One day we received an email from our customer.

Can your engineer please make a proposal for the following:

·     Wastewater flow: 50 l/s at 15degC in / 10degC out

Clean water flow: 75l/s at 5degC in / 8 degC out

Please also give me details about:

·     What wastewater screening is needed before the heat exchanger?                   

       Just need simple grille to filter large materials like leaves and plastic bags

·     How are screenings & solids managed?

h    It has a cleaning brush

·     How are the heat exchangers maintained and how often is this needed?

      According to the water condition, usually to clean once every 3~6 month

·     What reference projects do you have for these wastewater heat exchangers?

      Pls see our website: http://www.sehenstar.com/Solutions/?1-1.html

·     How long are they guaranteed?

      One year      

·     What grade stainless steel are they made from?

      Plate: SS304L Shell: SS304

·     How are they automatically cleaned when in use?

      It has a cleaning brush on a motor for rotary cleaning

      Our engineer made a proposal for him.