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液压单向阀DIF-L32H螺纹M42*2流量阀
特点:在真空、负压、零压时能正常工作,但通径一般不超过25mm。 分步直动式电磁阀原理:它是一种直动和先导式相结合的原理,当入口与出口没有压差时,通电后,电磁力直接把先导小阀和主阀关闭件依次向上提起,阀门打开。当入口与出口达到启动压差时 ...
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