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What are the requirements of vacuum valve design principles?
The author: Time:2020/7/8

真空阀门设计原则一般应有以下几点:
 ①阀门的密封性能要好,不但阀板封闭处漏气速率要小,而且阀体的漏气速率要小;
 ②阀门密封部件耐磨性要好,特别是阀座与阀板密封部件要能反复使用,寿命长;
 ③阀门的通导能力要大;
 ④阀门材料应具有低饱和蒸汽压、高耐蚀能力和高化学稳定性;
 ⑤超高真空阀门应耐烘烤,烘烤温度一般不低于150℃,不高于高450℃;
 ⑥阀门结构要简单,造型美观大方,开关轻便、灵活,开关状态应有标识,大型阀门应有起吊装置, 操作方便,维修容易;
 ⑦阀门零部件加工工艺性要好,表面处理工艺,阀门连接法兰应符合真空法兰标准要求。

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