API 682第三版和第四版差异综述和解析

摘要

API 682 speci?es requirements and gives recommendations for sealing systems for centrifugal and rotary pumps used in the petroleum, natural gas and chemical industries. This article describes the speci?c differences between 3 rd version and 4 th version in detail, Combine the actual operation experience, analyze the differences, hope to provide the reference and help for designers of mechanical seals and supply systems, make them understand the latest version of API 682 and apply it into the actual design.%API 682对应用于石油、天然气及化工行业中的离心泵和转子泵的机械密封及辅助系统提出了具体要求.详细阐述了第三版和第四版之间的具体差异, 同时结合现场的实际可操作性, 对部分方案展开具体的解析, 旨在对机械密封及辅助系统设计人员提供参考和帮助, 使其更好地理解API 682的最新版本并应用到实际的设计中.