4820-01-584-7899, VALVE,STOP-CHECK

National Stock Number:
4820-01-584-7899

Federal Supply Class:
4820

National Item Identification Number:
015847899

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:

162B-A20 .50IN	76364	MILWAUKEE VALVE CO, INC
162B-A20L 12	76364	MILWAUKEE VALVE CO, INC
803-4384536-32B AF MODIFIED	80064	NAVAL SHIP SYSTEMS COMMAND

Techincal Specification:

MATERIAL	COPPER ALLOY 922 BODY
	NICKEL ALLOY FLOW CONTROL DEVICE
	GRAPHITE PACKING
STYLE DESIGNATOR	STRAIGHT THRU
FLOW CONTROL DEVICE	DISK
MEDIA FOR WHICH DESIGNED	WATER-OIL-GAS SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE	400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP	250.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD	AUTOMATIC OR
	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
DISK LOADING METHOD	WEIGHT
FURNISHED ITEMS AND QUANTITY	1 HANDWHEEL
SPECIAL FEATURES	SHOCK QUALIFIED
SPECIFICATION/STANDARD DATA	80064-803-4384536 GOVERNMENT SPECIFICATION
NONDEFINITIVE SPEC/STD DATA	3 SIZE AND
	2 TYPE AND
	B CLASS
DEPARTURE FROM CITED DOCUMENT	AS DIFFERENTIATED BY BONNET O-RING OF FLUOROCARBON IAW AMS-R-83248 TY I CL 1 AND HANDWHEEL NUT IS LOW-LEAD BRASS
PART NAME ASSIGNED BY CONTROLLING AGENCY	VALVE, GLOBE STOP CHECK

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