Asahi/America is the newest addition to their full range of thermoplastic valves and valve accessories. The new valve incorporates four major design upgrades. New features include a Flange Stopper, which prevents the valve liner from over compression and a molded body Absorption Channel. These work together to eliminate seat compression from effective stem torque, resulting in higher cycle life. A new revolutionarySpherical Disc provides increased flow characteristics and is less intrusive to piping systems. The Type 57 is produced with Plasgear, the first all-plastic gear operator, standard on 8-14″ models. The gear incorporates the latest industry standards including NAMUR top works for accessories and the worldwide recognizedISO 5211 standards (F07, F10 and F14) for interchangeability to industrial valves. The Type 57 Butterfly Valve is manufactured in sizes from 1-1/2 to 14″ and is available in PVC, polypropylene or PVDF. Manualvalves are manufactured with lever or gear operators or can be fitted with electric or pneumatic actuators.
