What is Cast Iron Wafer Butterfly Shutoff? A wafer style butterfly shutoff is developed to make the full elimination of a control shutoff from a pipe very easy, without influencing the honesty of the line. In the 'wafer' version, the value is pressed in between or secured with flanges https://raymondtvwut.wizzardsblog.com/37511167/comprehending-the-benefits-applications-industrial-piping-equipments-long-lasting-economical-flow-control-remedy-valves-for-cast-iron-wafer-butterfly-shutoff