API STD 609 RUSSIAN-2009 Butterfly Valves Double-flanged Lug- and Wafer-type (Seventh Edition)《蝶阀 双法兰、凸耳和平板阀型》.pdf

1、 , Butterfly Valves: Double-flanged, Lug- and Wafer-type API 609 , 2009 : 1 2010 This Standard has been translated by the Scientific and Industrial Valve Manu-facturers Association with the permis-sion of the American Petroleum Institute (API). This translated version shall not replace nor supersede

2、 the English lan-guage version which remains the official version. API shall not be responsible for any errors, discrepancies or misinterpre-tations arising from this translation. No additional translation or reproduction may be made of the Standard without the prior written consent of API. - (API).

3、 , . API , , . API. iii , Butterfly Valves: Double-flanged, Lug- and Wafer-type Downstream Segment API 602 , 2009 API STANDARD 609 SEVENTH EDITION, OCTOBER 2009 : 1 2010 EFFECTIVE DATE: APRIL 1, 2010 - () (API) 2011-105396 API, API, . American Petroleum Institute iii (API) . , , . API , , , , , , ,

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