Big size valve is commonly used to drive the valve, usually called this type of drive device drive device for the valve electric device, the characteristics of the valve electric device are as follows: open and close quickly, can greatly reduce the time needed to open and close the valve;Can greatly reduce the labor intensity of operators, especially for high pressure, big size valves;Suitable for installation in a position that cannot be operated manually or is difficult to access, easy to achieve remote control, and installation height to be unrestricted;Conducive to the automation of the whole system;Power is easier to obtain than air and liquid sources, and its wiring is much simpler to lay and maintain than compressed air and hydraulic lines.

Industry in the future will be the quality valve products and product competition between brands, products to high technology, high parameter, strong corrosion resistance, high life direction, it is only through constant technical innovation, develop new products, technical renovation, to gradually improve the level of product technology, meet the domestic equipments, comprehensive localization of the valve.China's valve manufacturing industry in the huge demand environment, will show a better development prospect.In the production process, once the gas pressure is too low, the burner can not work normally, should immediately cut off the gas and stop the fan.

Big size valve is in the fluid system, used to control the direction of the fluid, pressure, flow device.The valve is the device that causes the medium (liquid, gas, powder) in the piping and equipment to flow or stop and can control its flow rate.Valves can be used to control the flow of various types of fluids such as air, water, steam, corrosive media, mud, oil, liquid metal and radioactive media.The valve is the control part in the pipeline fluid conveying system, which is used to change the channel section and medium flow direction, with the functions of diversion, cut-off, throttle, check, shunt or overflow pressure relief.

Butterfly valve and butterfly rod itself has no self-locking ability, for the positioning of butterfly plate, to install a worm gear reducer on the valve stem.The worm gear reducer can not only make the butterfly plate have self-locking ability, make the butterfly plate stop in any position, but also improve the operating performance of the valve.The characteristics of industrial butterfly valve can withstand high temperature, applicable pressure range is also higher, the valve nominal size is large, the body is made of carbon steel, valve plate seal ring using metal ring instead of rubber ring.The large-scale high temperature butterfly valve is made of welded steel plate, which is mainly used for smoke duct and gas pipe of high temperature medium.The electric regulating butterfly valve belongs to the electric valve and the electric regulating valve a variety.