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National Stock Number:
4820-01-248-3707
Federal Supply Class:
4820
National Item Identification Number:
012483707
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:
| ASIB1221E1-14 | 11859 | HUNT VALVE COMPANY, INC. | | ASIB1221E1-14 | 30263 | PIMA VALVE, LLC |
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Techincal Specification:
| MATERIAL | COPPER ALLOY BODY | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT | | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM | | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS | | VALVE SIZE | 1.000 INCHES | | FACE TO FACE DISTANCE | 31.000 INCHES | | FLOW CONTROL DEVICE | DISK | | MEDIA FOR WHICH DESIGNED | WATER-OIL-GAS SINGLE RESPONSE | | MAXIMUM OPERATING PRESSURE | 150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | VALVE OPERATION METHOD | AUTOMATIC | | CONNECTION TYPE | FLANGE ALL ENDS | | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS | | NOMINAL OUTSIDE DIAMETER | 21.000 INCHES ALL ENDS | | NOMINAL THICKNESS | 1.188 INCHES ALL ENDS | | BOLT HOLE QUANTITY | 12 ALL ENDS | | BOLT HOLE NOMINAL DIAMETER | 1.125 INCHES ALL ENDS | | BOLT CIRCLE NOMINAL DIAMETER | 18.750 INCHES ALL ENDS | | FLANGE FACE DESIGN | PLAIN ALL ENDS | | MOUNTING POSITION | HORIZONTAL OR | | VERTICAL | | BONNET TYPE | OUTSIDE SCREW-YOKE | | BONNET ATTACHMENT METHOD | INTEGRAL |
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