Harris 25GX Single-Stage Nitrogen Purging Regulator, 0-500 PSIG, CGA 580

Harris 25GX-500-580 Single-Stage Nitrogen Purging Regulator

The Harris Model 25GX-500-580 is a high-performance single-stage pressure regulator engineered specifically for the HVAC and industrial sectors. Designed to handle inert gases such as Nitrogen, Argon, and Helium, this regulator is an essential tool for purging, pressure testing, and blanketing applications. It combines robust construction with precision engineering to deliver reliable performance in the field.

At the core of the 25GX series is a forged brass body paired with a chrome-plated zinc bonnet. This material combination ensures a long service life and resistance to corrosion while maintaining an economical price point compared to fully forged brass alternatives. The regulator features a neoprene diaphragm which provides superior pressure control and flexibility, ensuring steady flow rates even under varying inlet pressures. A key technical advantage is the one-piece encapsulated seat design. This assembly includes an internal filter that protects the PTFE Teflon® seat from particulate contamination, a common cause of regulator failure in industrial environments.

Operational ease is a priority in the design of the 25GX-500-580. It is equipped with a large brass T-screw adjusting handle, allowing technicians to make precise pressure adjustments easily, even when wearing work gloves. The unit features two large, 2.5-inch steel dual-scale gauges that are easy to read, displaying both cylinder contents and delivery pressure. With a maximum inlet pressure of 3000 PSIG and a delivery range of 0-500 PSIG, this regulator is perfectly suited for high-pressure leak testing of HVAC systems. The outlet is a standard 1/4-inch 45-degree flare SAE connection (CGA 165), ensuring compatibility with standard charging hoses.

This regulator is manufactured in the United States and conforms to CGA-E-4 standards for gas pressure regulators. It represents a smart investment for professionals requiring a dedicated, durable, and accurate regulator for nitrogen services. The product is backed by Harris's impressive 7-year warranty, underscoring the manufacturer's confidence in its durability and build quality.