Butterfly Check Valve

The butterfly check valve is an automatic valve, mainly used to prevent the backflow of the medium and ensure one-way flow. It has a simple structure, small size and light weight, and is widely used in water treatment, petrochemical, power and other industries.

• Simple structure: It consists of a valve body, a valve disc, a valve shaft and a sealing ring, which is easy to manufacture and maintain.
• Small size and light weight: Compared with other check valves, the butterfly check valve is more compact and easy to install.
• Rapid opening and closing: The valve disc design enables it to quickly respond to changes in the flow of the medium and reduce the water hammer effect.
• Low flow resistance: The flow resistance is small when fully open, reducing energy loss.
• A variety of materials: Different materials can be selected according to the characteristics of the medium, such as cast iron, stainless steel, etc.

When the medium flows forward, the valve disc is pushed open to allow passage; when the medium flows in the reverse direction, the valve disc automatically closes under the action of gravity or spring to prevent backflow.

• Water treatment: Used in water supply and drainage systems to prevent water backflow.
• Petrochemical: used in pipelines to prevent medium backflow.
• Electricity: used in cooling water systems to ensure one-way flow.
• Other industries: suitable for occasions where medium backflow needs to be prevented.
• Selection considerations
• Medium characteristics: select appropriate materials and sealing materials according to the properties of the medium.
• Pressure level: ensure that the valve can withstand the system working pressure.
• Installation direction: pay attention to the installation direction to ensure that the valve disc can open and close normally.
• Maintenance: regularly check the sealing ring and valve disc to ensure normal operation.

The butterfly check valve is widely used in many industries with its simple structure, small size and fast opening and closing, and is an ideal choice for preventing medium backflow.

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