BS 5163-1:2004 PDF

1   Scope This part of Bs 5163 gives guidance on selection, including reference to preferred features and operation, of cast iron gate valves, complying with Bs EN 1074‑1 and Bs EN 1074‑2, with flanged ends, that are ring key and bar operated. These valves are primarily for underground use for waterworks purposes and primarily for use with water intended for human consumption in the United Kingdom.