Vasi d'espansione termici solari
High-quality diaphragm expansion vessels for closed solar systems. Equipped with a gas filling of nitrogen and individually tested for tightness and precharge pressure. The vessels comply with the standards EN13831 and EN12828 and are approved acc. to Pressure Equipment Directive 2014/18/EU. The diaphragms of butyl are approved for a glycol content of up to 50% water. The powder-coated steel vessels with a galvanised clamping ring have an uncoated water connection to allow for a better screw connection. The vessels from 35 l and more are equipped with welded-on support feet.
