4820-00-287-2778, VALVE,LIFT-CHECK

National Stock Number:
4820-00-287-2778

Federal Supply Class:
4820

National Item Identification Number:
002872778

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:

117A2IN	75144	JENKINS BROS
1B948-2IN	14448	HAMMOND VALVE CORP
890-2	33216	KENNEDY VALVE DIV OF ITT GRINNELL VALVE CO INC
FIG 231 2 IN	37239	LUNKENHEIMER CO
FIG231	37239	LUNKENHEIMER CO
FIG516-2IN	76873	OIC VALVE CORP
IB948 SIZE 2 IN	14448	HAMMOND VALVE CORP
MSS-SP-80	59646	MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS INDUSTRY INC

Techincal Specification:

BONNET TYPE	PACKING RETAINING
CONNECTION STYLE	PLAIN, OPTIONAL END (PIPE) ALL ENDS
CONNECTION TYPE	THREADED INTERNAL PIPE ALL ENDS
FLOW CONTROL DEVICE	DISK
OPERATING PRESSURE	300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE
OPERATING PRESSURE	150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM D1457 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL	COPPER ALLOY 836 SEAT
MATERIAL	COPPER ALLOY 836 BODY
MATERIAL	PLASTIC POLYTETRAFLUOROETHYLENE FLOW CONTROL DEVICE
MEDIA FOR WHICH DESIGNED	STEAM FIRST RESPONSE
MEDIA FOR WHICH DESIGNED	WATER-OIL-GAS SECOND RESPONSE
MOUNTING POSITION	HORIZONTAL
NOMINAL THREAD SIZE	2.000 INCHES ALL ENDS
VALVE OPERATION METHOD	MANUAL
STYLE DESIGNATOR	STRAIGHT THRU
THREAD DIRECTION	RIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATOR	NPT ALL ENDS

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