Maxitrol R400B10-1022 Spring

The Maxitrol R400B10-1022 is a professional-grade red spring engineered for precise pressure management in Maxitrol R400 and R400S series regulators. Designed for high-demand applications, this replacement regulator spring allows for an adjustable outlet pressure range of 10-22" w.c., making it a critical component for technicians calibrating systems for natural gas, liquid propane (LP), or vapor-air mixtures. As part of the Maxitrol balanced valve design, it assists in maintaining stable discharge pressure despite significant fluctuations in inlet pressure, ensuring consistent performance for main burner and pilot load applications.

This OEM Maxitrol spring is built to withstand the rigors of residential and light-commercial gas piping systems. Its specific tension characteristics are optimized for the R400 1/2-inch regulator body, preventing common issues like hunting or fluttering in the gas line. Whether you are performing a field conversion or system maintenance, the R400B10-1022 provides the necessary mechanical force to reach higher manifold pressures required by specific HVACR appliances and infrared heaters. Its red color coding allows for rapid visual identification during multi-stage inspections or in crowded utility rooms.

• Precise Pressure Control: Specifically calibrated to provide a stable 10 to 22 inch water column range for sensitive gas controls.
• Broad Compatibility: Drop-in fit for both R400 and R400S balanced valve regulators.
• System Stability: Maintains set-point accuracy across a -40 to 205°F ambient temperature range.
• Fuel Versatility: Suitable for use in systems running Natural Gas, LP, or LP gas-air mixtures.
• Durable Engineering: High-tensile steel construction ensures long-term resistance to spring fatigue.

What is the difference between the R400 and R400S regarding this spring?
The R400B10-1022 is compatible with both. The R400 is the standard poppet design, while the R400S features the same balanced valve technology with a different housing configuration, but both utilize the same spring pocket dimensions.

How do I identify this spring in the field?
Maxitrol uses a color-coding system for their regulator springs. This model is painted red to denote its 10-22" w.c. pressure range, distinguishing it from lower pressure versions like the brown or pink springs.

Can this spring be used in 2 psi systems?
This spring is designed for the R400 series appliance regulators, which typically have a maximum emergency exposure limit of 2 psi. Always verify the specific maximum inlet pressure of your regulator body before installation.

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.