Metal Heat Treatment Furnaces

Measuring dew point in furnace gas

Water vapor is a key component in furnace atmospheres and feed gas, affecting the chemistry between the gas and the metal parts in the process. 

Because of the wide variety of thermal heat treatment processes, target dew point temperatures can range from –60°C to elevated levels of +35°C and even higher. Due to the extremely high oven process temperatures typically involved in heat treating, a sampling system/line from the furnace to the dew point probe is normally required in order to cool the process gas before reaching the sensor.

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