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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:
| MATERIAL | COPPER ALLOY BODY | | NICKEL ALLOY FLOW CONTROL DEVICE | | NICKEL ALLOY SEAT | | NICKEL ALLOY STEM | | STYLE DESIGNATOR | STRAIGHT THRU | | FLOW CONTROL DEVICE | DISK | | MEDIA FOR WHICH DESIGNED | STEAM 1ST RESPONSE | | WATER-OIL-GAS 2ND RESPONSE | | MAXIMUM OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH 1ST RESPONSE | | 400.0 POUNDS PER SQUARE INCH 2ND RESPONSE | | MAXIMUM OPERATING TEMP | 500.0 DEG FAHRENHEIT 1ST RESPONSE | | 150.0 DEG FAHRENHEIT 2ND RESPONSE | | VALVE OPERATION METHOD | MANUAL | | CONNECTION TYPE | UNTHREADED INTERNAL PIPE ALL ENDS | | CONNECTION STYLE | SOCKET (PIPE) ALL ENDS | | NOMINAL PIPE SIZE ACCOMMODATED | 0.750 INCHES ALL ENDS | | MOUNTING POSITION | HORIZONTAL | | RENEWABLE SEAT RING TYPE | THREADED | | BONNET TYPE | INSIDE SCREW | | BONNET ATTACHMENT METHOD | UNION | | FEATURES PROVIDED | BONNET PACKING |
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