Maxitrol R400Z-3/8 Regulator

The Maxitrol R400Z-3/8 is a professional-grade zero governor gas regulator designed for high-precision air-gas mixing and flow control in commercial burner systems. Utilizing a double diaphragm balanced valve design, this unit maintains exceptionally steady outlet pressure despite significant fluctuations in inlet conditions. The R400Z-3/8 features a 3/8" NPT connection and is engineered for applications requiring atmospheric pressure regulation, such as nozzle mixers, proportional premixers, and infrared heaters. This model is CSA certified for 1/2 PSI maximum inlet pressure and has been Maxitrol tested for operation up to 1 PSI. The rugged aluminum die-cast housing and corrosion-resistant internal components ensure durability in demanding mechanical environments, while the high-quality synthetic rubber diaphragms provide reliable performance across a wide ambient temperature range. Note that the R400Z-3/8 is technically identical to the R400Z-3/8-1PSI-UL, making it a drop-in natural gas regulator replacement for systems requiring UL-certified performance levels.

Key Benefits for Contractors

• Precise Pressure Control: The zero governor logic allows for accurate outlet pressures close to atmospheric levels, essential for proportional premixers.
• Balanced Valve Construction: Eliminates inlet pressure effect on the valve, ensuring consistent gas flow control even during supply surges.
• Compact Footprint: The double-diaphragm architecture allows for a smaller physical profile without sacrificing flow capacity.
• Versatile Application: Suitable for natural, manufactured, mixed, and LP gas-air mixtures in both main burner and pilot load setups.
• Multi-Poise Mounting: Designed for flexible installation, though upright mounting is recommended for optimal sensitivity.

Common Questions & Installation Tips Can the R400Z-3/8 be used for zero governor applications? Yes, the 'Z' designation indicates this is a zero governor regulator specifically built for air-gas mixing applications and atmospheric pressure control. What is the maximum inlet pressure for this regulator? The unit is CSA certified for 1/2 PSI; however, it is Maxitrol tested to handle up to 1 PSI in specific industrial configurations. Is this regulator compatible with propane? Yes, it is suitable for natural gas, LP gas, and various mixed gas families common in industrial burner systems.

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.