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National Stock Number:
4820-01-301-9078
Federal Supply Class:
4820
National Item Identification Number:
013019078
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:
| 3420 1IN | 63686 | THE WALWORTH COMPANY |
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Techincal Specification:
| CONNECTION STYLE | PLAIN, OPTIONAL END (PIPE) ALL ENDS | | CONNECTION TYPE | THREADED INTERNAL PIPE ALL ENDS | | DISK LOADING METHOD | SPRING | | FLOW CONTROL DEVICE | DISK | | OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE | | OPERATING PRESSURE | 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE | | MATERIAL | COPPER ALLOY BODY | | MAXIMUM OPERATING TEMP | 550.0 FAHRENHEIT SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | STEAM FIRST RESPONSE | | MEDIA FOR WHICH DESIGNED | WATER-OIL-GAS SECOND RESPONSE | | MOUNTING POSITION | HORIZONTAL | | NOMINAL THREAD SIZE | 1.000 INCHES ALL ENDS | | SPECIAL FEATURES | SWING CHECK TYPE | | VALVE OPERATION METHOD | AUTOMATIC | | STYLE DESIGNATOR | ANGLE | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | THREAD SERIES DESIGNATOR | NPT ALL ENDS |
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