The diffuser of mine main fan is a device to use reducing velocity pressure of outlet, increase static pressure and recovery kinetic energy.

矿井主扇扩散器是用来降低出口速压以提高风机静压而回收风机出口动能的装置。

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Air filtering pressure reducing valve, solenoid valve, valve location feedback device, valve gate locator, quick exhaust valce.

空气过滤器减压阀，电磁阀，阀位反馈装置，阀门定位器，快速排气阀。

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