Although there is still a long way to go between China and western countries in terms of fine research, development and development of pneumatic switch butterfly valves, iron making still needs to be hard. Only by producing higher level products and improving independent research and development ability can we share a big cake in the international market. Analysis on the selection and development direction of relevant pneumatic butterfly valves Understand the function of the device from the characteristics of pneumatic butterfly valves What are the advantages of intelligent electric butterfly valves Talk about the development history of electric butterfly valves How to install economic electric ball valves? How to deal with power failure? Test of electric ball valve installation

The fluid resistance is small. The pneumatic butterfly valve with medium and large caliber has a large flow area when it is fully opened. It is quick and labor-saving to open and close. The opening and closing can be completed by rotating the disc wrench 90 degrees. Because the medium force of disc wrench on both sides of the rotating shaft is close to the same, and the torque direction is opposite, the opening and closing torque is small, and excellent sealing can be achieved under low pressure. The sealing materials of the disc valve include nitrile rubber and fluororubber, The edible rubber is lined with tetrafluoroethylene, so the sealing function is outstanding. The hard sealing butterfly valve is a soft and hard laminated metal plate, which has the advantages of hard metal sealing and elastic sealing. It has excellent sealing function no matter in low temperature.