本公司生产的系列气动活塞切断阀是属于组合仪表中的执行 单元。它接收来自调节仪表的信号，控制工艺管道内流体的切断 与接通。该系列阀具有设计新颖，流阻小、额定流量系数大、用 压差大、密封性能好等优点。因而本产品广泛应用于石油、化工、 冶金、电力、轻纺等工业部门的生产过程自动控制与远程控制系 统中。 

The series of pneumatic piston cut-off valves produced by the company belong to the execution unit in the combination instrument.The valve receives the signal from the regulating instrument and controls the cut-off and connection of the fluid in the process pipeline.This series of valves have the advantages of novel design， small flow resistance， large rated flow coeff cient， large allowable pressure difference， good sealing performance， etc.Therefore， this product is widely used in the automatic control and remotecontrol system of production process of petroleum， chemical industry， metallurgy， electric power， light textile and other industrial sectors.