Maxitrol M620B-3/4 Modulating Gas Valve with Low Fire Adjustment HVAC Control Valves & Actuators - 3/4

The Maxitrol M620B-3/4 is a 3/4-inch modulating gas valve designed for precision temperature control in commercial and industrial heating applications. Part of the Selectra® Electronic Gas Flame Modulating System, this valve provides precise, non-fluctuating, instantaneous temperature control without requiring a motor or mechanically driven butterfly valve.

Key Features:

• 3/4-inch NPT pipe connection size
• Low fire adjustment accessible on both sides for flexible installation
• Designed for direct fired (negative pressure) burner applications
• Provides infinite, continuous flame modulation
• Maximum outlet pressure of 7" w.c. (1.7 kPa)
• Maximum current draw: 0.5 amps
• Voltage increase corresponds to outlet pressure increase
• No external mechanical activation required

Applications:

• Commercial and industrial gas burners
• Boiler systems
• Process heating equipment requiring consistent temperature control
• Stabilized area heating and elevated heating applications
• Baking, drying, and process applications

Compatible with natural gas, manufactured gas, mixed gas, liquefied petroleum, and liquefied petroleum gas-air mixtures. Designed for use with Maxitrol Selectra® series modulation systems (Series 14, 24, 44, 94) or SC11 Signal Conditioners. A separate gas pressure regulator must be used upstream with this modulator valve. CSA certified to Z21.18 and CSA 6.3 standards.