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National Stock Number:
4820-00-220-2477
Federal Supply Class:
4820
National Item Identification Number:
002202477
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:
| 1802285 | 21877 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 2305X2 | 25299 | HYDRAULIC CONTROLS, INC. | | ZPC1000015 | 58328 | ZWICK ENERGY RESEARACH ORGANIZATION INC |
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Techincal Specification:
| MATERIAL | COPPER ALLOY BODY | | RUBBER SYNTHETIC SEAT | | COPPER ALLOY STEM | | STYLE DESIGNATOR | STRAIGHT THRU | | MEDIA FOR WHICH DESIGNED | WATER-OIL-GAS SINGLE RESPONSE | | MAXIMUM OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MAXIMUM OPERATING TEMP | 250.0 DEG CELSIUS SINGLE RESPONSE | | VALVE OPERATION METHOD | MANUAL | | CONNECTION TYPE | THREADED EXTERNAL PIPE ALL ENDS | | CONNECTION STYLE | PLAIN (PIPE) ALL ENDS | | THREAD SERIES DESIGNATOR | NPT ALL ENDS | | NOMINAL THREAD SIZE | 0.125 INCHES ALL ENDS | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | MOUNTING POSITION | HORIZONTAL | | BONNET TYPE | PACKING RETAINING | | MOUNTING FACILITY | PANEL | | SUPPLEMENTARY FEATURES | FLOW CONTROL DEVICE: STEM |
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