MIL-V-81940-2
免费
..
15
December 1983
%
MILITARY SPECIFICATION SHEET
V&w, SAMPLING
AND
BLEED, HYDRAULIC, TYPE
II
SYSTEMS
NPTF FITTING
This specification is approved for use by the USA Belvoir Research and
Development Cent,er, Department of the
Army,
and is available for use by
all
Departments and Agencies of the Department
of
Defense.
The.complete requirements for procuring the valve described herein shall
konsist
of
this document and the latest issue in effect of specification
MIL-V-81940.
,
:.
.95O
MIN.
DIA.-
PUSH-
T
BUTTON
OR
KNURLED
KNOB
-1'
.
..
SEE
KNOB
OR
PUSHBUTTON
..
.:
'
I
!r.
,
"--i
2
.O0
MAX.
SPOUT
FQSITIOW QPTIONAL
PROVIDING
0.50
MIN.6
HELD
AND
IT
tS
PERPENDICULAR
TO
MAIN'AXfS
OF
VALVE.
%
CAP-SA€
J514,O7OI22
-I/8-INCH
SPOUT-SAE
j14,
I/B-INCH
37OFLARE
F
-_
TURN
KNOB
PUSHBUTTON
"
-
FIGURE
1.
Valve
(NPTF
Fitting)
.
I
Provided by IHS
Licensed by www.sepana.ir
Sale for only by www.sepana.ir, 05/26/2014 01:28:24 MDT
No reproduction or networking permitted without license from IHS
--``,````,,``,`,```,`,,```,-`-`,,`,,`,`,,`---
daneshlink.com
daneshlink.com
MIL-V-81940/2(ME)
I
NOTES
:
1.
Dimensions in inchesj unless-otherwise specified. See figure 1.
2.
Tolerances, decimals
+
,010,
angles'?
1
degree.
.
3.
Unless otherwise specTfied, surface roughness shall not exceed 125
microinches, per MIL-STD-10. Remove all burrs and break sharp edges
.O05
minimum.
4.
Material shall. be
in
accordance with the procurement specification.
REQVIRFNENTS
:
..
..
1.
..
2
.
3.
.
.
4.
5.
6.
7.
The valves. supplied under this military specification sheet
shall
conform
to
MIL-V-81940 of the latest issue in effect
on
date.
of
invitation for bid or request for proposal, except, the proof
pressure may be
600
psi, the leakage and valve operating pressure may
be
300
psi, and the impulse operating pressure may be
300
psi.
Valve shall be actuated by a rotary type knob or push button. Release
of the knob
or
button shall automatically return the valve to the
closed position. The rotary type knob shall be fully opened with a
maximum rotation of
180
degrees. The valve knob or button return
.
mechanism shall be independent
of
the valve poppet allowing the valve
poppet to close automatically by fluid pressure upon release or
failure
of
the-:knob or button return mechanism.
Torque required to actuate the rotary knob type valve to a full open
position shall not exceed
10
inch-pounds with operating pressure
applied to the valve inlet.
Force required
to
actuate the push button type valve to a full open
position-shall not exceed 25 pounds with operating pressure
on
applied to the valve inlet.
Valve shall have a protective cap with secondary sealing provisions.
Protective cap. shall include a security chain or equivalent
to
prevent
loss of the cap.
Valves qualified under MIL-V-81940 that differ only in the threaded
terminations will be acceptable under this slash sheet.
Part Number: The part number consists of the basic number
of
this
Specification sheet plus a dash.number indicating end fitting.
M81940/2-1 Valve with 1/4 inch NPTF fitting.'
8.
In addition to the marking required in the basic specification the
marking
of
valves that are limited to
300
psi operating pressure shall
include "NOT FOR AEROSPACE APPLICATIONS".
INTENDED USE: This valve is intended for ground equipment application and is
not intended for aerospace applications. See MIL-V-81940/1 for aerospace
applications.
Custodian:
Army
-ME
Review Interest
Army
-
AT
Preparing activity:
Army
-
&E
Project 1650-Al04
2
Provided by IHS
Licensed by www.sepana.ir
Sale for only by www.sepana.ir, 05/26/2014 01:28:24 MDT
No reproduction or networking permitted without license from IHS
--``,````,,``,`,```,`,,```,-`-`,,`,,`,`,,`---
daneshlink.com
daneshlink.com
摘要：
展开>>
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MIL-V-81940-2 是一项美国军用标准规范，主要针对特殊用途阀门的设计、制造、检验和验收要求，尤其适用于航空、航天及舰船等高可靠性环境下的流体控制系统。该标准明确了阀门在材料选择、压力等级、密封性能、抗腐蚀性及环境适应性方面的严格技术指标，确保其在极端温度、震动、冲击和电磁干扰条件下仍能保持稳定运行。MIL-V-81940-2 替代了早期相关军用标准，提升了零部件的通用性和互换性，同时与国际标准（如ISO、ASME）保持协调。对于从事军工、航空航天及高端工业设备制造的工程师和采购人员而言
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