Maxitrol R600S-3/4 Regulator

The Maxitrol R600S-3/4 is a specialized 3/4" NPT gas pressure regulator engineered for high-capacity burner and pilot load applications. Utilizing a double diaphragm balanced valve design, this unit maintains a steady outlet pressure despite significant inlet pressure fluctuations, making it a reliable choice for infrared heaters and industrial boiler pilot lines. The R600S-3/4 is rated for a 5 PSI maximum inlet pressure (Maxitrol tested) and comes factory-set with a 3-6" w.c. outlet pressure spring range. Its rugged die-cast aluminum housing and corrosion-resistant internal components ensure durability in demanding mechanical rooms. Ideal for natural gas and propane (LP) systems, this appliance regulator supports a high flow capacity of up to 1,400,000 BTU/h. Technicians should note that while it provides exceptional control for low-flow standing pilots, the RS series is not intended for dead-end lockup service. This compact gas regulator is suitable for multi-positional mounting, though upright installation is required when utilizing a vent limiting device.

Key Benefits

• Balanced Valve Design: The double diaphragm architecture eliminates inlet pressure effect, ensuring highly accurate downstream regulation.
• High Capacity, Small Footprint: Delivers up to 1,400,000 BTU/h while maintaining a compact physical size for tight manifold installations.
• Multi-Fuel Compatibility: Certified for use with natural gas, LP gas, and LP-air mixtures.
• Extreme Temperature Resilience: Engineered to operate in ambient temperatures ranging from -40°F to 205°F.
• Precise Pilot Control: Soft seating and high-quality synthetic rubber components provide reliable pilot load management.

Common Questions

• Can this regulator be used for positive dead-end lockup? No, the R600S-3/4 is designed for main burner and pilot applications but is not suitable for dead-end lockup service.
• What is the maximum inlet pressure rating? While CSA certified for 1/2 PSI, this "S" model is Maxitrol tested for inlet pressures up to 5 PSI.
• Is a vent line required for installation? This unit features a 1/8" NPT vent connection; local codes may require a vent line or the installation of a vent limiting device.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.