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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
30263 PIMA VALVE INC.

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
CBBL FEATURES PROVIDED BONNET PACKING
CBBL FEATURES PROVIDED BONNET PACKING
CWDF FLANGE FACE DESIGN RAISED STRAIGHT ALL ENDS
MEDA MEDIA FOR WHICH DESIGNED STEAM SINGLE RESPONSE
AWLS CONNECTION TYPE FLANGE ALL ENDS
CCFG VALVE SIZE 2.500 INCHES
ADSR BONNET TYPE OUTSIDE SCREW-YOKE
ARKN FLANGE SHAPE ROUND WITH HOLES ALL ENDS
MATT MATERIAL CHROMIUM ALLOY STEM
MATT MATERIAL STEEL UNS J03002 BODY
ADST BONNET ATTACHMENT METHOD BOLTED
MATT MATERIAL COBALT ALLOY SEAT
BBJX MOUNTING POSITION HORIZONTAL OR VERTICAL
STYL STYLE DESIGNATOR STRAIGHT THRU FLANGED ENDS
TEST TEST DATA DOCUMENT 81349-MIL-S-901 SPECIFICATION
ADQU FLOW CONTROL DEVICE DISK
ZZZT NONDEFINITIVE SPEC/STD DATA D COMPOSITION
CWCD NOMINAL OUTSIDE DIAMETER 7.000 INCHES ALL ENDS
MDCL MATERIAL DOCUMENT AND CLASSIFICATION ASTM A216 GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE BODY
AQLR VALVE OPERATION METHOD MANUAL
CWCK NOMINAL THICKNESS 0.875 INCHES ALL ENDS
CWCQ BOLT HOLE NOMINAL DIAMETER 0.750 INCHES ALL ENDS
CWDH RAISED FACE NOMINAL HEIGHT 0.062 INCHES ALL ENDS
CWCT BOLT CIRCLE NOMINAL DIAMETER 5.500 INCHES ALL ENDS
CWCF FACE TO FACE DISTANCE 8.500 INCHES
MATT MATERIAL COBALT ALLOY FLOW CONTROL DEVICE
AECS BOLT HOLE QUANTITY 4 ALL ENDS
CWDL RAISED FACE NOMINAL DIAMETER 4.125 INCHES ALL ENDS
AEHZ MAXIMUM OPERATING TEMP 500.0 DEG FAHRENHEIT SINGLE RESPONSE
CQGM MAXIMUM OPERATING PRESSURE 150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE

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