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National Stock Number:
4820-00-202-9880
Federal Supply Class:
4820
National Item Identification Number:
002029880
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:
| 3665-23PCV12 | 96169 | ELECTRIC BOAT CORPORATION | | 571-4804-1302637PCV12 | 53711 | NAVAL SEA SYSTEMS COMMAND | | SC154WS3-4 | 63686 | THE WALWORTH COMPANY | | 571-4804-1302637PCV12 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| BONNET TYPE | INSIDE SCREW | | BONNET ATTACHMENT METHOD | UNION | | CONNECTION STYLE | SOCKET (PIPE) ALL ENDS | | CONNECTION TYPE | UNTHREADED INTERNAL PIPE ALL ENDS | | FEATURES PROVIDED | BONNET PACKING | | FLOW CONTROL DEVICE | DISK | | OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE | | OPERATING PRESSURE | 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE | | MATERIAL | COPPER ALLOY BODY | | MATERIAL | NICKEL ALLOY FLOW CONTROL DEVICE | | MATERIAL | NICKEL ALLOY SEAT | | MATERIAL | NICKEL ALLOY STEM | | MAXIMUM OPERATING TEMP | 500.0 FAHRENHEIT FIRST RESPONSE | | MAXIMUM OPERATING TEMP | 150.0 FAHRENHEIT SECOND RESPONSE | | MEDIA FOR WHICH DESIGNED | STEAM FIRST RESPONSE | | MEDIA FOR WHICH DESIGNED | WATER-OIL-GAS SECOND RESPONSE | | MOUNTING POSITION | HORIZONTAL | | NOMINAL PIPE SIZE ACCOMMODATED | 0.750 INCHES ALL ENDS | | RENEWABLE SEAT RING TYPE | THREADED | | VALVE OPERATION METHOD | MANUAL | | STYLE DESIGNATOR | STRAIGHT THRU |
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