True Union Ball Valves are an economical, PVC constructed ball valves, which is ideal for chemical and wastewater applications. The true union design allows for easy removal from a piping system without breaking down piping connections. It offers multiple safety and convenience features. It includes a safe blocking design that allows downstream pipe removal, a stem equipped with a double o-ring sealing arrangement for superior durability, and a handle that doubles as a built-in spanner wrench when maintenance is required. It features include the full port design, reversible ptfe seats, double stem seals, easy to service, easily automated. Its safety blocks in both upstream and downstream direction for easy and safe system maintenance. Its double union design permits quick, easy piping system installation and removal, maintenance. It is externally adjustable, fully replaceable and has immeasurable pressure drop. It has the handle that indicates valve open and close position and provides safety design blow-out proof stem. All valves are hydrostatically tested. It is available in socket, threaded and flanged end configurations.