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Part Number

Part Number:
NSN:
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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
CWCD NOMINAL OUTSIDE DIAMETER 9.000 INCHES ALL ENDS
CBBL FEATURES PROVIDED BONNET PACKING
CWDF FLANGE FACE DESIGN RAISED STRAIGHT ALL ENDS
CWCQ BOLT HOLE NOMINAL DIAMETER 0.625 INCHES ALL ENDS
ADSR BONNET TYPE INSIDE SCREW
AWLS CONNECTION TYPE FLANGE ALL ENDS
ADZH RENEWABLE SEAT RING TYPE PRESSED-IN
TMQY FURNISHED ITEMS AND QUANTITY 1 HANDWHEEL
ARKN FLANGE SHAPE ROUND WITH HOLES ALL ENDS
ADST BONNET ATTACHMENT METHOD BOLTED
BBJX MOUNTING POSITION VERTICAL
AECS BOLT HOLE QUANTITY 8 ALL ENDS
STYL STYLE DESIGNATOR STRAIGHT THRU FLANGED ENDS
MATT MATERIAL STEEL UNS K02501 BODY
AGAV END ITEM IDENTIFICATION SUPPLY CLASS AOE
ADQU FLOW CONTROL DEVICE DISK
AQLR VALVE OPERATION METHOD MANUAL
CWCF FACE TO FACE DISTANCE 11.500 INCHES
MATT MATERIAL STEEL UNS K02501 FLOW CONTROL DEVICE
AZGM MOUNTING FACILITY BRACKET
CCFG VALVE SIZE 4.000 INCHES
MATT MATERIAL STEEL UNS K02501 STEM
CWDL RAISED FACE NOMINAL DIAMETER 6.188 INCHES ALL ENDS
CWCK NOMINAL THICKNESS 0.938 INCHES ALL ENDS
MATT MATERIAL GRAPHITE PACKING
CQGM MAXIMUM OPERATING PRESSURE 150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
CWDH RAISED FACE NOMINAL HEIGHT 0.063 INCHES ALL ENDS
CWCT BOLT CIRCLE NOMINAL DIAMETER 7.500 INCHES ALL ENDS

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