BS 4504-3.1:1989被替代
Circular flanges for pipes, valves and 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
發布時間：1989/6/30 0:00:00
標準類別：Standard
出版單位：British Standards Institution
標準頁數：62
標準簡介
Types of circular steel flanges from PN 2.5 to PN 40 and in sizes up to DN 4000. Facings, dimensions, tolerances, threading, bolt sizes, marking and materials for bolting and flange materials with associated pressure/temperature ratings.
標準備注
? British Standards Institution 2013
Amendment notes:
AMD 6334 published 31 January 1991
AMD 6610 published 28 September 1990
AMD 7555 published 15 June 1993
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