Things to Keep in Mind when Choosing Valves
参考中译:选购阀门时应牢记的事项


          

刊名：Pipeline & Gas Journal
作者：Gilbert Welsford（ValveMan）
刊号：874B0003
ISSN：0032-0188
出版年：2022
年卷期：2022, vol.249, no.9
页码：56-57
总页数：2
分类号：U17; TQ54
语种：eng
文摘：Oils processing occurs in multiple stages and requires specialized piping systems to handle different fluids. There are dedicated piping systems that transport crude oils, natural gases, liquids and semisolid materials. Service fluids will exhibit diverse physical and chemical characteristics at every stage. The design and size of pipeline components change as the fluid moves from one process to the other. Oils and their products are explosive, with traces of hazardous gases. As such, valves and other components of the piping systems must provide leak and emission-free transportation of fluids. Valves undergo stringent testing that adheres to American Petroleum Institute (API), American National Standards Institute (ANSI), International Organization for Standardization (ISO) and Manufacturer Standardization Society (MSS) standards. These tests are vital for defining the temperature and pressure limits and the leakage classes of valves. There are traces of hydrogen sulfide, carbon dioxide, chlorides and water present in crude oil. Gas traces convert into weak acids that corrode internal pipe components. Other oil applications operate at low temperatures, requiring the use of cryogenic valves.
参考中译：石油加工分多个阶段进行，需要专门的管道系统来处理不同的流体。有专门的管道系统来输送原油、天然气、液体和半固体材料。服务液在每个阶段都会表现出不同的物理和化学特性。随着流体从一个过程移动到另一个过程，管道部件的设计和尺寸也会发生变化。油及其产品是爆炸性的，带有微量的危险气体。因此，管道系统的阀门和其他部件必须提供无泄漏和无排放的流体运输。阀门经过严格的测试，符合美国石油学会(API)、美国国家标准学会(ANSI)、国际标准化组织(ISO)和制造商标准化协会(MSS)的标准。这些测试对于确定阀门的温度和压力极限以及泄漏级别至关重要。原油中含有微量的硫化氢、二氧化碳、氯化物和水。气体痕迹会转化为弱酸，从而腐蚀内部管道部件。其他石油应用在低温下运行，需要使用低温阀门。



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