Understand the Application:

Determine the purpose of the valve within your marine system. SDNR valves are commonly used to prevent backflow in pipelines, especially where a non-return valve is required to close automatically to stop the flow of fluids in one direction.

Consider Operating Conditions:

Evaluate the operating conditions of your marine system, including pressure, temperature, and the type of fluid being handled. Ensure that the valve you select is rated for these conditions to avoid malfunction or damage.

Material Selection:

Choose the appropriate material for the valve based on the compatibility with the fluid being transported and the surrounding environment. Common materials for marine SDNR valves include stainless steel, bronze, and brass.

Size and Connection Type:

Determine the required size and connection type of the valve based on the dimensions of your piping system. Consider factors such as flow rate and space constraints when selecting the size of the valve.

Drawing: