This 1/2″ Sch 80 CPVC Pneumatic Ball Valve, EPDM, Double Acting, (SOC x SOC) 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. Socket connections are joined to pipe of the same diameter with solvent welding. CPVC is a higher temperature version of PVC and has better chemical resistances. EPDM seals provide effective sealing with resistances to several chemicals over a wide range of temperatures. Our close relationship with our suppliers means we can give you the best price.