In Triple Offset design Butterfly Valve the third offset created by the geometry design of the seating surface. The seat is machined into an offset conical profile resulting in a right-angled cone.
This ensures frictionless stroking throughout its operating cycle. Contact is only made at the final point of closure with the 90° angle acting as a mechanical stop; Metal seated valve use triple offset design.
Triple Offset Butterfly Valves are widely used in many industries such as Oil & Gas, Chemical & coal, petrochemical, desalination plants, waterworks, fossils, district heating, nuclear, Iron & Steel, Mining, automotive, shipyards, aerospace.