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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:
| MATERIAL | STEEL BODY | | COBALT ALLOY FLOW CONTROL DEVICE | | COBALT ALLOY SEAT | | STEEL CORROSION RESISTING STEM | | STYLE DESIGNATOR | ANGLE FLANGED ENDS | | FACE TO FACE DISTANCE | 11.500 INCHES | | FLOW CONTROL DEVICE | DISK | | MEDIA FOR WHICH DESIGNED | STEAM SINGLE RESPONSE | | MAXIMUM OPERATING PRESSURE | 600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MAXIMUM OPERATING TEMP | 850.0 DEG FAHRENHEIT SINGLE RESPONSE | | VALVE OPERATION METHOD | MANUAL | | CONNECTION TYPE | FLANGE 1ST END | | FLANGE 2ND END | | FLANGE SHAPE | ROUND 1ST END | | NOMINAL OUTSIDE DIAMETER | 6.500 INCHES 1ST END | | NOMINAL THICKNESS | 1.000 INCHES 1ST END | | BOLT HOLE QUANTITY | 8 1ST END | | BOLT HOLE NOMINAL DIAMETER | 0.688 INCHES 1ST END | | BOLT CIRCLE NOMINAL DIAMETER | 5.000 INCHES 1ST END | | FLANGE FACE DESIGN | RAISED STRAIGHT 1ST END | | RAISED FACE NOMINAL HEIGHT | 0.250 INCHES 1ST END | | RAISED FACE NOMINAL DIAMETER | 3.625 INCHES 1ST END | | MOUNTING POSITION | HORIZONTAL | | BONNET TYPE | OUTSIDE SCREW-YOKE | | BONNET ATTACHMENT METHOD | BOLTED | | FEATURES PROVIDED | BONNET PACKING |
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