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|  MIL-V-81995/1(AS)
Rate of Pressure Rise: The initial pressure rise shall be limited
to a maximum of 22 psi/see during the first 0.5 second after the first
indication of pressure rise and thereafter the pressure rise shall be
smooth and at a positive rate.
Opening and Closing Times: Open 5 seconds maximum; close 0.5
second maximum.
Pressure Drop:
Pressure drop shall not exceed 0.3 psi.
Leakage: Internal shall not exceed 0.3 lb/min and total shall not
exceed 0.5 lb/rein when subjected to inlet air at 172 psig at 600
30F
(316 16C).
Altitude:
a.
Maximum operating:
30,000 ft
Maximum nonoperating: 55,000 ft
b.
Ambient Temperature Range:
Operating:
a.
-65 to
(-54 to
b.
Nonoperating:
-65 to
(-54 to +150C)
Flight and Ground Loading:
30g
a.
Flight maneuvering:
50 lb
Shear:
b.
100 lb
c.
Axial:
d.
Moment:
300 in-lb
Vibration:
See Figure 2.
Military Part Number: The military part number of the valve shall
be M81995/1. This valve supersedes ATSCV-1.
Preparing Activity
Navy - AS
(Project No. 2995-N030)
2
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