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National Stock Number:
4820-01-272-6665
Federal Supply Class:
4820
National Item Identification Number:
012726665
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:
| B1221A 1.50IN | 30263 | PIMA VALVE, LLC | | FIG NO B-1221-A SZ 1 1/2 IN | 11859 | HUNT VALVE COMPANY, INC. | | FIG NO B-1221-A SZ 1 1/2 IN | 30263 | PIMA VALVE, LLC |
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Techincal Specification:
| BOLT CIRCLE NOMINAL DIAMETER | 3.875 INCHES ALL ENDS | | BOLT HOLE NOMINAL DIAMETER | 0.625 INCHES ALL ENDS | | BOLT HOLE QUANTITY | 4 ALL ENDS | | BONNET ATTACHMENT METHOD | BOLTED | | BONNET TYPE | INSIDE SPRING | | CONNECTION TYPE | FLANGE ALL ENDS | | FURNISHED ITEMS AND QUANTITY | 1 HANDWHEEL | | FACE TO FACE DISTANCE | 6.000 INCHES | | FLANGE FACE DESIGN | PLAIN ALL ENDS | | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS | | FLOW CONTROL DEVICE | DISK | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 922 OR COPPER ALLOY 836 OVERALL | | MAXIMUM OPERATING TEMP | 366.0 FAHRENHEIT SECOND RESPONSE | | MAXIMUM OPERATING TEMP | 450.0 FAHRENHEIT FIRST RESPONSE | | MEDIA FOR WHICH DESIGNED | STEAM SINGLE RESPONSE | | MOUNTING POSITION | HORIZONTAL | | NOMINAL OUTSIDE DIAMETER | 5.000 INCHES ALL ENDS | | NOMINAL THICKNESS | 0.438 INCHES ALL ENDS | | OPERATING PRESSURE | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE | | OPERATING PRESSURE | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE | | SPECIAL FEATURES | STOP-CHECK TYPE | | VALVE OPERATION METHOD | AUTOMATIC | | VALVE SIZE | 1.500 INCHES | | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS |
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