Powder pneumatic valve Product Details Brand: Kang Min Model: DN150, DN200, DN250, DN300 Scope: concrete mixing stations and dry powder Synonyms: Butterfly valve connection: flange material: cast aluminum Nominal diameter: 100-300 (mm) Pressure Range: 0.2Mpa powder pneumatic valve switch is mainly used for the silo bins, hoppers and equipped with powdery or granular materials. Can be applied to deal with all powdery and granular materials, the use of the material itself gravity valve closure and pneumatic transport of dry materials. Can be installed below the hopper, bin, silo, spiral or other type of conveyor, and connecting the pneumatic conveying line. Temperature: up to 80 ℃