Butterfly Valves Seat liner extending on to the contact faces ensures perfect sealing and eliminates the use of flanges gaskets.Unique triple sealing system for sheft sealing and prevents extemal substances from entering the stem bore.A fully universal body design ensure fitments of the Valves between companion flanges of all standards (viz : ANSI, BS, DIN, JIS, IS etc.)Take less space than ball Valves.