Condensate Polishers Shipped for Local University

Last month, Res-Kem shipped a quadruple condensate polisher system to a local university. The condensate polishers are used to treat the water in the condensate loop, reducing water treatment chemical usage and reducing heat waste from excessive blowdown.
The system is comprised of four individual ASME-code stainless steel tanks with stainless steel internals, face piping, and Aquamatic valves. All external piping was a combination of welded and flanged stainless steel. Each system has an Aquamatic 962 controller to operate the valves during the backwash and regeneration cycle. The regeneration and backwash cycles are initiated by a differential pressure switch.

The local Res-Kem representative sold and installed the system at the university. The new system replaced a twin condensate polisher that had reached the end of its life.

The design flow rate is: 450 gpm
The peak flow rate is: 600 gpm
As stated above, the regeneration is initiated by a DP Switch.


The qualification process by the university was very rigorous. First university personnel visited out manufacturing facility in Aston, PA to see a similar system being built in our assembly facility. Afterwards, university personnel visited a local customer with a water softener and water dealkalizer. After we were qualified, our engineers worked with the site personnel to modify our standard design to fit the site's requirements.