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National Stock Number:
4820-00-806-7409
Federal Supply Class:
4820
National Item Identification Number:
008067409
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:
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Techincal Specification:
| MATERIAL | COPPER ALLOY BODY | | PLASTIC FLOW CONTROL DEVICE | | COPPER ALLOY SEAT | | COPPER ALLOY STEM | | STYLE DESIGNATOR | STRAIGHT THRU W/OFFSET | | OFFSET DISTANCE | 0.500 INCHES | | FLOW CONTROL DEVICE | DISK | | MAXIMUM OPERATING PRESSURE | 500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | VALVE OPERATION METHOD | AUTOMATIC | | CONNECTION TYPE | UNTHREADED INTERNAL TUBE ALL ENDS | | CONNECTION STYLE | SOCKET (TUBE) ALL ENDS | | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.500 INCHES ALL ENDS | | MOUNTING POSITION | HORIZONTAL | | BONNET TYPE | INSIDE SCREW | | BONNET ATTACHMENT METHOD | INTEGRAL | | DISK LOADING METHOD | SPRING |
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