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National Stock Number:
4820-01-527-2852
Federal Supply Class:
4820
National Item Identification Number:
015272852
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:
| 104P3.6 | 79067 | APCO/VALVE & PRIMER CORP | | 9543607-CRF | 41UJ8 | DEZURIK, INC. | | 9543607-CRF | 79067 | APCO/VALVE & PRIMER CORP | | S-100 MODIFIED | 79067 | APCO/VALVE & PRIMER CORP |
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Techincal Specification:
| BONNET ATTACHMENT METHOD | BOLTED | | BONNET TYPE | INSIDE SCREW | | DISK LOADING METHOD | WEIGHT | | FURNISHED ITEMS AND QUANTITY | 1 HANDLE | | FLOW CONTROL DEVICE | DISK | | MOUNTING POSITION | HORIZONTAL OR VERTICAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | RUBBER FLAPPER SWING CHECK VALVE WITH BACKFLOW DEVICE | | SPECIAL FEATURES | MODIFIED FROM COMMERICAL VALVE BY MATERIAL OF BODY, COVER, COVER BOLTS OF BRONZE, GUIDE STOP SCREW OF SS, HANDLEBAR OF BRONZE (DET 1, 2, 4, 18, 23); FLANGES IAW MIL-F-20042 WHICH DIFFERS FROM THEIR COMMERCIAL VALVES BY DIMENSIONS OF THE O.D., BOLT CIRCLE DIAMETER AND BOLT HOLE;MEETS HIGH SHOCK REQUIREMENTS IAW MIL-S-901D FOR LIGHTWEIGHT, GRADE A, SHOCK-PROOF EQUIPMENT CLASS I, MOUNTING FIXTURE 4C, LOCATION: HULL, ORIENTATION UNRESTRICTED. | | STYLE DESIGNATOR | STRAIGHT THRU | | VALVE OPERATION METHOD | AUTOMATIC OR MANUAL |
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