4820-01-545-8264, VALVE,STOP-CHECK

National Stock Number:
4820-01-545-8264

Federal Supply Class:
4820

National Item Identification Number:
015458264

Description:
VALVE,STOP-CHECK

Detail:
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.

Manufacturer Information:

S-235-Y-NR-.25IN	0YU24	PRIME SUPPLY CO.
S-235-Y-NR-.25IN	12168	NIBCO INC

Techincal Specification:

MATERIAL	COPPER ALLOY BODY
	PLASTIC POLYAMIDE PACKING
STYLE DESIGNATOR	STRAIGHT THRU
FLOW CONTROL DEVICE	DISK
MEDIA FOR WHICH DESIGNED	STEAM 1ST RESPONSE
	WATER-OIL-GAS 2ND RESPONSE
MAXIMUM OPERATING PRESSURE	150.0 POUNDS PER SQUARE INCH 1ST RESPONSE
	300.0 POUNDS PER SQUARE INCH 2ND RESPONSE
VALVE OPERATION METHOD	MANUAL
CONNECTION TYPE	UNTHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLE	SOCKET (PIPE) ALL ENDS
NOMINAL PIPE SIZE ACCOMMODATED	0.500 INCHES ALL ENDS
BONNET TYPE	PACKING RETAINING
FURNISHED ITEMS AND QUANTITY	1 HANDWHEEL
SPECIAL FEATURES	NIBCO VALVE, MODIFIED BY PRIME SUPPLY WITH THE ADDITION OF A NON-RETURN (NR) STOP CHECK FEATURE WHICH NIBCO NO LONGER MAKES. PACKING IS THE ONLY AVAILABLE MAINTENANCE ITEM. APPLICATION: COMPRESSED AIR
PART NAME ASSIGNED BY CONTROLLING AGENCY	INAVY: VALVE,GLOBE STOP CHK

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