As the name suggests triple offset butterfly valve has three offsets. Of three offsets two are located in parallel place to the double offset butterfly valve, and the remaining third offset is the geometry of the seating surface, making a type of cone shape of the disc and seat. This cone allows the disc to seal against the seat without creating any resistance, along with the two eccentric shaft offsets.
In Triple offset design, the third offset forms a right-angled cone. Ensuring the frictionless opening and closing of the butterfly valve. The third seat forms a right angle acting as a mechanical stop, allowing best quality valve at a cost-effective rate compared to the Ball Valve Manufacturer in India and gate valves.
These valves are mostly used in applications which are alike to gate valves, in this metal seat are required and tight shutoff or quarter turn actuation is required. The unique design of triple offset valves prevents galling and scratches between the metal seat and the disc. Also the design aims to provide valves which are cost effective and lower torque option that are easier to use and automated.
Triple offset butterfly valves are generally used in applications that require bi-directional tight shut off, mostly used in industries like high pressure steam, high temperature applications, gases, and oil and chemical. Especially for this type of industries metal seat is required over a normal soft seat. The seal only ever comes into contact with the seat at the point of complete closure.
In Triple offset design the third offset forms a right angled cone. Ensuring the frictionless opening and closing of the butterfly valve. The third seat forms a right angle acting as a mechanical stop, allowing best quality valve at a cost effective rate compared to the ball valves and gate valves.