0781-3516 - Victor VTS250 Two-Stage Industrial Air Regulator CGA 590

Precision Control with Victor VTS 250 Series

The Victor 0781-3516 VTS250C-590 is a premium medium-duty two-stage regulator designed specifically for Industrial Air applications. Engineered for environments where precision and consistency are paramount, this regulator excels in maintaining a set delivery pressure over a wide range of decreasing inlet pressures. This characteristic makes it an indispensable tool for laboratory testing, calibration benches, and specialized industrial processes where pressure fluctuation could compromise results.

At the core of the VTS 250 series is a robust two-stage mechanism. The first stage reduces the high-pressure gas from the cylinder to an intermediate pressure, while the second stage reduces it further to the precise working pressure desired. This dual-reduction process isolates the final delivery pressure from the drastic changes in cylinder pressure that occur as the gas is consumed. The result is a "flat" delivery curve that provides unwavering performance from a full cylinder down to empty.

Robust Construction and Materials

Victor has constructed this regulator to withstand the rigors of daily industrial use. The body and spring housing cap are machined from die-forged brass, offering superior tensile strength compared to cast alternatives. Internal components are equally robust, featuring a stainless steel ball in the adjustment key for reduced friction and a Delrin insert bushing for durability. The diaphragm is crafted from fabric-reinforced neoprene, sized at 1.3 inches and 1.75 inches for the respective stages, ensuring sensitivity to pressure changes while maintaining structural integrity.

Technical Specifications

The unit connects via a CGA 590 inlet, the standard for Industrial Air cylinders, and supports a maximum inlet pressure of 3000 PSIG. The delivery range is calibrated between 4 and 80 PSIG, making it versatile for various pneumatic requirements. A sintered bronze inlet filter, plated with electroless nickel, protects the internal seating mechanism from particulate damage, extending the service life of the regulator. With a flow coefficient (Cv) of 0.082, it provides adequate flow for medium-duty tasks without sacrificing control.