Stainless steel is the ideal material for sanitary hot water tanks and offers a great deal of advantages compared to copper and enameled steel. Stainless steel is safe and hygienic, strong and light in weight. It is free of maintenance and has an almost unlimited durability. Moreover, stainless steel is completely recyclable. Therefore the higher purchasing price compared to that of an enameled hot water tank is more than compensated during the lifetime of the stainless steel hot water tank.There are different types of stainless steel and within those types there are various grades.

Not every type and certainly not every grade is suited for the application in sanitary hot water. With increased chloride contents, water at higher temperatures can become extremely aggressive. The right choice of stainless steel is therefore important. The processing of stainless steel interferes with the chromium oxide layer. In order to restore this so-called passive layer, which makes stainless steel corrosion resistant, a thorough after-treatment called pickling and passivating is necessary. DEJONG’s modern pickling installation guarantees that the passive layer is restored completely.