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压力伺服阀[0]

Posted on 2023年11月14日 by

常规的伺服阀都是流量伺服阀,而对于压力控制,一般采用正开口负遮盖的流量阀或者直接采用压力伺服阀。

采用压力伺服阀可以直接采用开环的方式进行控制,而采用流量伺服阀,则需要采用压力闭环的方式进行控制。

目前市面上的压力伺服阀较少,而且伺服阀的流量也较小。以下以704所的压力伺服阀为例进行说明。

所谓压力伺服阀主要是指输入的电信号和伺服阀输出的压力成线性关系,而流量伺服阀是指输入的电信号和伺服阀输出的流量成线性关系。

21MPa下的最高频响80-100Hz,价格约1W,货期3个月。

另外selec 也有压力阀

升压速率210bar/0.009s=2.3*10^9pa/s=2.3Gpa/s

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