This 1?” Sch 80 PVC Pneumatic Ball Valve, EPDM, Double Acting, (SOC x FNPT) is a true union ball valve with a pneumatic actuator on top for automatic control when compressed air is applied. the pneumatic actuator opens and closes when compressed air is applied to the respective ports. One side connects to a pipe using solvent welding and the other has female threads. Sch 80 PVC is robust and durable, perfect for commercial and industrial applications. EPDM seals provide effective sealing with resistances to several chemicals over a wide range of temperatures. Why pay more at your local store? Shop Petram PVC Supply for your best price.