Worcester Expansion Vessel

product code 87161055450

Worcester Expansion Vessel / Expansion Tank, Part No. 87161055450 - This is a genuine Worcester Part Expansion Vessel. The expansion vessel is a small tank which is used to protect closed water heating plumbing and hot water plumbing from too much pressure. The tank is partially filled with air, the compressibility of which cushions any shock caused by water hammer and absorbs excess water pressure caused by thermal expansion. - Part No. 87161055450 - Genuine Worcester Part - Expansion Vessel - Expansion Tank