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["Valve API641 APs64, API6,ISO15848 测试类型区别"

2018-11-23View Original

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"Das API 641 Standard legt die Anforderungen und die Zulassungsbedcheinigigungen für den Vergleichstest,针对挥发性泄漏的要求。填料应适用于-538℃(-22153℉)的温度。本标准中考虑的影响挥发性泄漏的因素包括温度、压力、热循环、机械循环和腐蚀。API 641 Standard definiert die Anforderungen und die Zulassungsbescheinigungen für den N1ppmv-Test der Niedrigsteigenden Lecksiearten für Schachtel- und Drehwiperventile mit Graphit-Füllmaterial. Bislang wurden die Prüfung nach API 642 durchgeführt. Die Füllmaterialien müssen in einem温范围-29°C 到538 °C (

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