Plants for recycling, purification and sustainable elimination of waste and waste, such as wastewater purifiers, biodigesters and incinerators, are increasingly used and sophisticated. The latter have also become producers of electricity and heat. Each of these processes involves huge masses of fluids and gases, often at critical temperatures and pressures, or potentially very polluting. Dav Coil is able to manufacture heat exchangers for large systems as well as for small integrated sub-applications specially designed and made for each specific need.