4820-01-544-1839, VALVE,STOP-CHECK

National Stock Number:
4820-01-544-1839

Federal Supply Class:
4820

National Item Identification Number:
015441839

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:

4384536	80064	NAVAL SHIP SYSTEMS COMMAND
803-4384536-62A1AF	80064	NAVAL SHIP SYSTEMS COMMAND

Techincal Specification:

BONNET ATTACHMENT METHOD	THREADED
BONNET TYPE	INSIDE SCREW
CONNECTION TYPE	UNTHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLE	STREAMLINED WITH ONE BRAZING RING (TUBE) ALL ENDS
FURNISHED ITEMS AND QUANTITY	1 HANDWHEEL AND 2 TAILPIECE AND 2 NUT
FLOW CONTROL DEVICE	DISK
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM B164 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL	NICKEL ALLOY STEM
MAXIMUM OPERATING PRESSURE	400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP	150.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED	WATER-OIL-GAS SINGLE RESPONSE
MOUNTING POSITION	HORIZONTAL OR VERTICAL
NOMINAL PIPE SIZE ACCOMMODATED	1.250 INCHES ALL ENDS
SPECIAL FEATURES	BONNET O-RING OF NITRILE; APPLICATION: JP5; SHOCK AND VIBRATION REQUIREMENTS; END CONNECTIONS IAW NAVSEA DRAAWING 803-7063850
STYLE DESIGNATOR	STRAIGHT THRU
VALVE OPERATION METHOD	AUTOMATIC OR MANUAL

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