0781-3558 - Victor VTS252A-350 Two-Stage Methane/Hydrogen Regulator CGA 350

Precision Control for Methane and Hydrogen Applications

The Victor 0781-3558 VTS252A-350 Regulator is a premium medium-duty solution designed specifically for the regulation of Methane and Hydrogen gases. Part of the renowned VTS 250 Series, this regulator utilizes a sophisticated two-stage design. Unlike single-stage models, two-stage regulators reduce cylinder pressure in two distinct steps, ensuring that the delivery pressure remains constant even as the inlet pressure from the cylinder decreases. This feature is indispensable for laboratory settings, testing environments, and industrial applications where consistent flow and pressure are critical to the integrity of the work.

Engineered for durability and reliability, the VTS252A-350 features a robust die-forged brass body and a brass spring housing cap. This heavy-duty construction protects the internal components from the rigors of daily industrial use. The regulator is equipped with a 1.3-inch to 1.75-inch fabric-reinforced neoprene diaphragm, which works in conjunction with a stainless steel diaphragm mechanism to provide accurate, long-lasting service. The precision-machined nozzle and adjusting spring are pretested to ensure optimum flow control within the 2 to 15 PSIG delivery range.

Safety and ease of use are paramount in the design of the Victor 0781-3558. It includes an external self-reseating relief valve (though not designed to protect downstream equipment, it adds a layer of safety at the regulator level). The adjustment mechanism features a Delrin insert bushing and a stainless ball in the key, making pressure adjustments smooth and effortless. Additionally, an electroless nickel-plated bronze sintered inlet filter prevents particulate contamination from entering the regulator, extending its service life. With a CGA 350 inlet connection and a 9/16"-18 LH(M) outlet, this regulator is ready to integrate seamlessly into your specialized gas systems.