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|  MIL-V-18318B
by measurement with a fast-responding small volume pressure transducer substituted
for the valve in the test setup. The tubing and fitting connecting the valve to the test
chamber shall be 3/16 inch size and shall be fabricated from corrosion-resistant
steel. The run of tubing between the valve and the test chamber shall not be bent more
than 4 degrees. The bleed valve shall be of a type which uses no organic material to
accomplish its seal and requires no interior lubrication for operation. The bleed
valve shall be installed so that when it is closed, the test chamber does not communicate
with the packing side of the valve.
Procedure (valve assembly) - The outlet connections of the
4.7.9.2
valve shall be sealed. The valve inlet shall be installed in the test setup shown on
Figure 2. The quick-acting valve shall be fully opened and the valve pressurized
with oxygen to a pressure of 2000 psig. This pressure shall be maintained for 30 seconds
and then released through the bleed valve. The valve shall be disconnected and examined
for indication of charring or deterioration of any nonmetallic material. The valve shall
pass the requirements specified in 3.7.8.
5.
PREPARATION FOR DELIVERY
Packaging - Packaging shall be Level A or C, as specified
5.1
(see 6.2).
5.1.1
Level A - Unless otherwise specified, each valve shall be
preserved in accordance with MIL-P-116, Method 1C-4. No contact preservative is
required. Each valve shall be sealed within a snug fitting bag of 0.0015 inch gage
material conforming to MIL-F-22191, Type III. The sealed valve shall be cushioned
and packaged within a waterproof fiber can with sealed metal ends. The valve shall be
cushioned in such a manner as to prevent damage to itself. Six unit packages shall be
packaged within a fiberboard container conforming to PPP-B-636, Type I, Weather
Resistant Class, Grade V3C or V3S. The manufacturer's seam shall be adhesive
sealed. All seams and joints shall be sealed with tape conforming to PPP-T-60.
Level C - The valve shall be packaged to afford the minimum
5.1.2
degree of protection necessary to prevent deterioration or damage during shipment
under normal environmental conditions and commercial modes of transportation.
5.2
Packing - Packing shall be Level A, B, or C, as specified
(see 6.2).
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