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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
ADSR BONNET TYPE OUTSIDE SCREW-YOKE
AHNC CONNECTION STYLE SOCKET (PIPE) ALL ENDS
ADST BONNET ATTACHMENT METHOD BOLTED
STYL STYLE DESIGNATOR STRAIGHT THRU
BBJX MOUNTING POSITION VERTICAL
ADQU FLOW CONTROL DEVICE DISK
AAAR NOMINAL PIPE SIZE ACCOMMODATED 1.500 INCHES ALL ENDS
MATT MATERIAL NICKEL FLOW CONTROL DEVICE
AQLR VALVE OPERATION METHOD MANUAL
CQGM MAXIMUM OPERATING PRESSURE 600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MATT MATERIAL NICKEL SEAT
MATT MATERIAL NICKEL STEM
AWLS CONNECTION TYPE UNTHREADED INTERNAL PIPE ALL ENDS
MDCL MATERIAL DOCUMENT AND CLASSIFICATION ASTM A105 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATT MATERIAL STEEL UNS K03504 BODY

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