Specification for expansion vesses for sealed hot water heating systems. Domestic and small industrial systems using vessels with an internal diaphragm.
STANDARD published on 7.4.1972
Designation standards: BS 4814-1:1972
Note: WITHDRAWN
Publication date standards: 7.4.1972
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Category: Technical standards BS