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)
This European Standard specifies the face-to-face (FTF) and centre-to-face (CTF) dimensions for PN and Class designated metal valves used in flanged pipe systems.This standard covers valves with the following PN, Class and DN values: PN 2,5; PN 6; PN 10; PN 16; PN 25; PN 40; PN 63; PN 100; PN 160; PN 250; PN 320; PN 400; PN 500 Class 125; Class 150; Class 250; Class 300; Class 600; Class 900; Class 1500; Class 2500. DN 10; DN 15; 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. The face-to-face dimensions of flanged automatic steam traps are specified in EN 26554. For valves in other shell materials than metal the same FTF and CTF dimensions may be used.
EN 558:2008 history
2017EN 558:2017 Industrial valves - Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems - PN and Class designated valves
2008EN 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)