Triple eccentric butterfly valve is a popular type of quarter-turn valve that is used in a wide range of industrial applications and offers a number of advantages over ball, gate, globe, and plug valves. These include superior performance, cost savings, weight reduction, and ease of operation and maintenance. They are also safer than traditional valves due to the reduced risk of slam and actuator overload. Find out:shiphamvalves.com
The geometry of this valve consists of a shaft offset on both the X and Y axis of the body center-line, this creates a cam action that ensures that the sealing components (disc and seat) never touch each other until the final stroke of the cycle. This eliminates all rubbing and abrasion between the seat and seal, thereby extending their life.
Triple Eccentric Butterfly Valves in the Chemical Industry: Corrosion Resistance and More
These valves are available with multiple types of seats including Buna, EPDM, Viton, Teflon, and Natural Rubber. This allows the user to choose the right option for their application and operating conditions. The ‘cam-action’ design and the ‘right angled’ conical seat geometry allow for smooth, friction-free stroking of the disc seat across the full operating range. This significantly reduces seat and seat ring wear.
The double-offset butterfly valve features two counterbalance contrasts that make it possible to offer a metal-to-metal seal and is designed for a high tolerance to temperature and pressure. It is ideal for applications that require tight shut-off and zero leakage. In addition, this type of butterfly valve is characterized by its light and easy opening.