Industrial valves. Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems. PN and Class designated valves
Industrial valves. Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems. PN and Class designated valves
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What is BS EN 558 - PN and Class designated metal valves about?
BS EN 558 is a European standard on industrial valves that focuses on the dimensions of metal valves that helps in controlling the flow of gas or liquid through piping systems. BS EN 558 specifies the “face-to-face” (FTF) and “centre-to-face” (CTF) dimensions for PN and Class designated metal valves used in flanged pipe systems. NOTE: BS EN 558 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
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