求助真空减压阀Vacuum pressure Relief Valve? vacuum pressure relief valve range 1000 mbar and 2" size , material: brass; 压力磅级:1000 mbar ... 你好, 就是这个阀门应该选用哪种呢?客户说需要把这些问题都解决好就行,所以问一下哪种减压阀可以解决?谢谢 (这是后面说的 valve to be fixed on the 25 cubic meter tank, while inside of the pressure less then ambient then the valve should be open.) 查看更多