Triple Offset Butterfly Valve

Triple offset butterfly valves (TOV) provide zero-leakage, metal-to-metal sealing for critical isolation and control applications.
They offer high performance with lower weight and cost compared to traditional globe or ball valves.

Triple offset butterfly valves, also known as triple eccentric valves, were originally designed for water shut-off applications but now have evolved into various other industries and have proved their performance in the harshest conditions. In recent times, they have also been playing an important role in controlling fugitive emissions. Valve manufacturers have started focusing on Triple Offset Valves, and they are now used in ways never seen before, while also being used more cost-effectively.

As the name says, the triple offset butterfly valve has three offsets. They are placed in a position as follows:

• 1st offset: The axis of the shaft is behind the centreline of the sealing point of the disc to the seat.
• 2nd offset: The axis of the shaft is eccentric to the center of the valve/pipeline.
• 3rd offset: It is the geometry of the seating surface, creating a type of cone shape of the disc and seat.