The GO Regulator SBPR Series is sub-atmospheric spring-loaded back pressure regulator designed for stable and accurate upstream pressure control in gas and liquid process systems. The regulator automatically relieves excess inlet pressure once the preset pressure setting is exceeded, maintaining constant upstream pressure and protecting sensitive instrumentation and process equipment from overpressure conditions.

The SBPR Series is engineered for compact installation, reliable repeatability, and dependable shutoff performance across a broad range of industrial and analytical applications. Its diaphragm-operated design provides fast response characteristics and smooth throttling behavior, making the regulator suitable for both low-flow instrumentation service and general process applications.

Standard construction materials include 316 stainless steel and brass, with optional corrosion-resistant alloys and elastomer configurations available for compatibility with aggressive gases, liquids, and high-purity media. Available pressure ranges and Cv options allow flexible integration into systems requiring precise low-pressure or moderate-pressure control.

Typical applications include analytical instrumentation, sample conditioning systems, gas distribution panels, laboratory systems, semiconductor support equipment, pilot plants, chemical processing systems, and industrial process installations requiring reliable upstream pressure regulation and overpressure protection.