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
標準編號： BS 4504-3.1(1989) : 1989
發(fā)布時間：1989/1/1 0:00:00
標準類別：Standard
出版單位：British Standards Institution
標準頁數(shù)：46
標準簡介
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.
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