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National Stock Number:
4820-00-474-1749
Federal Supply Class:
4820
National Item Identification Number:
004741749
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:
| 16892-2 | 81982 | HYDRO-AIRE AEROSPACE CORP |
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Techincal Specification:
| BONNET TYPE | INSIDE SCREW | | BONNET ATTACHMENT METHOD | INTEGRAL | | CONNECTION STYLE | GASKET SEAL (BOSS) ALL ENDS | | CONNECTION TYPE | THREADED INTERNAL BOSS ALL ENDS | | DISK LOADING METHOD | SPRING | | FEATURES PROVIDED | VALVE STEM LOCK SHIELD | | FLOW CONTROL DEVICE | DISK | | MATERIAL | ALUMINUM BODY | | MATERIAL | ALUMINUM SEAT | | MATERIAL | STEEL FLOW CONTROL DEVICE | | MATERIAL | STEEL STEM | | MAXIMUM OPERATING TEMP | 160.0 FAHRENHEIT SINGLE RESPONSE | | MAXIMUM OPERATING PRESSURE | 1500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MOUNTING FACILITY | THREADED FASTENER | | MOUNTING POSITION | HORIZONTAL OR VERTICAL | | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.500 INCHES 1ST END | | NOMINAL THREAD SIZE | 0.750 INCHES ALL ENDS | | SPECIAL FEATURES | HANDLE TURNS CW 90 DEG FOR OPEN POSITION | | STYLE DESIGNATOR | STRAIGHT THRU | | SUPPLEMENTARY FEATURES | OPTIONAL FLOW CONTROL DEVICE: STEM | | SURFACE TREATMENT | ANODIZE | | THREAD CLASS | 3B ALL ENDS | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | THREAD SERIES DESIGNATOR | UNF ALL ENDS | | VALVE OPERATION METHOD | MANUAL |
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