美国PARKER派克减压阀VMY160A10V1P派克PARKER比例阀 派克PARKER换向阀 派克PARKER伺服阀 派克PARKER柱塞泵 派克PARKER齿轮泵 派克PARKER溢流阀 派克PARKER电磁阀等PARKER派克液压产品

气动减压阀的工作原理：气动减压阀由执行机构和调节机构组成。执行机构是调节阀的推力部件，它按控制信号压力的大小产生相应的推力，推动调节机构动作。阀体是气动调节阀的调节部件，它直接与调节介质接触，调节该流体的流量。

公称压力：(Nominal pressure)，表示符号PN，在一定温度下应用时允许的工作压力。对碳钢阀体的控制阀，指200℃以下应用时允许的工作压力；对铸铁阀体，指120℃以下应用时允许的工作压力；对不锈钢阀体的控制阀，指250℃以下应用时允许的工作压力。当工作温度升高时，阀体的耐压会降低。

派克减压阀/PARKER气动执行器

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