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National Stock Number:
4820-00-287-5679
Federal Supply Class:
4820
National Item Identification Number:
002875679
Description:
VALVE,STOP-LIFT-CHECK
Detail:
A VALVE WITH A STEM THAT MAY BE MECHANICALLY ACTUATED TO THREE 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. IN THE THIRD POSITION, THE VALVE DISK IS LIFTED FROM THE SEAT TO ALLOW A FLOW OF FLUID IN EITHER DIRECTION THROUGH THE VALVE. THE VALVE DISK MAY BE SPRING LOADED. SEE ALSO VALVE, LIFT-CHECK AND VALVE, STOP-CHECK.
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Manufacturer Information:
| DD445S4810-62 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| BOLT CIRCLE NOMINAL DIAMETER | 5.000 INCHES FIRST END | | BOLT HOLE NOMINAL DIAMETER | 0.688 INCHES FIRST END | | BOLT HOLE QUANTITY | 8 FIRST END | | BONNET ATTACHMENT METHOD | BOLTED | | BONNET TYPE | OUTSIDE SCREW-YOKE | | CONNECTION TYPE | FLANGE SECOND END | | CONNECTION TYPE | FLANGE FIRST END | | FACE TO FACE DISTANCE | 11.500 INCHES | | FEATURES PROVIDED | BONNET PACKING | | FLANGE FACE DESIGN | RAISED STRAIGHT FIRST END | | FLANGE SHAPE | ROUND FIRST END | | FLOW CONTROL DEVICE | DISK | | MATERIAL | COBALT ALLOY FLOW CONTROL DEVICE | | MATERIAL | COBALT ALLOY SEAT | | MATERIAL | STEEL BODY | | MATERIAL | STEEL CORROSION RESISTING STEM | | MAXIMUM OPERATING TEMP | 850.0 FAHRENHEIT SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | STEAM SINGLE RESPONSE | | MOUNTING POSITION | HORIZONTAL | | NOMINAL OUTSIDE DIAMETER | 6.500 INCHES FIRST END | | NOMINAL THICKNESS | 1.000 INCHES FIRST END | | OPERATING PRESSURE | 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | RAISED FACE NOMINAL DIAMETER | 3.625 INCHES FIRST END | | RAISED FACE NOMINAL HEIGHT | 0.250 INCHES FIRST END | | VALVE OPERATION METHOD | MANUAL | | STYLE DESIGNATOR | ANGLE FLANGED ENDS |
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