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MIL-V-82444A(OS)
4.5.6 Test procedures, valve
4.5.6.1 Leakage at proof pressure.  Prior to assembly of a squib into
the valve body, the valve shall be subjected to a pressure of 4500 200
psig using dry inert gas.  Pressure shall be applied to the outlet port
for 5 minutes.  The valve shall be submerged in water and shall show no
evidence of leakage.  The pressure shall be released and the valve in-
spected for evidence of permanent distortion.  This test shall be repeated
with pressure applied for 5 minutes simultaneously to the inlet and outlet
ports.  The valve shall be re-examined for evidence of permanent distortion.
4.5.6.2 Bridge wire resistance.  The resistance of the squib bridge
wire shall be determined.  A current of 0.01 ampere maximum shall be
applied to the pins of the valve electrical connector.  Resistance shall
be not less than 0.6 ohm nor more than 1.2 ohms.
4.5.6.3 Insulation resistance.  The valve shall be subjected to a
potential of 500 5O volts rms, 60 Hz, for 1 second minimum, applied
between each electrical connector pin and the case. The pins may be
connected together to test simultaneously if desired.  Resistance shall
be 2 megohms minimum.
*
Ref: NAVSEA Dwg 2526708. All characteristics are
4.5.6.4 Configuration.
MINOR.
a. Materials.  Materials and finish shall be in accordance with
the drawing.
b. Dimensions.
.750 +0.005 -0.010 hex dim
-20 UNF-3A major dia MIN
-20 UNF-3A pitch dia
3/8-24 UNF-3B minor dia MAX
3/8-24 UNF-3B pitch dia
c. Marking.
The marking shall be in accordance with Dwg 2526708.
*
4.5.6.5  Operational test.  The sample valves shall be subjected to the
firing current test detailed in 4.4.4.11 and the visual inspection de-
tailed in 4.4.4.12.
4.5.7 Test procedures, sample squibs
4.5.7.1 Bridge
wire resistance, prior to firing.  The resistance of
the squib bridge
wire shall be determined. A current of 0.01 ampere
maximum shall be
applied to the bridge lead wires.  Resistance shall
be not less than
0.6 ohm nor more than 1.2 ohms,
16

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