EN 558:2017 PDF

Scope: 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 European 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; - 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 1050; DN 1200; DN 1400; DN 1600; DN 1800; DN 2000. For valves in other shell materials than metal the same FTF and CTF dimensions may be used. For relationship between DN and NPS see Annex B.

EN 558:2017 Referenced Document

API STD 594-2010 Check Valves: Flanged@ Lug@ Wafer@ and Butt-welding (Seventh Edition)
API STD 609-2016 Butterfly Valves: Double-flanged@ Lug-and Wafer-type (Eighth Edition)
DIN 3202-3:1979
DIN 3357-2:1981 Full bore steel ball valves
EN 26554:1991 Flanged Automatic Steam Traps - Face-to-Face Dimensions
EN 60534-3-2:2001 Industrial-Process Control Valves Part 3-2: Dimensions - Face-to-Face Dimensions for Rotary Control Valves Except Butterfly Valves
EN 736-1:1995 Valves - Terminology - Part 1: Definition of types of valves
ISO 5752:1982 Metal valves for use in flanged pipe systems; Face-to-face and centre-to-face dimensions

2017 EN 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
2008 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)