BS 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
EN 26554 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 Valves - Terminology - Part 1: Definition of types of valves*, 2018-02-01 Update
ISO 5752:1982 Metal valves for use in flanged pipe systems; Face-to-face and centre-to-face dimensions
ISO 6554 Flanged automatic steam traps; Face-to-face dimensions
BS EN 558:2017 history
2022BS EN 558:2022 Industrial valves. Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems. PN and Class designated valves
2017BS 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
2008BS EN 558:2008+A1:2011 Industrial valves. Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems. PN and Class designated valves
2008BS 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
1996BS EN 558-2:1996 Industrial valves - Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems - Class-designated valves
1991BS EN 26554:1991 Specification for face-to-face dimensions for flanged automatic steam traps