Maxon 200SMA21AA11BB11A0 Gas Valve R-410A While it monitors the flame

While it monitors the flame via rectification

ensuring stability under continuous thermal loads

this direct-acting unidirectional valve is specifically designed for steam applications featuring a robust brass valve body that stands up to 0-100 PSI steam pressure

Field Calibratable: Features an internal potentiometer for fine-tuning the space temperature calibration to match on-site thermometer readings

Maxon 200SMA21AA11BB11A0 Gas Valve R-410A While it monitors the flameThe Maxon 200SMA21AA11BB11A0 is a heavy duty 2 inch ANSI threaded gas valve designed for high capacity industrial burner systems. Featuring a standard port flow configuration and a normally open 2 way operation, this cast iron gas shut off valve is built for general purpose applications where reliability is non negotiable. The unit utilizes Buna body O rings and a bumper for superior sealing performance. With 115Vac 60Hz solenoid and motor voltages,