4820-00-255-0082, VALVE,LIFT-CHECK

National Stock Number:
4820-00-255-0082

Federal Supply Class:
4820

National Item Identification Number:
002550082

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:

20 1-8	14959	CRANE CO DIV VALVE DIV
9904299 1-8	14954	MAGNETIC METALS USA SUB OF INDUCTOTHERM CORP

Techincal Specification:

BONNET ATTACHMENT METHOD	INTEGRAL
BONNET TYPE	INSIDE SCREW
CONNECTION STYLE	PLAIN, OPTIONAL END (PIPE) ALL ENDS
CONNECTION TYPE	THREADED INTERNAL PIPE ALL ENDS
DISK LOADING METHOD	WEIGHT
FLOW CONTROL DEVICE	BALL
OPERATING PRESSURE	200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE
OPERATING PRESSURE	125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-C-390,ALLOY B5/D FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-C-390,ALLOY B5/D FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIAL	COPPER ALLOY 836 SEAT
MATERIAL	COPPER ALLOY 836 BODY
MATERIAL	STEEL CORROSION RESISTING FLOW CONTROL DEVICE
MEDIA FOR WHICH DESIGNED	STEAM SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED	WATER-OIL-GAS SECOND RESPONSE
MOUNTING POSITION	HORIZONTAL
NOMINAL THREAD SIZE	0.125 INCHES ALL ENDS
VALVE OPERATION METHOD	AUTOMATIC
STYLE DESIGNATOR	STRAIGHT THRU
THREAD DIRECTION	RIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATOR	NPT ALL ENDS

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