4820-01-368-1777, VALVE,LIFT-CHECK

National Stock Number:
4820-01-368-1777

Federal Supply Class:
4820

National Item Identification Number:
013681777

Description:
VALVE,LIFT-CHECK

Detail:
A VALVE WITH A STEM THAT MAY BE MECHANICALLY ACTUATED TO TWO DIFFERENT POSITIONS BY ROTARY OR LINEAR MOTION. IN THE FIRST 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. IN THE SECOND POSITION, THE VALVE DISK IS LIFTED FROM THE SEAT TO ALLOW A FLOW OF FLUID IN EITHER DIRECTION THROUGH THE VALVE. THE VALVE DISK MAY BE SPRING LOADED. SEE ALSO VALVE, STOP-CHECK AND VALVE, STOP-LIFT-CHECK.

Manufacturer Information:

211072427	53711	NAVAL SEA SYSTEMS COMMAND
2177934-C451	53711	NAVAL SEA SYSTEMS COMMAND
803-2177934-C451	53711	NAVAL SEA SYSTEMS COMMAND
83-2177934-C451	80064	NAVAL SHIP SYSTEMS COMMAND
803-2177934	80064	NAVAL SHIP SYSTEMS COMMAND

Techincal Specification:

CONNECTION TYPE	UNTHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLE	SOCKET (PIPE) ALL ENDS
FURNISHED ITEMS AND QUANTITY	1 HANDWHEEL
FLOW CONTROL DEVICE	DISK
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-C-15726 MIL SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM
MATERIAL	COPPER ALLOY BODY
MATERIAL	NICKEL ALLOY SEAT
MATERIAL	NICKEL ALLOY STEM
MAXIMUM OPERATING TEMP	250.0 FAHRENHEIT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE	700.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED	WATER-OIL-GAS SINGLE RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED	0.750 INCHES ALL ENDS
VALVE OPERATION METHOD	MANUAL

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