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电动真空蝶阀采用上装式结构，在高压、大口径条件下减少了阀体自身的连接螺栓，增强了阀门的可靠性且能克服系统自重对阀门正常工作的影响。电动真空蝶阀广泛应用于煤化工、石油化工、橡胶、造纸、制药等管道中作介质的分流合流或流向切换装置。
The electric vacuum butterfly valve adopts a top mounted structure, which reduces the connecting bolts of the valve body under the condition of high pressure and large diameter, enhances the reliability of the valve and overcomes the influence of the self weight of the system on the normal operation of the valve. The electric vacuum butterfly valve is widely used in coal chemical industry, petrochemical industry, rubber industry, papermaking industry, pharmaceutical industry and other pipelines as the medium of diversion and confluence or flow direction switching device.