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National Stock Number:
4820-00-438-3962
Federal Supply Class:
4820
National Item Identification Number:
004383962
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:
| 23245-3 | 81982 | HYDRO-AIRE AEROSPACE CORP | | 667700 | 98897 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| DISK LOADING METHOD | SPRING | | FACE TO FACE DISTANCE | 3.531 INCHES | | FLOW CONTROL DEVICE | DISK | | MOUNTING FACILITY | THREADED FASTENER | | MOUNTING POSITION | HORIZONTAL OR VERTICAL | | SPECIAL FEATURES | HANDLE TURNS 90 DEG CCW TO OPEN POSITION | | STYLE DESIGNATOR | STRAIGHT THRU | | SUPPLEMENTARY FEATURES | OPTIONAL FLOW CONTROL DEVICE: STEM | | SURFACE TREATMENT | ANODIZE | | VALVE OPERATION METHOD | MANUAL |
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