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National Stock Number:
4820-00-679-1649
Federal Supply Class:
4820
National Item Identification Number:
006791649
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:
| 68-44-1 | 98391 | ARKWIN INDUSTRIES, INC. | | 697129-3 | 98897 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| BONNET TYPE | PACKING RETAINING | | DISK LOADING METHOD | SPRING | | FLOW CONTROL DEVICE | DISK | | MOUNTING POSITION | HORIZONTAL | | RENEWABLE SEAT RING TYPE | THREADED | | STYLE DESIGNATOR | STRAIGHT THRU | | SPECIAL FEATURES | STEM TURNS 60 DEG TOLIFT DISK | | VALVE OPERATION METHOD | AUTOMATIC |
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