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["Selección de la presión nominal de la tubería",,"¿La presión nominal de la tubería debe ser un nivel superior que que de la presión de diseño de la tubería? ¿Qué estándar

2020-07-11View Original

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管件公称压力应该高于管道设计压力一个等级吗?什么标准规定的
Reply #22020-07-11
不需要标准呀!低了不能用?
Reply #32020-07-12
设计压力没有等级一说,公称压力包住设计压力就可以了
Reply #42020-07-13
设计压力1.4Mpa肯定是选择1.6Mpa的阀门。设计压力1.6,一般就选择2.5的
Reply #52020-07-14
要说依据是哪个标准还真不没注意。一般考虑都是为了安全起见,当然也不必设计2.0Mpa,不选择25公斤的阀门,非得用40公斤的。

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