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About This Item

 

Full Description

This document 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 document 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 1 500; Class 2 500;
— 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 1 000; DN 1 050; DN 1 200; DN 1 400; DN 1 600; DN 1 800; DN 2 000.

For valves in other shell materials than metal the same FTF and CTF dimensions can be used.

For relationship between DN and NPS, see Annex B.
 

Document History

  1. BS EN 558:2022

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    Industrial valves. Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems. PN and Class designated valves

    • Most Recent
  2. 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

    • Historical Version
  3. BS 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

    • Historical Version
  4. BS 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

    • Historical Version
  5. BS 05/30132093 DC


    EN 558. Industrial valves. Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems. PN and Class designated valves

    • Historical Version
  6. BS EN 558-1:1996


    Industrial valves. Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems-PN-designated valves

    • Historical Version
  7. BS 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

    • Historical Version
  8. BS EN 26554:1991


    Specification for face-to-face dimensions for flanged automatic steam traps

    • Historical Version
  9. BS 2080:1989


    Specification for face-to-face, centre-to-face, end-to-end and centre-to-end dimensions of valves

    • Historical Version
  10. BS 2080:1974


    Specification for face-to-face, centre-to-face, end-to-end and centre-to-end dimensions of flanged and butt-welding end steel valves for the petroleum, petrochemical and allied industries

    • Historical Version
  11. BS 6026:1981


    Specification for face-to-face dimensions of flanged automatic steam traps

    • Historical Version