Wafer butterfly valve is widely used, but we need to pay attention to: the wafer butterfly valve in different working conditions, the material configuration is not the same. The use of the wrong material configuration may affect the performance of the wafer butterfly valve, or even cause security risks or threats.
In the process of waste water treatment, the use of butterfly valve on clip, first of all, to determine what substances in the waste water, there is a strong corrosion of acid and alkaline, or contains small particles of impurities, sealing surface material can be used with full lined fluorine, the valve body material according to the medium pressure, the choice of ductile iron or cast steel; Medium containing inorganic weak acid and alkali use EPDM valve seat, dual phase steel or aluminum bronze valve plate, valve body according to the medium pressure, under 16 kg can choose cast iron, or ductile iron material, more than 25 kg of choice cast steel material. Under normal circumstances, the sewage treatment pipeline pressure is mostly under 16 kg.
