Purpose: The closed expansion vessel is used to compensate for the change in water volume that occurs due to temperature differences in closed hot water heating systems.

Technical characteristics: Closed expansion vessels are cylindrical and made by welding from steel sheet P265GH. The vessels are manufactured in accordance with the Rulebook on technical requirements for design, manufacturing, and conformity assessment of pressure equipment. At the customer’s request, we manufacture expansion vessels up to 20 bar. All our closed expansion vessels are protected against corrosion on the outside. Connections are made with flanges and internal threads. Based on requests, we make vessels of required volumes, working pressures, and arrangement of connections.