MIL-DTL-9370E
3.4.1 Filter element. If the valve design is a piston type, the valve shall contain a filter,
AN6235 or equivalent, positioned so that all inlet air passes through the filter before reaching the
piston.
3.4.2 Relief valve. The valve design shall include a pressure relief valve that will relieve at
pressures between 8.7 to 11 psig and shall not allow the suit or outlet pressure to be greater than
11 psig.
3.4.3 Lubrication. The valve shall be designed and constructed in such manner that no
lubrication is required.
3.4.4 Inlet screen. The valve shall contain a corrosion-resistant steel, 30 by 30, maximum
mesh, 0.010 inch minimum wire diameter inlet screen. All inlet air shall pass through the screen.
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OUTLET PRESSURE PSI
Figure 1. Outlet pressure vs. acceleration force.
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