The triple offset valve is an industrial valve used for controlling the flow of liquids and gases. It possesses an oblique sealing disc and three concentric rings, which make it easier to create a tight seal. Unlike a conventional butterfly valve, which operates like a gate valve with a quarter-turn actuation and requires a metal seat design, the triple offset type keeps a hard seal without a metal seat, thus reducing operating torque and making it simpler to automate. Learn more:https://www.shiphamvalves.com/solution-category/triple-offset-butterfly-valves/
With a long lifespan, Triple offset valves are ideal for demanding and critical applications. Their zero-leakage performance, durable construction, and metal-to-metal seating design make them more reliable than traditional valves and can withstand severe service conditions, including high temperatures and pressures.
The Evolution of Valve Technology: Exploring Triple Offset Valve Innovations
Triple-offset geometry is the key to minimizing friction between the seat and disc during operation. This is because of the three separate offsets that are designed into the valve. The first offset is between the axle center of the valve stem and the valve body centerline or seat surface. This helps to eliminate squeezing complications that can lead to premature failure of the valve’s seat and disc contact surfaces. The second offset, which is the axis of the seat cone angle that deviates from the axle centerline, prevents the valve’s contact with the seat during the majority of its operating cycle, allowing for metal-to-metal sealing to be achieved at the final degree of closure.
Finally, the third offset is the geometric design of the sealing components – there are no cavities between them that can be used by debris to clog the valve’s internal mechanisms. This leads to lower maintenance costs and extended valve life.
…