Maxitrol 220D-1 1/4 Regulator

The Maxitrol 220D-1 1/4 is a high-performance servo-operated gas pressure regulator designed specifically for commercial and industrial applications where precise pressure control is non-negotiable. Featuring a 1-1/4" NPT connection, this pilot-loaded regulator handles a maximum inlet pressure of 10 PSI, effectively reducing it to a stable 1-3 PSI outlet pressure range. Unlike standard direct-acting models, the 220D series utilizes a specialized diaphragm and pilot design to maintain a consistent set point regardless of fluctuating inlet pressures or varying flow demands. This ensures optimal combustion efficiency for high-capacity boilers, infrared heaters, and large-scale furnace systems. Constructed with a rugged housing and engineered for durability in demanding mechanical rooms, this gas pipe regulator provides the reliable regulation required for natural gas and propane systems. Contractors selecting the 220D-1 1/4 benefit from its high flow capacity and sensitive response to downstream demand changes, minimizing pressure drop and preventing equipment lockout.

Key Technical Benefits

• High Flow Capacity: Servo-operated design allows for higher flow rates than standard regulators of a similar footprint.
• Precise Pressure Regulation: Maintains a consistent 1-3 PSI outlet even during significant fluctuations in the 10 PSI inlet supply.
• NPT Compatibility: Standard 1-1/4 inch threading ensures seamless integration into existing commercial gas piping.
• Resilient Pilot Loading: Provides superior sensitivity and faster response times for high-demand industrial burners.
• Multi-Fuel Readiness: Engineered for peak performance with natural gas, LP gas, and air/nitrogen mixtures.

Common Questions

What is the primary advantage of a servo-operated regulator over a direct-acting model?
The servo-operated design uses a pilot to control the main valve, allowing the Maxitrol 220D to handle much higher flow volumes with significantly less "droop" or pressure deviation compared to mechanical spring-loaded regulators.

Can the Maxitrol 220D-1 1/4 be mounted in any orientation?
For peak accuracy and to prevent debris accumulation on the diaphragm, it is recommended to install the regulator in a horizontal pipe run with the tower pointing upright; however, verify specific job site venting requirements before final commissioning.

What happens if the inlet pressure exceeds 10 PSI?
Exceeding the 10 PSI maximum inlet pressure can damage the internal diaphragm and pilot assembly. Always install a primary stage regulator upstream if the supply line pressure exceeds this rating to ensure system safety and longevity.

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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.