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National Stock Number:
4820-00-358-1993
Federal Supply Class:
4820
National Item Identification Number:
003581993
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:
| 445-4601-6 | 21948 | FEDERAL SHIPBUILDING DRY DOCK CO | | S4824-3163146 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | S4824-3163146RH | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| BOLT CIRCLE NOMINAL DIAMETER | 15.000 INCHES 1ST END | | BOLT HOLE NOMINAL DIAMETER | 0.812 INCHES 1ST END | | BOLT HOLE QUANTITY | 16 1ST END | | BONNET TYPE | OUTSIDE SCREW-YOKE | | BONNET ATTACHMENT METHOD | BOLTED | | CONNECTION TYPE | FLANGE 1ST END | | FEATURES PROVIDED | BONNET PACKING | | FIRST CONNECTION FACE TO CENTERLINE DISTANCE | 13.375 INCHES | | FLANGE FACE DESIGN | PLAIN 1ST END | | FLANGE SHAPE | ROUND WITH HOLES 1ST END | | FLOW CONTROL DEVICE | DISK | | MATERIAL | COPPER ALLOY BODY | | MATERIAL | NICKEL ALLOY FLOW CONTROL DEVICE | | MATERIAL | NICKEL ALLOY SEAT | | MATERIAL | NICKEL ALLOY STEM | | MAXIMUM OPERATING PRESSURE | 50.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | WATER, SALT SINGLE RESPONSE | | MOUNTING POSITION | HORIZONTAL | | NOMINAL OUTSIDE DIAMETER | 16.562 INCHES 1ST END | | NOMINAL THICKNESS | 0.688 INCHES 1ST END | | RENEWABLE SEAT RING TYPE | THREADED | | SECOND CONNECTION FACE TO CENTERLINE DISTANCE | 13.375 INCHES | | SPECIAL FEATURES | RIGHT HAND LEVER ASSY | | STYLE DESIGNATOR | ANGLE FLANGED ENDS | | VALVE OPERATION METHOD | MANUAL | | VALVE SIZE | 12.000 INCHES |
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