any tests shall constitute cause for rejection.
The pump assembly shall be tested to determine
4.5.1.1 Performance test.
compliance with the requirements of 3.5.
The tests shall be conducted with a
During the
sustained pumping liquid level sufficient to prevent vortexing.
operation, a characteristic capacity-head tune shall be plotted over the
complete operating range of the pump.
4.5.1.2 Hydrostatic p r e s s u r e tes t. The pump assembly shall be subjected to
a hydrostatic test pressure as specified in 3.5.2 and 3.5.3, as applicable, for
a period of not less than 5 minutes.
Hydrostatic test shall be made using oil
No leakage shall be evident in the
or water at the option of the supplier.
casing or through the casing gasket.
4.5.2 Quality conformance Op erational test. The pump assembly shall be
operated at induction motor speed to determine the capacity of the pump at a
The operating time shall be that required to obtain
500 foot discharge head.
the performance characteristics of the pump.
Failure of the pump to attain the
applicable capacity specified in 3.5, at a 500-foot discharge head, shall
constitute failure of this test.
4.6 Packag ing inspection.
The inspection of the presentation, packing, and
marking shall be in accordance with the requirements of section 4 of MIL-P-710.
The inspection shall consist of the quality conformance inspection; and, when
specified (see 6.2), a preproduction pack shall be furnished for examination and
test within the time frame required (see 6.2).
5.
PACKAGING
5.1 Preservation, p a c k i n g and marking.
Preservation, packing, and marking
shall be in accordance with the requirements of MIL-P-710 with the level of
presentation and the level of packing as specified (see 6.2).
6.
NOTES
(This section contains information of a general or explanatory nature that
may be helpful, but is not mandatory.)
6.1
The pump assemblies are intended for use in
Intended use.
semi-permanent and permanent 6-inch diameter deep-well, water supply systems.
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