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National Stock Number:
4820-00-477-7335
Federal Supply Class:
4820
National Item Identification Number:
004777335
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:
| 8297 2 1/2IN | 79342 | WILLIAM E WILLIAMS VALVE CORP | | 845-1889553ASSY | 80064 | NAVAL SHIP SYSTEMS COMMAND | | B090084C02TS/73324BRVB/882039332 | 57574 | VELAN VALVE UNITED STATES OPCO, INC. | | BM523806 | 63686 | THE WALWORTH COMPANY | | MIL-DTL-22052 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | MILV22052 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| BONNET ATTACHMENT METHOD | BOLTED | | BONNET TYPE | OUTSIDE SCREW-YOKE | | CONNECTION STYLE | BEVELED (PIPE) ALL ENDS | | CONNECTION TYPE | BUTT WELD PIPE ALL ENDS | | FEATURES PROVIDED | BONNET PACKING | | FLOW CONTROL DEVICE | DISK | | OPERATING PRESSURE | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A105, GRADE 2 ASSN STD SINGLE MATERIAL RESPONSE BODY | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R-17131,MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R-17131,MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE SEAT | | MATERIAL | COBALT COMP 6 FLOW CONTROL DEVICE | | MATERIAL | COBALT COMP 6 SEAT | | MATERIAL | STEEL UNS K03504 BODY | | MAXIMUM OPERATING TEMP | 500.0 FAHRENHEIT SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | STEAM SINGLE RESPONSE | | MOUNTING POSITION | HORIZONTAL | | NOMINAL PIPE SIZE ACCOMMODATED | 2.500 INCHES ALL ENDS | | NONDEFINITIVE SPEC/STD DATA | D COMPOSITION | | SPECIAL FEATURES | VALVE SIZE 2-1/2 IN. | | VALVE OPERATION METHOD | MANUAL | | STYLE DESIGNATOR | STRAIGHT THRU |
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