4820-01-134-8795, VALVE,STOP-CHECK

National Stock Number:
4820-01-134-8795

Federal Supply Class:
4820

National Item Identification Number:
011348795

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:

803-2177934	80064	NAVAL SHIP SYSTEMS COMMAND
803-2177934-B33	53711	NAVAL SEA SYSTEMS COMMAND
SC251PWS 1-2IN	63686	THE WALWORTH COMPANY
803-2177934-B336	80064	NAVAL SHIP SYSTEMS COMMAND
803-2177934-B336AF	80064	NAVAL SHIP SYSTEMS COMMAND

Techincal Specification:

BONNET TYPE	INSIDE SCREW
BONNET ATTACHMENT METHOD	THREADED
CONNECTION STYLE	STREAMLINED WITH ONE BRAZING RING (TUBE) ALL ENDS
CONNECTION TYPE	UNTHREADED INTERNAL TUBE ALL ENDS
FURNISHED ITEMS AND QUANTITY	1 HANDWHEEL
FEATURES PROVIDED	VALVE STEM LOCK SHIELD
FLOW CONTROL DEVICE	DISK
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-C-15726, COMP 70-30 MIL SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281, CLASS B FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281, CLASS B FED SPEC SINGLE MATERIAL RESPONSE STEM
MATERIAL	NICKEL ALLOY BODY
MATERIAL	NICKEL ALLOY FLOW CONTROL DEVICE
MATERIAL	NICKEL ALLOY STEM
MEDIA FOR WHICH DESIGNED	WATER-OIL-GAS SINGLE RESPONSE
MOUNTING POSITION	HORIZONTAL OR VERTICAL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED	0.500 INCHES ALL ENDS
OPERATING PRESSURE	700.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
VALVE OPERATION METHOD	AUTOMATIC
STYLE DESIGNATOR	STRAIGHT THRU

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