Maxitrol R400B10-512 Blue Spring 5-12" WC for R400 & R400S Gas Pressure Regulators

The Maxitrol R400B10-512 is a blue replacement spring rated for 5-12" W.C. (water column) designed specifically for use with Maxitrol R400 and R400S series gas pressure regulators. This genuine OEM spring allows you to adjust the outlet pressure range of your regulator to match your specific application requirements.

Key Features:

• Pressure range: 5-12 inches water column
• Blue color-coded for easy identification
• Direct replacement spring for R400 and R400S regulators
• Precision-engineered for consistent pressure control
• Compatible with both R400 and R400S series balanced valve regulators

The R400 and R400S series regulators are intended for use with both main burner and pilot load applications, featuring a double diaphragm balanced valve design that maintains steady outlet pressure control with widely varying inlet pressures. By replacing the spring, you can customize the outlet pressure range to suit your specific gas appliance needs without replacing the entire regulator assembly.

This replacement spring is essential for maintaining proper gas pressure regulation in heating systems, boilers, furnaces, and other gas-fired appliances. Regular spring replacement ensures optimal performance and safety of your gas pressure control system.