Usage:
Bi-directional rubber seated butterfly valve (flange type,extension type,wafer type)were developed by our factory in 1991.With the constant improvement and replacement, the products have been awarded national patents(ZL 91216899.4 and ZL 9824210.4). It is widely used to throttle or adjust medium flow volume in industrial pipeline in the fields of water supply and drainage, petroleum, power and city construction.

Bi-directional Rubber Seat Butterfly Valve  standard and specification
Bi-directional Rubber Seat Butterfly Valve Design&Manufacture: GB12238MSS SP-67MSS SP-68API 609BS 5155
Bi-directional Rubber Seat Butterfly Valve Face to face dimension: GB9113JB79ANSI B16.5MSS SP-44API 605
Pressure test: GB/T13927ZBJ16-006 API 598

Technological and performance parameters