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National Stock Number:
4820-00-639-9121
Federal Supply Class:
4820
National Item Identification Number:
006399121
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:
| 71-S-103 | 71905 | DERBYSHIRE MACHINE & TOOL CO | | RS11-2 150-350FLGD | 35795 | LESLIE CONTROLS, INC. |
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Techincal Specification:
| BOLT CIRCLE NOMINAL DIAMETER | 4.625 INCHES 1ST END | | BONNET TYPE | EXPOSED SPRING | | BONNET ATTACHMENT METHOD | BOLTED | | BOLT HOLE NOMINAL DIAMETER | 0.688 INCHES 1ST END | | BOLT HOLE QUANTITY | 6 1ST END | | CONNECTION TYPE | FLANGE 1ST END | | DISK LOADING METHOD | SPRING | | FACE TO FACE DISTANCE | 8.125 INCHES | | FEATURES PROVIDED | VALVE STEM LOCK SHIELD | | FLANGE FACE DESIGN | PLAIN 1ST END | | FLANGE SHAPE | ROUND WITH HOLES 1ST END | | FLOW CONTROL DEVICE | DISK | | MATERIAL | COBALT ALLOY FLOW CONTROL DEVICE | | MATERIAL | COBALT ALLOY SEAT | | MATERIAL | STEEL BODY | | MOUNTING POSITION | HORIZONTAL | | NOMINAL OUTSIDE DIAMETER | 5.938 INCHES 1ST END | | NOMINAL THICKNESS | 0.688 INCHES 1ST END | | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS | | VALVE OPERATION METHOD | MANUAL | | VALVE SIZE | 1.500 INCHES |
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