Powder butterfly parameters:? Can be equipped with pneumatic actuators Temperature: -15 ~ + 135 ℃ Connection: Body material Flange (DIN / ANSI / JIS): aluminum disc material: carbon steel covered with wear-resistant polymer Composite Sealing Material: EPDM Medium: various powders, granular materials Scope: concrete mixing stations and dry powder powder is introduced by the Shanghai Butterfly Valve Co. Freycinet foreign advanced technology development, has a simple structure, the disc resistant, long seal life, simple installation and other characteristics, so it can accommodate a variety of applications of powder / granular materials. 1, the output torque, the normal life of millions of times, maintenance-free. 2, the body is made of lightweight die-cast aluminum alloy high, light weight 3, the valve plate is lined with wear-resistant steel core polymer material, and the formation of high wear-resistant rubber seals wear soft seal wear again Strong also be applied 4, can be installed in hoppers, silos, screw conveyor outlet and pneumatic conveying pipeline 5, flange can select a single flange (D) according to need or double flange surface (S)