TY - BOOK ED - British Standards Institution TI - Glossary for valves and valve parts (for fluids) U1 - 621.84 PY - 1955/// CY - London PB - British Standards Institution KW - Valves N1 - Pt.1: Screw-down stop, check and gate valves (BS.2591:pt.1:1955). Pt.2: Safety valves and relief valves (BS.2591:pt.2:1956). Pt.3: Plug valves and cocks (BS.2591:pt.3:1956) ER -