Double Eccentric butterfly valve is high performance butterfly valve , which are made to completely close or open a passage of the functioning medium flowing via  a pipeline. They can also be applied for flow-control objectives. Anyway, a hundred percent tightness of the valve cannot be promised in a long-term use for control objectives. The  high performance butterfly valve can be mounted into vertical, horizontal or inclined pipeline so that the shot stamped on the valve body matches with the way of the power (arrow points from top pressure to lesser when the disc is closed), and the rotating disc axe is in a horizontal place. The type of bolt at the pivot area is also very vital. When there is a butterfly valve with electric actuator it is vital to abide the actuators producer.

Triple offset butterfly valves are executed with a metal to meal seat designed to make sure best tightness in chemical, gas, steam, cryogenic and petrochemical applications. These valves are accessible in lug type, wafer type, and twin flanged type. Triple-off set butterfly valves provide the top sealing and high life of all butterfly valve designs. Here are some of the factors they are chosen: For the extreme situations of critical procedure applications, steam separation and temperature high, TOVs offer performance standard and reliability. The bi-directional zero outflow closure with a metal seat, even after high cycling, offers sealing honesty previously linked just with soft-sealed control devices. Small torque from quarter-turn action allows little actuator and affordable cost.