Maxitrol R400-1/2 Regulator

The Maxitrol R400-1/2 Regulator is a specialized appliance gas regulator engineered for high-performance pressure control in both main burner and pilot load applications. Featuring a double diaphragm balanced valve design, this 1/2" NPT gas regulator maintains superior outlet pressure stability despite significant fluctuations in inlet pressure. Built with a rugged die-cast aluminum housing, it is designed for durability in demanding environments, including infrared heaters, industrial boilers, and commercial cooking equipment. The Maxitrol R400 series is CSA certified for 1/2 PSI Max Inlet Pressure, though it is Maxitrol tested for up to 1 PSI Max Inlet Pressure. With an adjustable 3-6" w.c. outlet pressure range, this regulator ensures precise fuel delivery for natural, manufactured, mixed, and liquefied petroleum gases. Its compact footprint and multi-poise mounting capability make it a versatile solution for contractors handling tight manifold installations while requiring precise gas regulation and high capacity characteristics.

• Double Diaphragm Technology: The balanced valve design eliminates inlet pressure effects, providing consistent performance across the full flow range.
• Exceptional Flow Capacity: Despite its small physical size, the R400-1/2 offers high capacity for industrial and large residential applications.
• Broad Application Range: Ideal for pilot lines and main burners in infrared heaters, process heaters, and electronic ignition systems.
• Rugged Construction: Utilizing corrosion-resistant internal parts and a high-strength aluminum body suitable for temperatures from -40° to 205°F.
• Multi-Position Mounting: Allows for flexible installation in various orientations (note: upright mounting required if a vent limiter is used).

Can the Maxitrol R400 be used for dead-end lockup service?
No, the Maxitrol R400-1/2 is not designed for dead-end lockup. It is intended for applications with continuous pilot or main burner loads where precise regulation is required during operation.

What is the maximum emergency exposure pressure for this regulator?
This model has an emergency exposure limit of 2.0 PSI. Exceeding this limit can cause internal damage or compromise the regulating diaphragm.

Is this regulator compatible with Propane (LP) systems?
Yes, the Maxitrol R400 is suitable for natural gas, LP gas, and LP gas-air mixtures. When sizing for LP, ensure you apply the proper conversion factors to the BTU/h capacity ratings.

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.