Maxitrol R5210-38 Spring

When you are performing a field conversion or fine-tuning the outlet pressure on a commercial gas train, the Maxitrol R5210-38 is the specific pink spring required for the job. Engineering for a 3-8" W.C. (water column) range, this component is a direct OEM fit for the Maxitrol RV52, R500, and R500S series regulators. For a veteran technician, this means you can adjust the delivery pressure to the manifold without swapping out the entire valve body, maintaining precise gas regulation for natural gas or LP applications.

The Maxitrol pink spring is calibrated for high-capacity flow, ensuring that even under varying inlet pressures up to 2 PSI, the regulator spring maintains a stable set point. Its durable construction is designed to withstand HVACR environmental demands without losing tension or calibration over time. Whether you are servicing a commercial gas regulator or an industrial oven burner, this Maxitrol R5210-38 provides the literal backbone for accurate fuel-air mixing and combustion efficiency.

• Specifically calibrated for an outlet pressure range of 3" to 8" W.C.
• Compatible with Maxitrol RV52, R500, and R500S regulator bodies.
• Color-coded pink for instant field identification and error-free installation.
• Supports Straight-Thru-Flow (STF) designs for high-capacity gas loads.
• Maintains stable pressure regulation across various fuel types, including NG and Propane.

What is the maximum inlet pressure for this spring?
While the spring dictates the outlet range, the Maxitrol R5210-38 is typically used in regulators rated for an inlet pressure of up to 2.0 PSI (check your specific regulator body rating).

Can I use this spring in a 325 series regulator?
No. This spring is specifically engineered for the R500 and RV52 series. Using it in a 325 series may result in improper seating and unsafe outlet pressures.

How do I identify the pressure range on a job site?
Maxitrol uses standard color coding. The pink color of the R5210-38 signifies the 3-8" W.C. range, whereas red or blue springs indicate higher pressure thresholds.

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.