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National Stock Number:
4820-01-312-1819
Federal Supply Class:
4820
National Item Identification Number:
013121819
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:
| B-1421-2IN TRIM A | 11859 | HUNT VALVE COMPANY, INC. | | B-1421-2IN TRIM A | 30263 | PIMA VALVE, LLC | | B1421-00000C 2IN TRIM A | 11859 | HUNT VALVE COMPANY, INC. | | B1421-00000C 2IN TRIM A | 30263 | PIMA VALVE, LLC | | B1421-D0000C 2I | 30263 | PIMA VALVE, LLC |
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Techincal Specification:
| BONNET ATTACHMENT METHOD | BOLTED | | BONNET TYPE | OUTSIDE SCREW-YOKE | | CONNECTION TYPE | FLANGE ALL ENDS | | FURNISHED ITEMS AND QUANTITY | 1 HANDWHEEL | | FIRST CONNECTION FACE TO CENTERLINE DISTANCE | 3.625 INCHES | | FLANGE FACE DESIGN | PLAIN ALL ENDS | | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS | | FLOW CONTROL DEVICE | DISK | | MATERIAL | COPPER ALLOY BODY | | MATERIAL | COPPER ALLOY FLOW CONTROL DEVICE | | MATERIAL | COPPER ALLOY SEAT | | MATERIAL | COPPER ALLOY AND MANGANESE STEM | | NOMINAL OUTSIDE DIAMETER | 6.000 INCHES ALL ENDS | | NOMINAL THICKNESS | 0.500 INCHES ALL ENDS | | OPERATING PRESSURE | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | VALVE OPERATION METHOD | MANUAL | | VALVE SIZE | 2.000 INCHES | | STYLE DESIGNATOR | ANGLE FLANGED ENDS |
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