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National Stock Number: 4820-00-071-1871
Federal Supply Class: 4820
National Item Identification Number: 000711871
Description: VALVE,STOP-CHECK
Detail: A VALVE WITH A BOLT OR STEM THAT MAY BE MECHANICALLY ACTUATED TO TWO 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. THE VALVE DISK MAY BE SPRING LOADED. IT MAY BE INLINE OR CARTRIDGE (MANIFOLD) DESIGN. SEE ALSO VALVE (1), LIFT-CHECK AND VALVE (1), STOP-LIFT-CHECK.
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Manufacturer Information:
| 375-1-1-4 | 82667 | STRATAFLO PRODUCTS, INC |
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Techincal Specification:
| CONNECTION STYLE | PLAIN, OPTIONAL END (PIPE) FIRST END | | DISK LOADING METHOD | SPRING | | FLOW CONTROL DEVICE | POPPET | | OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | MATERIAL | COPPER ALLOY BODY | | MATERIAL | COPPER ALLOY SEAT | | MATERIAL | COPPER ALLOY STEM | | MATERIAL | RUBBER BUTADIENE-STYRENE CLASS SBR FLOW CONTROL DEVICE | | MEDIA FOR WHICH DESIGNED | NITROGEN, TETRAOXIDE SINGLE RESPONSE | | NOMINAL PIPE SIZE ACCOMMODATED | 1.250 INCHES FIRST END | | NOMINAL THREAD SIZE | 1.250 INCHES FIRST END | | VALVE OPERATION METHOD | AUTOMATIC | | STYLE DESIGNATOR | STRAIGHT THRU | | THREAD DIRECTION | RIGHT-HAND FIRST END | | THREAD SERIES DESIGNATOR | NPT FIRST END | | THREAD QUANTITY PER INCH | 11-1/2 FIRST END |
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