Triple offset butterfly valves are the most durable choice for critical service applications. They feature a hard-faced seat that reduces rubbing between the stem and seal ring to extend cycle life and provide zero leakage with metal-to-metal contact. Their design also allows them to open and close more frequently and at lower torque than other valve types, reducing maintenance costs and downtime.Find out:https://www.shiphamvalves.com/solution-category/triple-offset-butterfly-valves/
In contrast to concentric butterfly valves, which often experience squeezing complications between the disc and seat, triple-offset valves feature three offsets that create a cam-like motion to prevent seat and disc damage. The first and second offsets deviate the valve stem from the center of the valve body and seat to allow the butterfly plate to leave the seat quickly, decreasing the operating torque required to open and close them. The third offset consists of an inclined cone profile machined into the seat sealing surface, allowing rotary engagement and disengagement between the valve seat and butterfly plate. This eliminates all rubbing between the seat and seal ring during valve travel, reducing wear and extending cycle life.
Triple Offset Butterfly Valves: Revolutionizing Fluid Control Systems
Triple-offset valves are suitable for harsh environments, with corrosion-resistant materials such as Hastelloy and Stainless Steel commonly being used for the disc and seating surfaces. They can withstand high pressures and temperatures, with most featuring a rigid Polytetrafluoroethylene (PTFE) seat and being available in fire-safe designs. They are a great option for use in the metallurgy, electric power, petroleum, chemical industry, heating, air, gas, combustible gas, and other industries.…