Costruction: sheet metal S235JR EN10025.
SRA-S exchanger: heat exchanger with single spiral, built with finned copper pipe, fixed on flange Ø300 mm.
SRA-D exchanger: heat exchanger with double spiral, built with finned copper pipe, fixed on flange Ø300 mm.
200 ÷ 3000 model: vitrified internal anticorrosive processing (EMAIL), applied in the oven at 860° C, useful to use and consumption of drinking water.
4000 ÷ 5000 model: internal anticorrosive processing “CERAMPLAST” with whiteware, used for high work temperature.
Insulation and external finish: 1000 model: rigid polyurethane cupels; sp. 100: flexible polyurethane; and for the other models, PVC external finish.