This European Standard specifies dimensions, types of connections, quality of materials, marking requirements and testing requirements for hose fittings with symmetrical half couplings (Guillemin system), with mobile locking ring, for hose assemblies with a maximum working pressure of up to 10 bar1) with hose tails according to EN 14420-2 and clamp units according to EN 14420-3. Couplings in accordance with this document serve as link between hoses and connections to transport liquids, solids (e. g. powders, granules) except steam and liquid gas. The working temperature range is -20 °C up to +65 °C.
EN 14420-8:2013+A1:2016 Referenced Document
EN 10083-2:2006 Steels for quenching and tempering - Part 2: Technical delivery conditions for non alloy steels
EN 10088-1:2014 Stainless steels - Part 1: List of stainless steels
EN 10213:2007 Steel castings for pressure purposes*， 2024-04-20 Update
EN 14420-1:2013 Hose fittings with clamp units - Part 1: Requirements, types of fixing and connection, designation and testing
EN 14420-2:2013 Hose fittings with clamp units - Part 2: Hose side parts of hose tail
EN 14420-3:2013 Hose fittings with clamp units - Part 3: Clamp units, bolted or pinned
EN 14420-4:2013 Hose fittings with clamp units - Part 4: Flange connections
EN 14420-5:2013 Hose fittings with clamp units - Part 5: Threaded connections
EN 1706:2010 Aluminium and aluminium alloys - Castings - Chemical composition and mechanical properties
EN 1982:2008 Copper and copper alloys - Ingots and castings
EN 22768-1:1993 General tolerances; part 1: tolerances for linear and angular dimensions without individual tolerance indications (ISO 2768-1:1989)
EN 573-3:2013 Aluminium and aluminium alloys - Chemical composition and form of wrought products - Part 3: Chemical composition and form of products*， 2024-04-20 Update
EN 14420-8:2013+A1:2016 history
2016EN 14420-8:2013+A1:2016 Hose fittings with clamp units - Part 8: Symmetrical half coupling (Guillemin system)
2013EN 14420-8:2013 Hose fittings with clamp units - Part 8: Symmetrical half coupling (Guillemin system) (Incorporates Amendment A1: 2016)
2004EN 14420-8:2004 Hose fittings with clamp units - Part 8: Symmetrical half coupling (Guillemin system) Incorporates Amendment A1: 2007