Do Zilmet expansion vessels and heat exchangers bear the CE marking?

According to the provisions of the Pressure Equipment Directive PED 2014/68/EU, expansion vessels and heat exchangers, whose product between the maximum operating pressure and the volume is greater than 50 bar per litre, must bear the CE marking on the identification label. Expansion vessels and heat exchangers, whose product between the maximum operating pressure and volume is less than or equal to 50 bar per litre, cannot bear the CE marking on the identification label: products which do not may bear the CE marking on the identification label, they must be designed and built according to correct construction practice.