D641Wventilation valve

 Description: Ventilation butterfly valve used with the same material into sealed valve body temperature with the selection of its application, depending nominal diameter DN (mm): 50-1200, nominal pressure ≤ 0.6MPa, generally used in industry, metallurgy and environmental protection, regulating media flow channels for ventilation purposes. Its characteristics: innovative design, reasonable, unique body, light weight, open and close quickly. Operation torque is small, the material used to adapt to meet the low, medium, high temperature and corrosive media with different media