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 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
2005-04-00
Tiêu chuẩn tương đương
DIN EN 12982 (2005-05), IDT * E29-301PR, IDT * OENORM EN 12982 (2005-06-01), 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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