Modulating Fill

PURE Humidifier Co.’s new Modulating Fill Valve uses patent-pending technology to give you very tight humidity control for the most demanding conditions.


For applications that require RH staying above a minimum threshold, a smaller fluctuation allows you to set the setpoint lower. Not only does this create a cost savings, but also saves on energy and water usage, making it a more economical option than the constant overfill method.


The Modulating Fill Valve is field-retrofittable using the existing Tri-Probe in your SX, GX, ES, or EC generator. There is no need to preheat makeup water and it is unaffected by supply water pressure fluctuations, therefore there is no thermal shock to the heat exchanger or heaters—extending their life.

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