BS 4504-3.1(1989) : 1989被替代
CIRCULAR FLANGES FOR PIPES, VALVES & FITTINGS (PN DESIGNATED) - STEEL, CAST IRON AND COPPER ALLOY FLANGES - SPECIFICATION FOR STEEL FLANGES
出版：British Standards Institution
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基本信息
标准编号： BS 4504-3.1(1989) : 1989
发布时间：1989/1/1 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：46
标准简介
Describes requirements for PN designated circular steel flanges in the ranges of pressure PN 2.5 to PN 40 and sizes up to DN 4000. Covers definitions, ratings, materials, bolting, repairs, flange facings, spot facing or back facing of flanges, tolerances and marking. Includes several appendices and tables.
本标准替代的旧标准
替代本标准的新标准
