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National Stock Number:
4820-01-469-0309
Federal Supply Class:
4820
National Item Identification Number:
014690309
Description:
VALVE,VENT-CHECK
Detail:
A DUAL PURPOSE MARINE VALVE USED PRIMARILY WITH SHIPBOARD CARGO TANKS AND BULKHEADS. IT ACTS BOTH AS A VENT VALVE, TO RELIEVE VACUUM AND PRESSURE, AND A CHECK VALVE, TO PREVENT CARGO CONTAMINATION. IT IS EQUIPPED WITH AN INTERNAL FLAME SCREEN AND/OR A PROTECTIVE MESH AND MAY INCLUDE A HINGED COVER.
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Manufacturer Information:
| 1750-T IRON GALVANIZED 3.0IN | 79128 | ROBERT H WAGER CO INC | | 1750-TIG 3.0IN | 79128 | ROBERT H WAGER CO INC |
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Techincal Specification:
| CONNECTION STYLE | PLAIN, OPTIONAL END (PIPE) FIRST END | | CONNECTION TYPE | THREADED INTERNAL PIPE FIRST END | | FURNISHED ITEMS AND QUANTITY | 1 FLOAT AND 1 COVER AND 1 STRAINER | | FLOW CONTROL DEVICE | BALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | INVERTED VENT CHECK VALVE | | MATERIAL | IRON CAST BODY | | MATERIAL | COPPER FLOW CONTROL DEVICE | | MEDIA FOR WHICH DESIGNED | VACUUM FIRST RESPONSE | | MEDIA FOR WHICH DESIGNED | WATER, SALT SECOND RESPONSE | | MOUNTING FACILITY | THREADED FASTENER | | MOUNTING POSITION | VERTICAL | | NOMINAL THREAD SIZE | 3.000 INCHES FIRST END | | SPECIAL FEATURES | INCLUDES FLAME SCREEN; NHA SWBS-500 | | VALVE OPERATION METHOD | AUTOMATIC | | STYLE DESIGNATOR | STRAIGHT THRU | | SURFACE TREATMENT | ZINC | | THREAD DIRECTION | RIGHT-HAND FIRST END | | THREAD QUANTITY PER INCH | 8 FIRST END | | THREAD SERIES DESIGNATOR | NPT FIRST END |
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