Maxitrol MR610-1 Valve

The Maxitrol MR610-1 is a high-performance 1" NPT modulating gas valve and regulator engineered for atmospheric burners and Selectra electronic gas flame modulation systems. This modulator-regulator valve performs a critical dual function, providing both precise pressure regulation and instantaneous flame adjustment without the need for external mechanical activation or motorized butterfly valves. Designed to handle a maximum inlet pressure of 1/2 PSI (14" w.c.), the Maxitrol MR610-1 ensures steady, non-fluctuating temperature control for demanding HVACR applications such as industrial baking, drying processes, and stabilized area heating. By utilizing a sophisticated internal diaphragm and plunger assembly, it maintains consistent minimum and maximum firing rates, optimizing fuel efficiency and thermal stability. This 1 inch gas valve is compatible with natural, manufactured, mixed, and liquefied petroleum gases, making it a versatile choice for contractors upgrading Series 20 or Series 30 gas control systems.

• Precise Modulation: Delivers infinite, continuous flame adjustment for superior temperature stability in process heating environments.
• Dual-Function Design: Integrates gas pressure regulation and modulation into a single compact unit, reducing installation footprint and complexity.
• High Compatibility: Seamlessly interfaces with Maxitrol Selectra controls and SC11 signal conditioners for automated system integration.
• Rugged Construction: Built to withstand ambient temperatures ranging from -40°F to 125°F, ensuring reliable performance in harsh mechanical rooms.
• Zero Mechanical Linkage: Operates without motors or linkages, minimizing wear parts and reducing long-term maintenance requirements for the HVAC technician.

Can the MR610-1 be used with negative pressure applications?
No, the MR610-1 is intended for use with atmospheric emitters and direct-fired burners. For pull-through or negative pressure systems, technicians should look toward the M411 or M511 series specifically designed for those pressure profiles.

Does this valve require an upstream regulator?
The MR610-1 is a modulator-regulator, meaning it handles pressure regulation internally. However, if your line pressure exceeds the 1/2 PSI rating, an additional step-down regulator is required to prevent damage to the internal diaphragm.

What is the proper mounting orientation for this part?
To maintain accurate regulation and plunger movement, this valve must be mounted in an upright position within a horizontal pipe run. Deviating from this orientation can lead to inconsistent modulation and potential gas flow issues.

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.