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mil DTL 868 1a 详细规范 液压方向控制四通阀 0 12 gpm 一般规范 (2014年1月14日) [取代 mil v 868 1]

ID：51622

大小：0.83 MB

页数：36页

时间：2023-03-23

金币：20

上传者：战必胜
AMSC N/A FSC 4810
INCH-POUND
MIL-DTL-868/1A(SH)
14 January 2014
SUPERSEDING
MIL-V-868/1(SH)
21 July 1989
DETAIL SPECIFICATION SHEET
VALVES, HYDRAULIC DIRECTIONAL CONTROL, FOUR-WAY, 0-12 GPM
Reinstated after 14 January 2014 and may be used
for new and existing designs and acquisitions.
This specification is approved for use by the Naval Sea Systems Command, Department of the Navy, and is
available for use by all Departments and Agencies of the Department of Defense.
The requirements for acquiring the product described herein shall consist of this specification sheet and
MIL-DTL-868.
1. GENERAL
1.1 Classification. Directional control valves covered by this specification sheet shall be designated using Part
or Identifying Numbers (PIN) as follows (see table V for examples of PINs):
M
868
/1
-
WW
T
YYY
ZZ
X
Prefix to
indicate a
Military
specification
Specific
ation
number
Applicable
specification
sheet number
(see 1.1.1)
Left side
operator
(see 1.1.2)
Spool type
(see 1.1.3)
Spool flow
paths (see
1.1.4)
Right side
operator
(see 1.1.5)
Fatigue
(see
1.1.6)
1.1.1 Applicable specification sheet number. The applicable specification sheet number designatesthevalve’s
performance characteristics (flow range, pressure losses, leakage, etc.) and mounting interface configuration.
Figures 1, 2, and 3 define the mounting interface configuration and maximum dimensions for valves with various
types of operators. Control valves covered by this specification sheet shall be of the integral slide and sleeve type.
1.1.2 Left side valve operator. The left side valve operator shall be designated by a two-character code. The
left hand operator shall be designated as the actuator shown to the left of the spool symbol. On the actual valve, this
corresponds to the actuator closest to the return port. For valves operated by a handle or lever, the two-character
code shall be in accordance with table I. The first character designates the type of operator in addition to the handle.
The second character is a number (0 to 7) and indicates the positions, if any, in which the valve spool may be
latched or detented. For valves without an operating handle, the left side operator shall be designated by a
two-character code in accordance with table II. The first letter designates the primary operator and the second letter
identifies secondary operator(s), if any. See 1.1.7 for special operator configurations not covered by tables I and II.
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