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National Stock Number:
4820-00-268-8778
Federal Supply Class:
4820
National Item Identification Number:
002688778
Description:
VALVE,CHECK
Detail:
A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
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Manufacturer Information:
| 3412 3/4IN | 63686 | THE WALWORTH COMPANY | | 3412-3/4IN | 63686 | THE WALWORTH COMPANY | | MSS SP-80 | 59646 | MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS INDUSTRY INC | | TYPE 4, CLASS B, 3/4 IN | 59646 | MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS INDUSTRY INC | | WWV51 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| CONNECTION STYLE | PLAIN, OPTIONAL END (PIPE) ALL ENDS | | CONNECTION TYPE | THREADED INTERNAL PIPE ALL ENDS | | FLOW CONTROL DEVICE | DISK | | OPERATING PRESSURE | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE | | OPERATING PRESSURE | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE | | MATERIAL | COPPER ALLOY BODY | | MATERIAL | COPPER ALLOY SEAT | | MAXIMUM OPERATING TEMP | 150.0 FAHRENHEIT SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | STEAM FIRST RESPONSE | | MEDIA FOR WHICH DESIGNED | WATER-OIL-GAS SECOND RESPONSE | | MOUNTING POSITION | HORIZONTAL OR VERTICAL | | NOMINAL PIPE SIZE ACCOMMODATED | 0.750 INCHES FIRST END | | NOMINAL THREAD SIZE | 0.750 INCHES ALL ENDS | | NONDEFINITIVE SPEC/STD DATA | 4 TYPE AND B CLASS AND 3/4 SIZE | | VALVE OPERATION METHOD | AUTOMATIC | | STYLE DESIGNATOR | STRAIGHT THRU | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | THREAD SERIES DESIGNATOR | NPT ALL ENDS |
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