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Test procedures and test reports |
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|  MIL-P-17840C(SH)
(a) Hydrostatic test (see 4.6.2)
(b) Operational test (see 4.6.3).
4.4.1 In addition, one pump of each size on the contract or order shall
be subjected to the following tests:
(a) Performance tests (see 4.6.4).
(b) Mechanical shaft seal test (see 4.6.5).
(c) Shock test (see 4.6.6).
4.5 Tests. The contracting activity and Government representatives shall
have the right to examine the facilities at the contractor's plants and at the
contractors subcontractor's plants, and to witness all tests specified herein.
Failures, deficiencies, and discrepancies revealed during the performance of
the specified tests and the corrective measures taken shall be recorded and
fully documented in the applicable test records and test reports (see 6.2.2).
After correction of deficiencies, tests shall be repeated to the extent
necessary to ascertain acceptability for the modified punp. Major failure
indicative of the design deficiency (as distinguished from shop error or faulty
workmanship) shall be reported to the design review agency before a correction
is made.
4.6 Tests.
4.6.1 Test procedures and test reports. The contractor shall prepare
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test procedures and test reports in accordance with the data ordering documents
included in the contract or order (see 6.2.2). All first article test reports
shall be submitted to NAVSEA for approval.
4.6.1 Test procedures and test report. Each pump casing shall be tested hydrostatically
to pressures shown on figure 1. Hydrostatic test pressures shall be maintained
for at least 15 minutes, or longer as necessary for examination of the entire
The casing and suction cover shall exhibit no leakage through the
casing,
casing material or joints.
4.6.3 Operational test. Each pump assembled with its driving motor shall
be tested at its rated operating speed and point of rating by a continuous non-
stop run of at least 30 minutes, to check operation and smoothness of running.
4.6.4 Performance tests.
4.6.4.1 Performance tests shall be conducted and reported in accordance
with the Test Code of Standards of the Hydraulic Institute, Centrifugal Pump
Section, for tests classed as *'Factory tests at the pump manufacturer's plant'".
4.6.4.2 Driving units shall be tested as required by the applicable motor
specifications (see 6.2.1).
4.6.4.3 One pump of each size on the contract or order, complete, includ-
ing the motor, shall be given a test to determine the overall power consumption
of the unit under the specified or guaranteed conditions. The command or agency
concerned may consider waiver of overall power consumption tests on pumps if
identical units with identical guarantees have been previously manufactured and
tested by the same contractor.
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