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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, POWERED

Inclusions:

INCLUDES ELECTRIC MOTOR OPERATED VALVES; HYDRAULIC OPERATED VALVES; SOLENOID OPERATED VALVES.

Exclusions:

EXCLUDES ENGINE INTAKE AND EXHAUST VALVES (FSC 2990, 2815); 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
CWCT BOLT CIRCLE NOMINAL DIAMETER 4.750 INCHES ALL ENDS
MATT MATERIAL STEEL CORROSION RESISTING SEAT
CWCQ BOLT HOLE NOMINAL DIAMETER 0.625 INCHES ALL ENDS
FEAT SPECIAL FEATURES INCLUDES TRI-TEC MODEL SE121T ELECTRIC ACTUATOR
AWLS CONNECTION TYPE FLANGE ALL ENDS
ARKN FLANGE SHAPE ROUND WITH HOLES ALL ENDS
MATT MATERIAL STEEL CORROSION RESISTING STEM
CWDF FLANGE FACE DESIGN PLAIN ALL ENDS
CWCF FACE TO FACE DISTANCE 8.000 INCHES
STYL STYLE DESIGNATOR STRAIGHT THRU FLANGED ENDS
CWCD NOMINAL OUTSIDE DIAMETER 6.000 INCHES ALL ENDS
AQLR VALVE OPERATION METHOD AUTOMATIC OR MANUAL
AGAV END ITEM IDENTIFICATION NEW CONSTRUCTION CVN77
MATT MATERIAL STEEL CORROSION RESISTING BODY
MEDA MEDIA FOR WHICH DESIGNED FUEL/OIL, HYDROCARBON SINGLE RESPONSE
CCFG VALVE SIZE 2.000 INCHES
CQGM MAXIMUM OPERATING PRESSURE 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
AECS BOLT HOLE QUANTITY 4 ALL ENDS
CWCK NOMINAL THICKNESS 0.625 INCHES ALL ENDS

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