3000554 - Harris Model 425 Heavy-Duty Oxygen Regulator 0-50 PSIG

Heavy-Duty Industrial Oxygen Regulation

The Harris Model 425-50-540 is a premium single-stage cylinder regulator designed to meet the rigorous demands of heavy-duty industrial applications. Engineered with a completely forged brass body and bonnet, this regulator offers superior structural integrity and resistance to corrosion compared to standard alloy models. It is specifically calibrated for Oxygen service with a CGA 540 inlet connection, providing a precise delivery pressure range of 0-50 PSIG.

At the core of the Model 425's reliability is Harris's proprietary one-piece encapsulated seat design. This advanced engineering feature integrates an internal filter that effectively shields the PTFE Teflon® seat from particulate contamination—a common cause of regulator failure. By preventing debris from entering the high-pressure seat area, the regulator maintains a positive seal and prevents "creep" (rising delivery pressure), ensuring consistent performance and operator safety over a long service life.

The regulator is equipped with large, easy-to-read 2.5-inch brass gauges that display both PSI and BAR scales, allowing for quick monitoring of cylinder contents and delivery pressure. The ergonomic adjustment knob is designed for smooth, low-torque operation, enabling precise pressure settings even when wearing work gloves. Safety is further enhanced by a tamper-proof, self-reseating internal high-pressure safety valve. Manufactured in accordance with CGA E-4 standards and UL listed, the Harris Model 425-50-540 is a testament to quality manufacturing, backed by an industry-leading 7-year warranty.