BS EN 10311 is part of a framework of related specifications. It supersedes the earlier standard and is designed to be used in conjunction with other standards to form a complete specification for a piping system. The table below illustrates these key relationships.
BS EN 10311 is a harmonized standard that specifies the requirements for several types of joints used with steel tubes and fittings. Its primary application is in systems designed to convey water—including potable water, raw water, and wastewater—as well as other aqueous liquids.
: The text specifies precise dimension thresholds, including standard sleeve lengths (e.g., minimum overlap length formulas like for specific outside diameters).
BS EN 10311 isn’t glamorous. It won’t make headlines. But the next time you turn on a tap and clean, pressurized water flows without a single drip from a steel pipe joint—you’ll know there’s a standard behind that miracle. And now you know its story. Bs En 10311 Pdf
The European standard is a critical document for engineers, manufacturers, and quality assurance professionals working with steel pipelines. It specifies the technical delivery conditions for joints used to connect steel tubes and fittings. These joints are primary components in networks transporting water, gas, and other liquids.
Connections that use a gasket or seal to maintain integrity.
Confirms joints do not pull apart under physical soil shift or water hammer events. Sustained high bar testing inside specialized chambers. BS EN 10311 is part of a framework of related specifications
: Suitable for transporting water for human consumption when combined with appropriate coatings. Non-Alloy/Low-Alloy Steel
You can purchase the official PDF from these authorized national standards bodies:
: Made between tubes or fittings with ends prepared according to Welded Spigot and Socket (Sleeve) Joints BS EN 10311 is a harmonized standard that
Systems to verify that products maintain required performance over time under foreseeable stresses. Obtaining the BS EN 10311 PDF
The standard outlines a wide range of specific connection methods to ensure leak-free operations: Welded spigot and socket (or sleeve joints) Welding collars Flange joints Threaded joints Spigot and socket joints with an elastomeric seal
The standard specifies various jointing methods for low-alloy steel tubes and fittings: Welded Joints