The features of soft seal butterfly valves
Soft seal butterfly valves are a type of industrial valve commonly used to regulate and control the flow of liquids or gases in pipelines. The main features of soft seal butterfly valves are:
Soft seal: Soft seal butterfly valves use a flexible elastomer seal to create a tight shut-off and prevent leakage. This seal is usually made of materials such as EPDM, NBR, or silicone, and is designed to be replaceable.
Butterfly disc: The butterfly disc is the main component of the valve, which rotates on a shaft to open or close the valve. It is made of materials such as stainless steel, ductile iron, or aluminum bronze, and can be coated with materials such as rubber or PTFE for increased durability and corrosion resistance.
Wafer or lug design: Soft seal butterfly valves are available in wafer or lug designs. Wafer design valves are thinner and lighter than lug design valves, making them easier to install and remove. Lug design valves are more robust and are commonly used in applications that require higher pressure ratings.
Actuation: Soft seal butterfly valves can be operated manually or automatically. Manual valves are opened or closed by turning a handwheel, while automatic valves are operated by an actuator, such as an electric or pneumatic actuator.
Size range: Soft seal butterfly valves are available in a range of sizes, from as small as 2 inches to as large as 60 inches or more. The valve size is determined by the diameter of the butterfly disc.
Applications: Soft seal butterfly valves are commonly used in applications such as water treatment, HVAC, chemical processing, food and beverage, and pharmaceuticals, where a tight shut-off and control of flow is required.
