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National Stock Number:
4820-01-323-6167
Federal Supply Class:
4820
National Item Identification Number:
013236167
Description:
VALVE,STOP-LIFT-CHECK
Detail:
A VALVE WITH A STEM THAT MAY BE MECHANICALLY ACTUATED TO THREE 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. IN THE THIRD POSITION, THE VALVE DISK IS LIFTED FROM THE SEAT TO ALLOW A FLOW OF FLUID IN EITHER DIRECTION THROUGH THE VALVE. THE VALVE DISK MAY BE SPRING LOADED. SEE ALSO VALVE, LIFT-CHECK AND VALVE, STOP-CHECK.
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Manufacturer Information:
| B-12217-E/2 1/2IN | 11859 | HUNT VALVE COMPANY, INC. | | B-12217-E/2 1/2IN | 30263 | PIMA VALVE, LLC |
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Techincal Specification:
| BOLT CIRCLE NOMINAL DIAMETER | 5.500 INCHES ALL ENDS | | BOLT HOLE NOMINAL DIAMETER | 0.750 INCHES ALL ENDS | | BOLT HOLE QUANTITY | 4 ALL ENDS | | BONNET TYPE | OUTSIDE SCREW-YOKE | | BONNET ATTACHMENT METHOD | THREADED | | CONNECTION TYPE | FLANGE ALL ENDS | | DISK LOADING METHOD | SPRING | | FACE TO FACE DISTANCE | 8.000 INCHES | | FLANGE FACE DESIGN | PLAIN ALL ENDS | | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS | | FLOW CONTROL DEVICE | DISK | | MAXIMUM OPERATING TEMP | 450.0 FAHRENHEIT SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | STEAM FIRST RESPONSE | | MEDIA FOR WHICH DESIGNED | WATER, SALT SECOND RESPONSE | | MOUNTING POSITION | HORIZONTAL | | NOMINAL OUTSIDE DIAMETER | 7.000 INCHES ALL ENDS | | NOMINAL THICKNESS | 0.563 INCHES ALL ENDS | | OPERATING PRESSURE | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | VALVE OPERATION METHOD | AUTOMATIC | | VALVE SIZE | 2.500 INCHES |
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