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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:
| BONNET TYPE | PACKING RETAINING | | CONNECTION STYLE | PLAIN (PIPE) ALL ENDS | | CONNECTION TYPE | THREADED EXTERNAL PIPE ALL ENDS | | MATERIAL | COPPER ALLOY STEM | | MATERIAL | COPPER ALLOY BODY | | MATERIAL | RUBBER SYNTHETIC SEAT | | MAXIMUM OPERATING TEMP | 250.0 CELSIUS SINGLE RESPONSE | | MAXIMUM OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | WATER-OIL-GAS SINGLE RESPONSE | | MOUNTING FACILITY | PANEL | | MOUNTING POSITION | HORIZONTAL | | NOMINAL THREAD SIZE | 0.125 INCHES ALL ENDS | | STYLE DESIGNATOR | STRAIGHT THRU | | SUPPLEMENTARY FEATURES | FLOW CONTROL DEVICE: STEM | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | THREAD SERIES DESIGNATOR | NPT ALL ENDS | | VALVE OPERATION METHOD | MANUAL |
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