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National Stock Number:
4820-01-258-9355
Federal Supply Class:
4820
National Item Identification Number:
012589355
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:
| B1221E-3IN | 11859 | HUNT VALVE COMPANY, INC. | | B1221E-3IN | 30263 | PIMA VALVE, LLC |
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Techincal Specification:
| MATERIAL | COPPER ALLOY 922 OR | | COPPER ALLOY 836 BODY | | NICKEL ALLOY SEAT | | NICKEL ALLOY 400 STEM | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A494,GR M30H ASSN STD SINGLE MATERIAL RESPONSE SEAT | | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS | | VALVE SIZE | 3.000 INCHES | | FACE TO FACE DISTANCE | 9.000 INCHES | | MAXIMUM OPERATING PRESSURE | 150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | VALVE OPERATION METHOD | MANUAL | | CONNECTION TYPE | FLANGE ALL ENDS | | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS | | NOMINAL OUTSIDE DIAMETER | 7.500 INCHES ALL ENDS | | NOMINAL THICKNESS | 0.625 INCHES ALL ENDS | | BOLT HOLE QUANTITY | 4 ALL ENDS | | BOLT HOLE NOMINAL DIAMETER | 0.750 INCHES ALL ENDS | | BOLT CIRCLE NOMINAL DIAMETER | 6.000 INCHES ALL ENDS | | FLANGE FACE DESIGN | PLAIN ALL ENDS | | MOUNTING POSITION | HORIZONTAL | | BONNET TYPE | INSIDE SCREW | | BONNET ATTACHMENT METHOD | BOLTED | | MOUNTING FACILITY | BRACKET | | FURNISHED ITEMS AND QUANTITY | 1 HANDWHEEL | | SPECIAL FEATURES | MONEL TRIM |
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