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National Stock Number: 4820-01-453-2088
Federal Supply Class: 4820
National Item Identification Number: 014532088
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:
1750SILB-4.0IN | 79128 | ROBERT H WAGER CO INC | 4-1750SILB | 79128 | ROBERT H WAGER CO INC |
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Techincal Specification:
CONNECTION TYPE | UNTHREADED INTERNAL PIPE 1ST END | CONNECTION STYLE | SOCKET WITH BRAZING RING (PIPE) 1ST END | FURNISHED ITEMS AND QUANTITY | 1 COVER AND 1 FLOAT | PART NAME ASSIGNED BY CONTROLLING AGENCY | INVERTED VENT CHECK VALVE | MATERIAL | COPPER ALLOY FLOW CONTROL DEVICE | MATERIAL | COPPER ALLOY BODY | MOUNTING POSITION | VERTICAL | NOMINAL PIPE SIZE ACCOMMODATED | 4.000 INCHES 1ST END | SPECIAL FEATURES | NO BLOW THROUGH | STYLE DESIGNATOR | STRAIGHT THRU | VALVE OPERATION METHOD | AUTOMATIC |
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