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|  MIL-V-81995/2(AS)
Rate of Pressure Rise: The initial pressure rise shall be limited
to a maximum of 22 psi/sec 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.
Internal shall not exceed 0.3 lb/rein and total shall not
Leakage:
exceed 0.5 lb/rein when subjected to inlet air at 172 psig at 680 30F
(360 17C).
Altitude:
40,000 ft
a.
Maximum operating:
b.
Maximum nonoperating:
60,000 ft
Ambient Temperature Range:
a.
Operating:
-65 to +250F (-54 to +121C)
b.
Nonoperating:
-65 to +370F (-54 to +188C) (with 5-minute
transients of 415F/218C).
Flight and Ground Loading:
a.
Flight maneuvering:
30g
Shear:
50 lb
b.
100 lb
Axial:
c.
d.
Moment:
30 in-lb
Vibration:
See Figure 2.
Military Part Number: The military part number of the valve shall
be M81995/2. This valve supersedes ATSCV-2.
Preparing Activity
Navy-AS
(Project No. 2995-N030)
2
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