1、 Preface The valve of long-distance pipeline is a control component used by the oil and gas pipeline for gathering, distributing and regulating the transmission capacity, as well as for circulation in the station, equipment connection, tank transfer, station crossing, pig receiving and dispatching, etc; It is not only the equipment to ensure the safety of pipeline operation, but also the main process equipment for automatic control and operation scheduling of pipeline transportation.

Mine explosion-proof pneumatic butterfly valve is composed of pneumatic actuator and ventilation butterfly valve mechanism. Mechatronic structural design, with functions of internal servo operation, opening signal position feedback, position indication, manual operation, etc., has strong functions, reliable performance, and control. Realize proportional adjustment control or switch control of process fluid medium. It is designed and manufactured by using a new structural form of central line disc plate welded with short structural steel plate. Therefore, the benefits can be summarized as follows: simple structure, light weight, small operating torque, rapid opening and closing, flexible action, large flow capacity, high adjustment accuracy, etc.