Type 388 is designed in two styles: cast iron wafer and ductile iron lug. Typical points of use for the metallic butterfly valve include water and wastewater applications for either pressure or vacuum service. It is rated for pressures up to 250 psi and temperatures up to 250°F (121°C) and is available in a full range of sizes from 2 to 24".
George Fischer Inc.
(800) 854-4090