*原装德国BURKERT电磁阀6223型：伺服辅助式两位两通大流量比例电磁阀，内孔10.0 - 20.0 mm
德国宝德直动式摇臂电磁阀是通过调节，进口压力减至某一需要的出口压力，并依靠介质本身的能量，使出口压力自动保持稳定的阀门。从流体力学的观点看，减压阀是一个局部阻力可以变化的节流元件，即通过改变节流面积，使流速及流体的动能改变，造成不同的压力损失，从而达到减压的目的。

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*原装德国BURKERT电磁阀6223型    宝德比例阀       宝德电磁阀型号