MIL-DTL-9370E
3.5 Performance.
3.5.1 Minimum operating acceleration force. When tested as specified in 4.6.2, the
acceleration force required to open the valve to permit flow greater than 0.01 liter per minute
shall be between 1.5g and 2g (see figure 1, 6.5.1 and 6.5.2).
3.5.2 Outlet pressure regulation. When tested as specified in 4.6.3, the outlet pressure shall
be within the range specified on figure 1 for the acceleration force being applied. When the
force is being increased, the outlet pressure shall reach the specified range within 2 seconds after
application of the force. When the force is being decreased, the outlet pressure shall reach the
specified range within 5 seconds after decreasing the force. The outlet pressure shall not
fluctuate greater than + 0.2 inch of mercury at any test point.
3.5.3 Leakage. When tested as specified in 4.6.4, the leakage shall be not greater than 0.01
liter per minute.
3.5.4 Anti-chattering. When tested as specified in 4.6.5, the valve shall not chatter.
3.5.5 Response time. When tested as specified in 4.6.6, the outlet pressure shall reach the
following specified values within the indicated response time specified in table I.
TABLE I. Outlet pressure and response time.
Force applied from
Outlet pressure
Response time
1g to 6g
As specified on figure 1 for 6g
3 seconds
6g to 1g
0
5 seconds
1g to 10g
As specified on figure 1 for 10g
5 seconds
10g to 1g
0
5 seconds
3.5.6 High temperature exposure. The valve shall pass the high temperature test specified
in 4.6.7.
3.5.7 Low temperature exposure. The valve shall pass the low temperature test specified in
4.6.8.
3.5.8 Vibration. The valve shall pass the vibration test specified in 4.6.9.
3.5.9 Endurance. The valve shall pass the endurance test specified in 4.6.10.
3.5.10 Salt fog. The valve shall not corrode excessively when subjected to the salt fog test
specified in 4.6.11.
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