Usage:
Bi-directional metal seated butterfly valve was developed by our factory in 1992. metal seated butterfly valve was awarded national patent two times(ZL93 2 03934.0, ZL98 2 420105.2). metal seated butterfly valve is widely used to throttle or adjust media flow volume in industrial pipeline in the fields of petroleum, power, chemical and metallurgy.

metal seated butterfly valve standard and specification:
Design&Manufacture: GB12238/MSS SP-67/MSS SP-68/API 609/BS 5155
Face to face dimension: GB9113/JB79/ANSI B16.5/MSS SP-44/API 605
Pressure test: GB/T13927/ZBJ16-006/API 598