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National Stock Number:
4820-01-125-4407
Federal Supply Class:
4820
National Item Identification Number:
011254407
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:
| 2620-902 | 96169 | ELECTRIC BOAT CORPORATION | | 2620-902ASSYBV1/2IN | 96169 | ELECTRIC BOAT CORPORATION | | 845-1889587ASSYBV1/2IN | 63686 | THE WALWORTH COMPANY | | 845-1889587ASSYBV1/2IN | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 845-1889587 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| MATERIAL | COPPER ALLOY BODY | | NICKEL ALLOY FLOW CONTROL DEVICE | | STYLE DESIGNATOR | STRAIGHT THRU | | FLOW CONTROL DEVICE | DISK | | MEDIA FOR WHICH DESIGNED | WATER-OIL-GAS SINGLE RESPONSE | | MAXIMUM OPERATING PRESSURE | 700.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | VALVE OPERATION METHOD | AUTOMATIC | | CONNECTION TYPE | UNTHREADED INTERNAL TUBE ALL ENDS | | CONNECTION STYLE | SOCKET WITH BRAZING RING (TUBE) ALL ENDS | | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.500 INCHES ALL ENDS | | MOUNTING POSITION | HORIZONTAL | | BONNET TYPE | INSIDE SCREW | | BONNET ATTACHMENT METHOD | THREADED |
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