標準號：BS EN 10311-2005
中文標準名稱：水和其他含水液體傳送用鋼管和配件的連接用接頭
英文標準名稱：Joints for the connection of steel tubes and fittings for the conveyance of water and other aqueous liquids
標準類型：Q81
發布日期：2005/6/27 12:00:00
實施日期：2005/6/27 12:00:00
中國標準分類號：Q81
國際標準分類號：23.040.60
適用范圍：This European Standard specifies a range of jointing methods for connecting low alloy steel tubes and steel tubes and fittings for use with aqueous liquids. The following specific joint types are covered by this document: butt welded joints, welded spigot and socket (or sleeve joints), welding collars, flange joints, threaded joints, spigot and socket joints with seal and mechanical couplings. This European Standard specifies requirements for the strength and integrity of the joints and the testing of the joints. This European Standard does not specify the requirements for the tubes or the fittings. This European Standard is suitable for joints intended for the conveyance of water for human consumption, after an appropriate coating has been applied. This European Standard is not intended for use in heating networks where elevated temperature properties are required. Flexible joints which permit significant angular deflection, both during and after installation and which can accept slight offset of the centre line, are not covered by this European Standard.