What is pneumatic ball valve
Application of pneumatic ball valve:
Pneumatic ball valve can be divided into O-type ball valve and V-type ball valve. O The ball valve adopts floating or fixed structure, the ball core is precision casting or forging, and the outside is plated with hard chrome. The valve seat is made of reinforced polytetrafluoroethylene material. The flow port is the same as the pipe diameter, with large circulation capacity, small flow resistance, and no leakage when closing. It is generally used for on-off valves. The V-shaped ball valve adopts a fixed structure, and the ball core has a V-shaped notch, which can realize the cutting of fiber and particulate media
1. Pneumatic ball valve is divided into carbon steel ball valve, stainless steel 304 ball valve, 316 ball valve and copper ball valve;
2. The pressure pneumatic ball valve can be divided into high pressure ball valve, low pressure ball valve and high pressure pneumatic ball valve, which are mainly used for oil, natural gas, hydraulic oil and low pressure pneumatic ball valve, which are mainly used for corrosive pipelines with water as the medium;
Advantages of pneumatic ball valve:
1. The fluid resistance is small, and its resistance coefficient is equal to the pipe section of the same length;
2. Simple structure, small volume and light weight;
3. The sealing surface material of ball valve is widely used in plastics with good sealing performance and has been widely used in vacuum system;
4. It is easy to operate and fast to switch. Only 90 ° rotation is required from full open to full close, which is convenient for remote control;
5. Convenient maintenance, simple structure of pneumatic ball valve, general activity of sealing ring, more convenient removal and replacement;
6. When the valve is fully opened or closed, the sealing surfaces of the ball and valve seat are isolated from the medium. When the medium passes through, the sealing surface of the valve will not be eroded;
7. It can be used in a wide range of applications, ranging from a few millimeters to several meters, from high vacuum to high pressure;
8. Since the power source of the pneumatic ball valve is gas, the pressure is generally 0.2-0.8MPa, which is relatively safe. If the pneumatic ball valve leaks, the gas can be directly discharged, which has no pollution to the environment and high safety;
9. Compared with manual and turbine rotary ball valves, pneumatic ball valves can be configured with large diameter. (Manual and turbine rotating ball valves are generally under DN300 caliber, and pneumatic ball valves can reach DN1200 caliber.)
