This 4″ Sch 80 PVC Electric Butterfly Valve, VITON, 120 VAC, (FLANGE x FLANGE) is a butterfly valve with an electric actuator installed for automatic control. This electric actuator can be configured to either open or close when 120 volts AC is applied. Butterfly valves are installed between a pair of flanges with falnge bolts. No gaskets are required, they are built into the valve face. Sch 80 PVC is robust and durable, perfect for commercial and industrial applications. VITON seals provide increased temperature resistance than EPDM seals and recommended for exposure to oils, gasoline and aggressive chemicals. Have a question? Check our technical resources section or give us a call and take advantage of our years of experience.