Marine Center Type Butterfly Valve

Marine check Valves, also named as Non-Return Valves (NRV) or One-Way Valves, is a device that only allows the flow of fluids in one direction. Check valve open with forward flow and close against reverse flow. The medium flows 

in from the inlet end (the lower side) and flows out from the outlet end (the upper side). Valve is opened when inlet pressure is greater than the sum of disc weight and flow resistance. Conversely, the valve is closed when the 

medium flows back.

A marine check valve is a type of valve used in marine applications to allow fluid or gas to flow in one direction only. It is designed to prevent backflow and ensure that fluids or gases move in the desired direction. Marine check valves are commonly used in applications such as ballast systems, bilge systems, and engine cooling systems, among others.

Marine check valves can be made from a variety of materials, including brass, stainless steel, and plastic, depending on the application and the fluid or gas being conveyed. It's important to choose a check valve that is suitable for the specific conditions of the marine environment, such as saltwater exposure and high temperatures.

Feature: 

Marine check valves are important components used in the marine industry to prevent backflow of water or other fluids. These valves feature several important characteristics that make them well-suited for use in marine environments, including:

1. Corrosion resistance: Marine check valves are typically made of materials that are resistant to corrosion, such as stainless steel or bronze, to ensure longevity and prevent degradation due to exposure to saltwater.

2. Durable construction: These valves are built to withstand the harsh conditions of marine environments, including high pressures, extreme temperatures, and exposure to saltwater.

3. Spring-loaded mechanism: Marine check valves are designed with a spring-loaded mechanism that ensures the valve remains closed until there is sufficient pressure to open it, preventing backflow.

4. Compact size: These valves are typically smaller and more compact than other types of valves, making them ideal for use in tight spaces and confined areas.

5. Easy maintenance: Marine check valves are typically easy to maintain and repair, with simple mechanisms and components that can be easily replaced if necessary.

Overall, marine check valves are an essential component in marine plumbing systems, providing reliable and efficient backflow prevention to ensure safe and reliable operation.

Specification :

• Design: JIS, DIN, API, GB

• End Connection: BW, RF, RTJ, UNION

• Size: 1-1/2”~48”, DN40~DN1200, 40A~1200A

• Pressure: JIS 1K~63K, 125LB~2500LB, PN10~PN420

• Material: Cast Iron, Stainless Steel, Bronze

Pls contact us for more details if you are interested.