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National Stock Number:
4820-00-810-0569
Federal Supply Class:
4820
National Item Identification Number:
008100569
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:
| 33311-30 | 57524 | STERLING ELECTRIC INC SUB OF A O SMITH CORP | | 33311-30/F03-20843-05TS | 57524 | STERLING ELECTRIC INC SUB OF A O SMITH CORP | | 33311-30/F03-2084B-05TS | 35743 | VELAN INC | | F03-2084B-05TS | 35743 | VELAN INC | | F03-2084B-05TS | 57524 | STERLING ELECTRIC INC SUB OF A O SMITH CORP |
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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 | | VALVE SIZE | 0.500 INCHES | | FACE TO FACE DISTANCE | 6.500 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 ALL ENDS | | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS | | NOMINAL OUTSIDE DIAMETER | 3.750 INCHES ALL ENDS | | NOMINAL THICKNESS | 0.562 INCHES ALL ENDS | | BOLT HOLE QUANTITY | 4 ALL ENDS | | BOLT HOLE NOMINAL DIAMETER | 0.562 INCHES ALL ENDS | | BOLT CIRCLE NOMINAL DIAMETER | 2.625 INCHES ALL ENDS | | FLANGE FACE DESIGN | RAISED STRAIGHT ALL ENDS | | RAISED FACE NOMINAL HEIGHT | 0.250 INCHES ALL ENDS | | RAISED FACE NOMINAL DIAMETER | 1.375 INCHES ALL ENDS | | MOUNTING POSITION | HORIZONTAL | | BONNET TYPE | OUTSIDE SCREW-YOKE | | BONNET ATTACHMENT METHOD | BOLTED | | FEATURES PROVIDED | BONNET PACKING |
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