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
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This Part of this standard specifies face-to-face(FTF) and centre-to-face (CTF) dimensions for Class
designated metal valves used in flanged pipesystems.
This Part of this standard covers valves having the following Class and DN values:
— Class 125, Class 150, Class 250, Class 300,
Class 600.
— 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 1 200; DN 1 400;
DN 1 600; DN 1 800; DN 2 000.
Face-to-face dimensions of automatic steam traps
are specified in EN 26554
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