4820-01-058-9728, VALVE,LIFT-CHECK

National Stock Number:
4820-01-058-9728

Federal Supply Class:
4820

National Item Identification Number:
010589728

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:

3-8 81PM-1	86184	GRISWOLD INDUSTRIES
3227910	53711	NAVAL SEA SYSTEMS COMMAND
674M PL-2674B22	35795	LESLIE CONTROLS, INC.
73587	86184	GRISWOLD INDUSTRIES
73587J	86184	GRISWOLD INDUSTRIES
81PM-1	86184	GRISWOLD INDUSTRIES
SHIPALT DLG-6-11	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG

Techincal Specification:

DISK LOADING METHOD	SPRING
BONNET ATTACHMENT METHOD	BOLTED
BONNET TYPE	INSIDE SPRING
CONNECTION TYPE	UNTHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLE	SOCKET (PIPE) ALL ENDS
FLOW CONTROL DEVICE	DISK
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-STD-417,TYPE S,CLASS SB,GRADE 610 MIL STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-C-390,ALLOY D4/D FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281,CLASS B FED SPEC SINGLE MATERIAL RESPONSE STEM
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281,CLASS B FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIAL	COPPER ALLOY 922 BODY
MATERIAL	NICKEL ALLOY R-405 SEAT
MATERIAL	NICKEL ALLOY R-405 STEM
MATERIAL	RUBBER FLOW CONTROL DEVICE
PROPRIETARY CHARACTERISTICS	PACS
MEDIA FOR WHICH DESIGNED	WATER-OIL-GAS SINGLE RESPONSE
MOUNTING POSITION	HORIZONTAL OR VERTICAL
NOMINAL PIPE SIZE ACCOMMODATED	0.375 INCHES ALL ENDS
RENEWABLE SEAT RING TYPE	THREADED
SPECIAL FEATURES	DIAPHRAGM CHAMBER ACTIVATES DISK PER LINE PRESSURE DIFFERENTIAL
VALVE OPERATION METHOD	AUTOMATIC
STYLE DESIGNATOR	STRAIGHT THRU

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