This European Standard specifies the end-to-end and centre-to-end dimensions for steel butt-welding end valves with connecting dimensions of welding ends in compliance with EN 12627, used in PN and Class designated piping systems. The range of PN is: PN 10; PN 16; PN 25; PN 40; PN 63; PN 100; PN 160; PN 250; PN 320; PN 400; PN 500. The range of Class is: Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500. The range of nominal size is: DN 8; 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 1000; DN 1200. NOTE 1 DN 750 is not applicable to PN designated valves. NOTE 2 See Annex B (informative) for the relationship between nominal size (DN) and nominal pipe size (NPS). NOTE 3 Valves having welding end profiles different from those specified in EN 12627, may use the same dimensions specified in Table 1.
Số hiệu tiêu chuẩn
prEN 12982
Tên tiêu chuẩn
Industrial valves - End-to-end and centre-to-end dimensions for butt welding end valves
Ngày phát hành
2007-08-00
Tiêu chuẩn tương đương
DIN EN 12982 (2008-01), IDT * OENORM EN 12982 (2007-10-01), IDT
Từ khóa
Anti-siphonage systems * Ball valves * Butterfly valves * Check valves * Conical cocks * Control valves * Definitions * Designations * Dimensions * Flanges * Industrial fittings * Industries * Limit deviations * Materials * Nominal widths * Overall lengths * Pipe fittings * Pipelines * Slide valves * Tolerances (measurement) * Valves * Valves and fittings for pipelines * Welding ends * Flaps
prEN 12982
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