Maxitrol R400B10-512 Spring

The Maxitrol R400B10-512 is a precision-engineered blue spring designed specifically for use with Maxitrol R400 and R400S series gas pressure regulators. Built for high-demand commercial and industrial heating applications, this spring allows for a specialized outlet pressure range of 5" to 12" W.C., ensuring stable gas delivery to pilot lines and main burners. As a technical HVAC professional, you know that maintaining the correct manifold pressure is critical for appliance efficiency and safety. This replacement regulator spring is a standard component for technicians calibrating systems for specific water column requirements. With a length of 1-7/8 inches and robust construction, it provides the necessary tension to counter inlet pressure variations without compromising the regulator's exceptional capacity characteristics. Whether you are servicing infrared heaters or large boiler pilot loads, this blue spring is the reliable solution for achieving mid-range pressure settings in compliant gas systems.

Key Benefits:

• Precise Pressure Control: Specifically calibrated for a 5-12 inch water column range, ideal for specialized commercial heating equipment.
• Universal Compatibility: Engineered to fit both Maxitrol R400 and R400S regulator models used in process control.
• Durable ANSI Z21.18 Construction: Manufactured to meet rigorous standards for natural gas and LP gas applications.
• Easy Field Identification: Color-coded blue to ensure rapid identification and prevent incorrect spring installation during maintenance.

Common Questions:

• Can this spring be used in an R500 series regulator? No, this is specifically designed for the R400 and R400S series. Different series require springs with varying diameters and tensions.
• Is this spring suitable for LP gas air mixtures? Yes, when used within a compatible Maxitrol regulator, this spring is rated for natural, manufactured, mixed, and LP gases.
• Does this spring support dead-end lockup service? No, the R400 series regulators are not intended for dead-end lockup; they are designed for steady outlet pressure during flow.

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.