Maxitrol M611-3/4 3/4 Inch Modulator Valve

The Maxitrol M611-3/4 is a 3/4-inch modulator valve for direct-fired (negative pressure) burners in HVAC systems. It responds to variations in voltage to control gas pressure. The outlet pressure rises in tandem with the voltage. This valve has an adjustable orifice bypass for low fire settings and an upstream pressure regulator. The Maxitrol M611-3/4 controls how much hot water flows to radiant floor heating panels or radiators in hydronic heating systems. It provides enhanced comfort, energy efficiency, and less wear and tear on system components by precisely controlling pressure. This is accomplished by keeping the temperature steady with little variations, which promotes more even heating and less stress on the system.