4820-00-287-5992 VALVE,EXPANSION Index 4820-00-287-5999 VALVE,CHECK

National Stock Number:
4820-00-287-5998

Federal Supply Class:
4820

National Item Identification Number:
002875998

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:
060721368FAIRBANKS CO THE
0607 SZ 1/4 IN21368FAIRBANKS CO THE
20-1-414959CRANE CO DIV VALVE DIV
13333216KENNEDY VALVE DIV OF ITT GRINNELL VALVE CO INC
214237239LUNKENHEIMER CO
23737239LUNKENHEIMER CO
58292921450ARMY WEAPONS COMMAND ATTN AMSWE-REE-S
T08055RQL2DRS ENVIRONMENTAL SYSTEMS INC
553 1-476364MILWAUKEE VALVE CO, INC
5211678113SCOTT VALVE MFG CO
WWV51TYPE3CLASSAC0MPSITI0N181348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
B31682666STOCKHAM VALVES AND FITTINGS INC
T080590598ENGINEERED AIR SYSTEMS INC. DBA DRS SUSTAINMENT SYSTEMS


Techincal Specification:
MATERIALCOPPER ALLOY 922 BODY
STEEL CORROSION RESISTING FLOW CONTROL DEVICE
COPPER ALLOY 922 STEM
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B-61 ASSN STD SINGLE MATERIAL RESPONSE BODY
ASTM B-61 ASSN STD SINGLE MATERIAL RESPONSE STEM
STYLE DESIGNATORSTRAIGHT THRU
FLOW CONTROL DEVICEDISK
MEDIA FOR WHICH DESIGNEDSTEAM 1ST RESPONSE
WATER-OIL-GAS 2ND RESPONSE
MAXIMUM OPERATING PRESSURE125.0 POUNDS PER SQUARE INCH 1ST RESPONSE
200.0 POUNDS PER SQUARE INCH 2ND RESPONSE
VALVE OPERATION METHODAUTOMATIC
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLEPLAIN, OPTIONAL END (PIPE) ALL ENDS
THREAD SERIES DESIGNATORNPT ALL ENDS
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
MOUNTING POSITIONHORIZONTAL OR
VERTICAL
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODTHREADED
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEWWV51TYPE3CLASSAC0MPSITI0N1
MANUFACTURERS CODE21450
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE582929


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