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National Stock Number:
4820-00-187-6698
Federal Supply Class:
4820
National Item Identification Number:
001876698
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:
| 4578FNPP | 04537 | ATWOOD & MORRILL CO. INC. DBA WEIR VALVES AND CONTROLS USA |
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Techincal Specification:
| BONNET ATTACHMENT METHOD | BOLTED | | BONNET TYPE | INSIDE SCREW | | CONNECTION TYPE | FLANGE 1ST END | | CRITICALITY CODE JUSTIFICATION | ZZZY | | FACE TO FACE DISTANCE | 12.000 INCHES | | FEATURES PROVIDED | BONNET PACKING | | FLANGE FACE DESIGN | RAISED STRAIGHT 1ST END | | FLANGE SHAPE | ROUND 1ST END | | FLOW CONTROL DEVICE | POPPET | | MATERIAL | NICKEL ALLOY 400 BODY | | MATERIAL | NICKEL ALLOY 400 STEM | | MAXIMUM OPERATING PRESSURE | 600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | WATER-OIL-GAS SINGLE RESPONSE | | MOUNTING POSITION | HORIZONTAL | | NOMINAL OUTSIDE DIAMETER | 6.125 INCHES 1ST END | | NOMINAL THICKNESS | 0.875 INCHES 1ST END | | OFFSET DISTANCE | 2.250 INCHES | | RAISED FACE NOMINAL DIAMETER | 2.875 INCHES 1ST END | | RAISED FACE NOMINAL HEIGHT | 0.250 INCHES 1ST END | | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS | | RENEWABLE SEAT RING TYPE | THREADED | | STYLE DESIGNATOR | STRAIGHT THRU W/OFFSET FLANGED ENDS | | VALVE OPERATION METHOD | MANUAL | | VALVE SIZE | 1.500 INCHES |
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