Automatic valve

Hydro Instruments, of Quakertown, Pa., has launched a new automatic valve for flow proportioning, residual control or compound loop control of vacuum gas chlorination and sulfonation systems. The new Hydro Automatic Valve offers a highly accurate, dependable and user friendly solution for automatic control of chlorine and sulfur dioxide gas feed rate. The new unit is enclosed in one Nema 4X enclosure with a compact and simple design.