What is Cast Iron Wafer Butterfly Shutoff? A wafer design butterfly valve is designed to make the full removal of a control valve from a pipeline easy, without influencing the integrity of the line. In the 'wafer' variation, the value is pushed in between or fastened with flanges (what's https://sergioycbaz.amoblog.com/understanding-the-conveniences-applications-industrial-piping-equipments-sturdy-cost-efficient-circulation-control-remedy-shutoffs-for-cast-iron-wafer-butterfly-valve-59354335