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 15 to DN 400 for straight pattern control valves and DN 15 to DN 400 for angle pattern control valves.
EN IEC 60534-3-1-2019由CENELEC - European Committee for Electrotechnical Standardization 发布于 2019-04-01,并于 2019-05-02 实施。
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