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|  MIL-V-82440(OS)
Shock, packed and packaged. The valve, packed and packaged
4.4.4.9
in accordance with Section 5, shall be subjected to free fall drop
tests. The valve in its container shall be dropped from a height of 36
inches, one drop on each of 4 diagonally opposite corners and flat drops,
one each, on the bottom and on one side. The drops shall be made on an
impact surface of essentially non-yielding material such as stone or
concrete. The complete series of drops shall be performed under each
of the following conditions: room temperature, within 10 minutes after
the container has been stabilized at -45 F 5 F, and within 10
minutes after the container has been stabilized at +140 F 5 F.
Operational service life. The valve shall be subjected to
4.4.4.10
17 additional duty cycles in accordance with 4.5.4.1
and 4.5.4.2.
4.4.5
Test data sheets. All test data shall be recorded on a
data sheet by the supplier and maintained as part of the inspection
records. In addition to the data requirements of 4.5.5, the data sheets
shall contain, but are not limited to, the following information:
a.
Date
b.
Interlock valve serial number
c.
Preproduction test sequence conducted
Operational tests: See 4.5.5
d.
Preproduction tests
e.
Low temperature operating
Pressure
psig
Disc severed
High temperature operating
Pressure
psig
Disc severed
Determination of defect or failure. Failure of a valve to
4.4.6
successfully pass any of the tests in 4.4 through 4.4.4.10 shall be
cause for rejection of the preproduction sample.
4.5
Acceptance inspection. Each valve produced under the con-
tract or purchase order shall be subjected to the following tests and
examinations:
4.5.1
Tests and examinations.
l
a.
Disc rupture and valve closure test
b.
Pilot cylinder leak test
l
12
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