What is Cast Iron Wafer Butterfly Valve? A wafer design butterfly valve is created to make the total elimination of a control valve from a pipeline simple, without impacting the integrity of the line. In the 'wafer' variation, the value is pushed between or attached with flanges (what's good https://zanderqwwwu.blogs100.com/38060072/understanding-the-perks-applications-industrial-piping-solutions-long-lasting-cost-efficient-circulation-control-option-valves-for-cast-iron-wafer-butterfly-shutoff