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National Stock Number:
4820-01-626-3871
Federal Supply Class:
4820
National Item Identification Number:
016263871
Description:
VALVE,STOP-LIFT-CHECK
Detail:
A VALVE WITH A STEM THAT MAY BE MECHANICALLY ACTUATED TO THREE DIFFERENT POSITIONS BY ROTARY OR LINEAR MOTION. IN THE FIRST POSITION, THE VALVE DISK IS LOCATED AND LOCKED AGAINST THE SEAT PERMITTING NO FLUID FLOW THROUGH THE VALVE. IN THE SECOND 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 THIRD 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, LIFT-CHECK AND VALVE, STOP-CHECK.
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Manufacturer Information:
| 11-950 | 27195 | ACTRONICS INCORPORATED | | 60761-010 | 12536 | AMETEK THERMAL SYSTEMS INC | | 60761-010 | 3B1R2 | BELL BOEING JOINT PROJECT OFFICE |
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Techincal Specification:
| CONNECTION TYPE | THREADED CARTRIDGE 1ST END | | CONNECTION STYLE | PLAIN (SCREW-IN CARTRIDGE) 1ST END | | MATERIAL | ALUMINUM BODY | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY: VALVE BYPASS PRGB; DRAWING: VALVE, BYPASS RELIEF, TEMPERATURE AND PRESSURE PRGB | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL OUTSIDE DIAMETER | 1.875 INCHES 1ST END | | NOMINAL OUTSIDE DIAMETER | 1.375 INCHES 2ND END | | NOMINAL THREAD SIZE | 1.625 INCHES 1ST END | | SPECIAL FEATURES | VALVE FULLY OPEN AT 150 DEG F AND BELOW, STARTS TO CLOSE BETWEEN 150-A80 DEG F, AND IS FULLY CLOSED AT 180 DEG F; FLUID: OIL PER MIL-L-28699, MIL-L-7808 AND DOD-L-85734; PROOF PRESSURE: 450 PSIG; BURST PRESSURE: 750 PSIG; MATERIALS: CAP: ALUMINUM, ANODIZED, O-RING: FLUOROCARBON PER MIL-R-83248, VALVE PLUG: ALUMINUM, HARD ADN ANODIZED,ALTN: CRES, ACTUATOR HOUSING: ALUMINUM, NO FINISH, CUPS: BRASS, ALL OTHER METALS: STAINLESS STEEL, PASSIVATED | | VALVE OPERATION METHOD | AUTOMATIC | | STYLE DESIGNATOR | SCREW-IN CARTRIDGE | | SURFACE TREATMENT | ANODIZE | | THREAD CLASS | 3A 1ST END | | THREAD DIRECTION | RIGHT-HAND 1ST END | | THREAD QUANTITY PER INCH | 12 1ST END | | THREAD SERIES DESIGNATOR | UNJ 1ST END |
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