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National Stock Number:
4820-01-494-7418
Federal Supply Class:
4820
National Item Identification Number:
014947418
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:
| 1 INCH 21F-C8M4 | 61661 | NEWMANS INC NEW JERSEY DIV | | 1 INCH 21F-C8M4-SC (55) | 2S222 | NIGHTWINE VALVES & ACTUATION LLC | | 1 INCH 21F-C8M4-SC (55) | 61661 | NEWMANS INC NEW JERSEY DIV |
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Techincal Specification:
| BOLT HOLE NOMINAL DIAMETER | 0.625 INCHES ALL ENDS | | BOLT CIRCLE NOMINAL DIAMETER | 3.125 INCHES ALL ENDS | | BOLT HOLE QUANTITY | 4 ALL ENDS | | BONNET TYPE | OUTSIDE SCREW-YOKE | | BONNET ATTACHMENT METHOD | BOLTED | | CONNECTION TYPE | FLANGE ALL ENDS | | FACE TO FACE DISTANCE | 5.000 INCHES | | FLANGE FACE DESIGN | RAISED STRAIGHT ALL ENDS | | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS | | MATERIAL | STEEL COMP 316 OVERALL | | MOUNTING POSITION | HORIZONTAL | | NOMINAL OUTSIDE DIAMETER | 4.250 INCHES ALL ENDS | | NOMINAL THICKNESS | 0.438 INCHES ALL ENDS | | PART NAME ASSIGNED BY CONTROLLING AGENCY | VALVE, GLOBE, STOP CHECK | | RAISED FACE NOMINAL DIAMETER | 2.000 INCHES ALL ENDS | | RAISED FACE NOMINAL HEIGHT | 0.062 INCHES ALL ENDS | | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS | | VALVE OPERATION METHOD | MANUAL | | VALVE SIZE | 1.000 INCHES |
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