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:

BONNET TYPE	PACKING RETAINING
CONNECTION STYLE	SOCKET (PIPE) ALL ENDS
CONNECTION TYPE	UNTHREADED INTERNAL PIPE ALL ENDS
FURNISHED ITEMS AND QUANTITY	1 HANDWHEEL
FLOW CONTROL DEVICE	DISK
PART NAME ASSIGNED BY CONTROLLING AGENCY	INAVY: VALVE,GLOBE STOP CHK
MATERIAL	COPPER ALLOY BODY
MATERIAL	PLASTIC POLYAMIDE NYLON PACKING
MEDIA FOR WHICH DESIGNED	STEAM FIRST RESPONSE
MEDIA FOR WHICH DESIGNED	WATER-OIL-GAS SECOND RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED	0.500 INCHES ALL ENDS
OPERATING PRESSURE	150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE
OPERATING PRESSURE	300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE
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
VALVE OPERATION METHOD	MANUAL
STYLE DESIGNATOR	STRAIGHT THRU

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