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National Stock Number:
4820-00-287-5942
Federal Supply Class:
4820
National Item Identification Number:
002875942
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:
| 17657-5-S-1438 | 14959 | CRANE CO DIV VALVE DIV |
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Techincal Specification:
| MATERIAL | STEEL BODY | | COBALT ALLOY FLOW CONTROL DEVICE | | COBALT ALLOY SEAT | | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS | | VALVE SIZE | 1.000 INCHES | | FACE TO FACE DISTANCE | 8.500 INCHES | | FLOW CONTROL DEVICE | DISK | | MEDIA FOR WHICH DESIGNED | STEAM SINGLE RESPONSE | | MAXIMUM OPERATING PRESSURE | 600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | VALVE OPERATION METHOD | MANUAL | | CONNECTION TYPE | FLANGE 1ST END | | FLANGE SHAPE | ROUND WITH HOLES 1ST END | | NOMINAL OUTSIDE DIAMETER | 4.875 INCHES 1ST END | | NOMINAL THICKNESS | 0.688 INCHES 1ST END | | BOLT HOLE QUANTITY | 4 1ST END | | BOLT HOLE NOMINAL DIAMETER | 0.688 INCHES 1ST END | | BOLT CIRCLE NOMINAL DIAMETER | 3.500 INCHES 1ST END | | FLANGE FACE DESIGN | RAISED STRAIGHT 1ST END | | RAISED FACE NOMINAL HEIGHT | 0.250 INCHES 1ST END | | RAISED FACE NOMINAL DIAMETER | 2.750 INCHES 1ST END | | MOUNTING POSITION | HORIZONTAL OR | | VERTICAL | | BONNET TYPE | OUTSIDE SCREW-YOKE | | BONNET ATTACHMENT METHOD | BOLTED | | FEATURES PROVIDED | BONNET PACKING |
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