This European Standard specifies requirements for butterfly valves having metallic bodies for use in flanged or butt welding piping systems and used for isolating, regulating or control applications. The PN and Class ranges are: PN 2,5; PN 6; PN 10; PN 16; PN 25; PN 40; Class 150; Class 300. The DN range is: DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 600; DN 700; DN 750; DN 800; DN 900; DN 1000; DN 1200; DN 1400; DN 1600; DN 1800; DN 2000; DN 2200; DN 2400. DN 750 is used only for Class 150 and Class 300. For special application as industrial process control valves, see EN 1349 and EN 60534-2-1.
EN 593:2009+A1:2011 Referenced Document
ASME B1.1-2003 Unified Inch Screw Threads, UN and UNR Thread Form
EN 1092-1:2007 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 1: Steel flanges (Incorporates Amendment A1: 2013; Incorporating Corrigendum May 2014)
EN 1092-2:1997 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 2: Cast iron flanges
EN 1092-3:2003 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories PN designated - Part 3: Copper alloy flanges
EN 1092-4:2002 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 4: Aluminium alloy flanges
EN 1267:1999 Valves - Test of Flow Resistance Using Water as Test Fluid
EN 1418:1997 Welding Personnel - Approval Testing of Welding Operators for Fusion Welding and Resistance Weld Setters for Fully Mechanized and Automatic Welding of Metallic Materials
EN 19:2002 Industrial Valves - Marking of Metallic Valves
EN 287-1:2004 Qualification test of welders - Fusion welding - Part 1: Steels Incorporating Corrigendum August 2004; Includes Amendment A2:2006
EN 558:2008 Industrial valves - Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems - PN and Class designated valves (Incorporating corrigendum September 2010)
EN 736-1:1995 Valves - Terminology - Part 1: Definition of types of valves
EN 736-2:1997 Valves - Terminology - Part 2: Definition of Components of Valves
EN 736-3:2008 Valves - Terminology - Part 3: Definition of terms
EN 593:2009+A1:2011 history
2017EN 593:2017 Industrial valves - Metallic butterfly valves for general purposes