This part of IEC 60534 specifies face-to-face (FTF) and centre-to-face (CTF) dimensions for given nominal sizes and pressure ratings of flanged, two-way, globe-type, straight pattern and angle pattern control valves. The nominal sizes included are DN 1 5 to DN 400 for straight pattern control valves and DN 1 5 to DN 400 for angle pattern control valves.
