MIL V 24439A (修正1) 用于气体服务的氧气氦气和氦气氧气混合物高压阀门 (1988年1月7日)

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时间:2023-03-23

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上传者:战必胜
MIL-V-24439A(SH)
AMENDMENT 1
7 January 1988
MILITARY SPECIFICATION
VALVES, OXYGEN, HELIUM AND HELIUM OXYGEN MIXTURE,
HIGH PRESSLW FOR GAS SERVICES
This amendment forms a part of
is approved for use within the
for use by all Departments and
MIL-V-24439A(SH) dated 14 March 1984, and
Naval Sea Systems Command and is available
Agencies of the Department of Defense.
PAGE 4
Table I, column 2, line 9: Under “Type A and B“ after, “Nickel-copper”
add:
“Bronze”.
Table 1, column 3, line 3:
Under “Type C and D“ after, “Nickel-copper”
add:
“Bronze”.
PAGE 8
4.3.1: Delete and substitute:
“4.3.1 High pressure gas. Unless otherwise specified herein, the high
pressure gas used In quality conformance testing and qualification testing
shall be water pumped nitrogen conforming to BB-N-411, or air equivalent in
dryness to BB-N-411 nitrogen, or commercially pure helium, as a minimum.”
PAGE 10
4.4.5, line 2: Delete: “helium”.
4.4.6, line 3: Delete: “Helium at”.
Preparing activity:
Navy - SH
(Project 4820-N021)
AMiC N/A
FSC 4820
DISTRIBUTION STATEMENT A Approved for public release; distribution unlimited
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