7643-01-449-5171 TOPO,MC&G PRODUCTS Index 7643-01-449-5173 TOPOGRAPHIC GEOSPATIAL PRODUCTS

National Stock Number:
4820-01-449-5172

Federal Supply Class:
4820

National Item Identification Number:
014495172

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.


Manufacturer Information:
2-1700SILB79128ROBERT H WAGER CO INC
2-1700SILB REV79128ROBERT H WAGER CO INC


Techincal Specification:
CONNECTION TYPEUNTHREADED INTERNAL PIPE 1ST END
CONNECTION STYLEREDUCED SOCKET WITH ONE BRAZING RING (PIPE) 1ST END
DISK LOADING METHODWEIGHT
FLOW CONTROL DEVICEBALL
MATERIALCOPPER ALLOY FLOW CONTROL DEVICE
MATERIALCOPPER ALLOY BODY
MATERIALSTEEL CORROSION RESISTING SEAT
MOUNTING POSITIONVERTICAL
NOMINAL PIPE SIZE ACCOMMODATED2.000 INCHES 1ST END
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS
VALVE OPERATION METHODAUTOMATIC


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