What is Cast Iron Wafer Butterfly Shutoff? A wafer style butterfly valve is made to make the total elimination of a control valve from a pipe very easy, without affecting the stability of the line. In the 'wafer' version, the value is pushed in between or secured with flanges https://cast-iron-wafer-butterfly56887.theobloggers.com/43975250/understanding-the-perks-applications-industrial-piping-systems-long-lasting-affordable-flow-control-solution-valves-for-cast-iron-wafer-butterfly-valve