IMPA: 751281

Marine Bronze Screw Down Check Globe Valve – Union Bonnet Type (IMPA 751281)

This marine-grade bronze screw down check globe valve is engineered for shipboard piping systems that require reliable flow control and backflow prevention in one compact unit. Designed to handle working pressures up to 16 kgf/cm², the valve is perfect for seawater, freshwater, fuel oil, and ballast lines aboard commercial vessels, workboats, and offshore installations.

The union bonnet construction allows quick and easy disassembly for inspection and maintenance without disturbing the pipe connection, saving valuable downtime during port calls. Its screw-down check mechanism ensures positive shut-off and prevents reverse flow, while the bronze body offers excellent corrosion resistance in harsh marine environments.

Key Features

Technical Specifications

Product TypeScrew Down Check Globe Valve
Model / SeriesF-7413
IMPA Code751281
Body MaterialMarine Bronze
Pressure Rating16 kgf/cm² (approx. 1.6 MPa / 230 psi)
Connection TypeScrewed / Threaded Ends
Bonnet TypeUnion Bonnet
OperationHandwheel / Screw Down
ApplicationSeawater, freshwater, fuel oil, ballast, and general shipboard piping systems
StandardsSuitable for marine service; meets common international dimensional and material standards
Available SizesTypically DN15 – DN50 (1/2" – 2") depending on stock

Frequently Asked Questions

What is the maximum working pressure of this valve?

This bronze screw down check globe valve is rated for 16 kgf/cm², which equals approximately 1.6 MPa or 230 psi.

Which fluids can be used with this valve?

The valve is suitable for seawater, fresh water, fuel oil, and other marine compatible fluids. Always verify material compatibility with your specific medium before installation.

What does 'union bonnet' mean?

Union bonnet construction uses a threaded union nut to hold the bonnet to the body. This allows the valve to be opened or serviced without unthreading the entire valve from the pipeline.

Is this valve a combination of a globe valve and check valve?

Yes, it functions as a screw-down globe valve for positive shut-off and also prevents reverse flow. The check action helps protect pumps and equipment from back pressure and backflow damage.

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