The pneumatic ball valve is a ball valve equipped with a pneumatic actuator. Pneumatic actuators perform relatively fast, with the fastest switching speed of 0.05 seconds per second, so they are usually also called pneumatic fast plugging ball valves. Pneumatic ball valves are usually equipped with various accessories, such as solenoid valves, air source handling triples, limit switches, positioners, control boxes, etc., to complete in-situ control and remote centralized control, in the control room to be able to control the valve switch, do not need to run to the scene or high altitude and dangerous areas to operate manually, in a large range. It saves human resources, time and safety.
Pneumatic ball valves can be closed tightly by operating at 90 degrees with a pneumatic actuator and with very little torque. Perfectly equal valve body cavity provides a very small and direct flow passage for the medium. It is generally believed that ball valves are most suitable for direct opening and closing. The main feature of the sanitary ball valve is its compact structure, easy operation, and maintenance, suitable for water, solvent, acid and natural gas and other general working media, but also suitable for working conditions of poor media, such as oxygen, hydrogen peroxide, methane, and ethylene. The ball valve body can be integral or modular.
The pneumatic ball valve has the O-type ball valve and V-type ball valve.
O-type ball valve adopts the floating structure, ball core is fine castings, hard chromium plating on the surface, the seat is reinforced PTFE material, port and pipe caliber is the same, flow capacity is great, flow resistance is minimal, no leakage when closed, usually used as on-off valve, especially for high viscosity.
V-type ball valve adopts fixed structure, V-type notch is opened on the ball core, can complete shearing fiber, granular media according to different technology and equipment can choose pneumatic or electric performance mechanism, separately composed of pneumatic ball valve and electric ball valve, pneumatic ball valve in order to complete the share adjustment must be equipped with valve positioner, electric ball valve if necessary To fulfill the quota adjustment, electronic actuator or servo amplifier should be selected.
Pneumatic ball valve is widely used in natural gas, oil products, chemical industry, metallurgy, paper making, electric power, mining, printing and dyeing, biological pharmaceuticals, daily chemical industry, food and beverage, water treatment and air treatment and other professional fluid control or conditioning control, matching with automatic pneumatic instruments from the raw materials.
The pneumatic ball valve can be divided into carbon steel ball valve, stainless steel ball valve, 304, 316 ball valve, and copper ball valve pressure, also can be divided into high-pressure ball valve and low-pressure ball valve.
High-pressure pneumatic ball valve: mainly used in oil, natural gas, hydraulic oil, construction machinery, and other occupations.
Low-pressure pneumatic ball valve: the main application in the corrosive medium such as water on the pipeline!