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 , , , , , , ,
4、, ( ) - , . API , , , . API . , ; , - , , - , , . API , . , . API - . , API, . API , , API. . , , - - (, , , ) . : API Publishing Services, 1220 L Street, NW, Washington, DC 20005. Copyright 2009 American Petroleum Institute iii , , B16.1, ASME B16.5, ASME B16.24 ASME B16.42, 125-600; MSS SP-44, 150
5、; ASME B16.47, A, 150 (MSS SP-44, ) B (API 605), 150 , NPS . , . , , , , , . API . , API. , API, - , , , - , , . , , . : , , . : , . API, , API. , , , , , /API/ : 1220 L Street, NW, Washington, DC 20005. , , . , API , , , , . , 2 , . , API : API API , : 1220 L Street, NW, Washington, DC 20005. API :
6、 1220 L Street, NW, Washington, DC 20005, standardsapi.org. iv . , API. . , . , , , , ( ). . (OSHA), , , , , 29 , 1910.1001; , , 40 , 61.140 - 61.156; (EPA) ( 763.160-179). - . -, , . , , . v 1 1 2 1 3 2 3.1 2 3.2 2 3.3 . 2 4 . 3 4.1 3 4.2 . 4 4.3 4 4.4 5 4.5 . 5 4.6 . 8 4.7 . 8 4.8 . 11 4.9 . 11 4.
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8、 . a) , (CWP), . NPS 2 NPS 48 , 125 150 ASME. ) ASME , , . , . , 150, 300, 600 NPS 3 NPS 24. 150, 300 600 NPS 3 NPS 36. 150 300 NPS 3 NPS 48. 600 NPS 3 NPS 24. 1.2 , , , , ASME MSS , 2. 2 . . , ( ). , . API 598, API 607, ASME B1 1, UN UNR ASME B16.1, 25, 125 250 ASME B16.5, NPS 1/2 24 / ASME B16.20, , ASME B16.24, 150, 300, 600, 900, 1500 2500 ASME B16.34, , 150, 300 600 ASME B16,42, 150 300 ASME B16.47,
