Product specificationNominal diameterDN50~2600Nominal pressurePN0.25~1.0MPaMedium temperature-40~595℃Connection methodFlange typeValve bonnet typeStandard typeBody material20＃、304、316Valve plate sealing typeOpen type, rear seat type, inclined typeValve seal materials20＃、304、316Flow characteristicsApproximate equal percentageLeakage – hard seal≤0.5%×KV DetailsZSHW series ventilated butterfly valve body and valve plate are all welded with steel plate. It is a kind of butterfly valve with light weight, simple structure and convenient operation. Equipped with gears, rack-type double-piston pneumatic actuators or electronic electric actuators, it is applicable to the flow and pressure control of air or other gases with low dropout pressure and low leakage, as well as to gases in high temperature conditions. Ventilation butterfly valve selection sample download
