MIL-PRF-62382C
4.5.4.6 Low pressure leakage. To determine conformance to 3.4.4, alternately apply a
pressure of 35 kPa (5 psi) to the valve inlet, then 200 kPa (30 psig) to the outlet port. There shall
be no evidence of leakage through the valve.
4.5.5 Environmental.
4.5.5.1 High temperature. To determine conformance to 3.4.5.1, the valve shall be
heated in a chamber until its temperature stabilizes at +70 °C (+160 °F). Remove the valve from
the chamber and allow it to cool to ambient room temperature. The valve shall meet the
applicable requirement of 3.4.5.1. Next, heat the valve in a chamber until its temperature
stabilizes at +60 °C (+140 °F). The valve shall meet the applicable requirement of 3.4.5.1 at the
stabilized temperature and after it is cooled to ambient room temperature.
4.5.5.2 Low temperature. To determine conformance to 3.4.5.2, the valve shall be
cooled in a chamber until its temperature stabilizes at -54 °C (-65 °F). Remove the valve from
the chamber and allow it to warm to ambient room temperature. The valve shall meet the
applicable requirement of 3.4.5.2. Next, cool the valve in a chamber until its temperature
stabilizes at -32 °C (-25 °F). The valve shall meet the applicable requirement of 3.4.5.2 at the
stabilized temperature and after it is warmed to ambient room temperature.
4.5.5.3 Fluid temperature. Conformance to 3.4.5.3 shall be determined during testing in
accordance with 4.5.5.1 and 4.5.5.2.
4.5.5.4 Salt fog. To determine conformance to 3.4.5.4, the valve shall be exposed to a
salt fog environment in accordance with ASTM B117.
4.5.5.5 Shock resistance. To determine conformance to 3.4.5.5, the valve shall be
subjected to a half sine shock pulse as shown in figure 1.
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