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National Stock Number:
4820-01-338-3550
Federal Supply Class:
4820
National Item Identification Number:
013383550
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.
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Manufacturer Information:
| 17B1N8012-501 | 88277 | THE BOEING COMPANY | | 596000-16 | 83533 | ESSEX INDUSTRIES INC |
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Techincal Specification:
| CONNECTION TYPE | THREADED INTERNAL PIPE ALL ENDS | | CONNECTION STYLE | PLAIN, OPTIONAL END (PIPE) ALL ENDS | | MAXIMUM OPERATING TEMP | 105.0 FAHRENHEIT SINGLE RESPONSE | | MAXIMUM OPERATING PRESSURE | 430.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | OXYGEN, GASEOUS SINGLE RESPONSE | | NOMINAL THREAD SIZE | 0.125 INCHES ALL ENDS | | SPECIAL FEATURES | VALVE DIMENSIONS: 3.260 IN. FROM BOTTOM OF VALVE TO TOP OF TOGGLE IN VERTICAL POSITION BY 1.490 IN. MIN TO 1.500 IN. MAX BY 0.750 IN.; DESIGNED FOR AIRBORNE USE; MAGNESSIUM AND TITANIUM ALLOYS SHALL NOT BE USED IN CONSTRUCTION OF THIS VALVE; CONNECTIONDATA: 0.125-27 ANPT | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | THREAD SERIES DESIGNATOR | ANPT ALL ENDS | | VALVE OPERATION METHOD | MANUAL |
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