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National Stock Number:
4820-01-352-8937
Federal Supply Class:
4820
National Item Identification Number:
013528937
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:
| 5071-2IN.178131 REV. F | 76364 | MILWAUKEE VALVE CO, INC | | 5071-2IN.178131 REV. F | 91643 | SERVICE BRASS AND ALUMINUM FOUNDRY CO, INC. |
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Techincal Specification:
| BOLT HOLE NOMINAL DIAMETER | 0.562 INCHES ALL ENDS | | BOLT HOLE QUANTITY | 6 ALL ENDS | | BONNET TYPE | PACKING RETAINING | | BOLT CIRCLE NOMINAL DIAMETER | 4.438 INCHES ALL ENDS | | CONNECTION TYPE | FLANGE ALL ENDS | | FURNISHED ITEMS AND QUANTITY | 1 HANDWHEEL | | FACE TO FACE DISTANCE | 8.000 INCHES | | FLANGE FACE DESIGN | PLAIN ALL ENDS | | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS | | FLOW CONTROL DEVICE | DISK | | OFFSET DISTANCE | 0.375 INCHES | | MATERIAL | COPPER ALLOY 922 BODY | | MATERIAL | COPPER ALLOY 922 SEAT | | MATERIAL | NICKEL ALLOY 400 STEM | | MOUNTING POSITION | HORIZONTAL | | NOMINAL OUTSIDE DIAMETER | 5.562 INCHES ALL ENDS | | NOMINAL THICKNESS | 0.438 INCHES ALL ENDS | | VALVE OPERATION METHOD | AUTOMATIC OR MANUAL | | VALVE SIZE | 2.000 INCHES | | STYLE DESIGNATOR | OFFSET FLANGED ENDS | | SUPPLEMENTARY FEATURES | THIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL. THE CURRENT APPROVED SOURCES 91643 HAVE INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984. THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTOS MATERIAL AFTER 1984 |
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