Two standard sizes are available with evaporation rates from 5 to 75 gallons per hour. By evaporating water from a process tank, additional volume is made available for some or all of the counterflowing rinse water and dragout. The process tank evaporation rate is increased by circulating the solution through the large surface area in the evaporative tank which is exposed to forced air. Depending upon the application, the concentrate can be recycled or disposed of at greatly reduced costs resulting in higher profits. Zero discharge and closed loop systems offer reduced operating and treatment costs and avoid problems associated with environmental compliance.
Systems are available to operate with steam, hot water, electricity, gas, or oil.