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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:
| BOLT CIRCLE NOMINAL DIAMETER | 3.500 INCHES FIRST END | | BOLT HOLE NOMINAL DIAMETER | 0.688 INCHES FIRST END | | BOLT HOLE QUANTITY | 4 FIRST END | | BONNET ATTACHMENT METHOD | BOLTED | | BONNET TYPE | OUTSIDE SCREW-YOKE | | CONNECTION TYPE | FLANGE FIRST END | | FACE TO FACE DISTANCE | 8.500 INCHES | | FEATURES PROVIDED | BONNET PACKING | | FLANGE FACE DESIGN | RAISED STRAIGHT FIRST END | | FLANGE SHAPE | ROUND WITH HOLES FIRST END | | FLOW CONTROL DEVICE | DISK | | OPERATING PRESSURE | 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | MATERIAL | COBALT ALLOY SEAT | | MATERIAL | COBALT ALLOY FLOW CONTROL DEVICE | | MATERIAL | STEEL BODY | | MEDIA FOR WHICH DESIGNED | STEAM SINGLE RESPONSE | | MOUNTING POSITION | HORIZONTAL OR VERTICAL | | NOMINAL OUTSIDE DIAMETER | 4.875 INCHES FIRST END | | NOMINAL THICKNESS | 0.688 INCHES FIRST END | | RAISED FACE NOMINAL DIAMETER | 2.750 INCHES FIRST END | | RAISED FACE NOMINAL HEIGHT | 0.250 INCHES FIRST END | | VALVE OPERATION METHOD | MANUAL | | VALVE SIZE | 1.000 INCHES | | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS |
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