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Part Number

Part Number:
NSN:
NIIN:
Item Name:
VALVE , STOP-CHECK

Definition:

A VALVE WITH A BOLT OR STEM THAT MAY BE MECHANICALLY ACTUATED TO TWO DIFFERENT POSITIONS BY ROTARY OR LINEAR MOTION. IN THE FIRST POSITION, THE VALVE DISK IS LOCATED AND LOCKED AGAINST THE SEAT PERMITTING NO FLUID FLOW THROUGH THE VALVE. IN THE SECOND POSITION, ONE SIDE OF THE VALVE DISK IS LOCATED AGAINST THE SEAT PERMITTING MOVEMENT OF THE DISK IN A MANNER THAT WILL ALLOW A FLOW OF FLUID IN ONE DIRECTION THROUGH THE VALVE. THE VALVE DISK MAY BE SPRING LOADED. IT MAY BE INLINE OR CARTRIDGE (MANIFOLD) DESIGN. SEE ALSO VALVE (1), LIFT-CHECK AND VALVE (1), STOP-LIFT-CHECK.

CAGE Information

Code Company
57574 VELAN VALVE CORPORATION DIV VELAN VA

Federal Supply Class

Title

VALVES, NONPOWERED

Inclusions:

INCLUDES AUTOMATIC NONPOWERED VALVES; GATE, GLOBE, ANGLE, CHECK, AND RELIEF VALVES; COCKS.

Exclusions:

EXCLUDES FIRE HYDRANTS (FSC 4210); SPRINKLER HEADS (FSC 4210); VALVES SPECIFICALLY DESIGNED FOR USE WITH FIRE FIGHTING EQUIPMENT (FSC 4210); PLUMBING EQUIPMENT, AND THE LIKE (FSC 4540).

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CWDF FLANGE FACE DESIGN RAISED STRAIGHT ALL ENDS
AWLS CONNECTION TYPE FLANGE ALL ENDS
ADSR BONNET TYPE OUTSIDE SCREW-YOKE
ARKN FLANGE SHAPE ROUND WITH HOLES ALL ENDS
BBJX MOUNTING POSITION HORIZONTAL
MATT MATERIAL STEEL CORROSION RESISTING STEM
CWCD NOMINAL OUTSIDE DIAMETER 7.500 INCHES ALL ENDS
CWDL RAISED FACE NOMINAL DIAMETER 5.000 INCHES ALL ENDS
ADST BONNET ATTACHMENT METHOD BOLTED
AQLR VALVE OPERATION METHOD AUTOMATIC
CWCT BOLT CIRCLE NOMINAL DIAMETER 6.000 INCHES ALL ENDS
STYL STYLE DESIGNATOR STRAIGHT THRU FLANGED ENDS
ADQU FLOW CONTROL DEVICE DISK
MATT MATERIAL STEEL FLOW CONTROL DEVICE
MATT MATERIAL STEEL BODY
CWCF FACE TO FACE DISTANCE 9.500 INCHES
CWCQ BOLT HOLE NOMINAL DIAMETER 0.750 INCHES ALL ENDS
CWDH RAISED FACE NOMINAL HEIGHT 0.062 INCHES ALL ENDS
MATT MATERIAL STEEL SEAT
AECS BOLT HOLE QUANTITY 4 ALL ENDS
CCFG VALVE SIZE 3.000 INCHES
CWCK NOMINAL THICKNESS 0.750 INCHES ALL ENDS

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