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标题:API 600 Bolted Bonnet Steel Gate Valves
正文:
API 600 Bolted Bonnet Steel Gate Valves for Petroleum and Natural Gas IndustriesBolted Bonnet Steel Gate Valvesfor Petroleum and Natural Gas IndustriesAPI Standard 600, Eleventh EditionOctober 2001ISO 10434: 1998ANSI/API Std 600-2001IntroductionThe purpose of this International Standard is to establish, in ISO format, the basic requirements and practices for flanged and butt-welding end steel gate valves of bolted bonnet construction which parallel those given in American Petroleum Institute Standard API 600, Tenth Edition. In order to maintain compatibility with the flanges defined in ISO 7005-1 and the flanges in the American National Standard ASME B16.5, valves have been designated to be PN-marked for the former and Class-marked for the latter. It is not the purpose of this International Standard to replace ISO 6002 or any other International Standard which is not identified with petroleum refinery or natural gas industry applications. It does, however, supersede API 600, Tenth Edit
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