Pneumatic ball valve specific classification are: stainless steel pneumatic ball valves, pneumatic ball valve, plastic sanitary pneumatic ball valves, carbon steel pneumatic ball valve, ball valve, two ventilation tee pneumatic ball valves, pneumatic ball valve spool.
Is the ball valve with pneumatic actuator, pneumatic ball valve pneumatic actuator execution speed is relatively fast, fast switching speed of 0.05 seconds/Z, so usually also called pneumatic quick to cut off 38 tube fitting the ball. Pneumatic ball valves are usually with various accessories, such as solenoid valve, air source treatment sanlian pieces, limit switch, locator, control box, etc., in order to realize the local control and remote centralized control, in the control room can control the switch of the valve, do not need to run to the field or high altitude and dangerous manual control, to a great extent, save the human resources and time and safety.
Only need to use pneumatic ball valve pneumatic operation for air rotating 90 degrees of operating and small rotational torque can be closed tightly. Full equality of the valve body cavity for medium resistance is very small, straight flow channel. Usually think ball Z is suitable for direct use. Ball valve itself is the main characteristics of compact structure, easy operation and maintenance, and is applicable to water, solvent, acid and gas, such as general work medium, but also is suitable for the working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene. Ball valve body can be a whole, also can be combined.
Pneumatic ball valve is made up of cock. It rotates 90 degrees with the same action, different is the cock body is ball, a circular hole or channel through its axis. Spherical and opening ratio should be such, that is when the ball rotate 90 degrees, in the inlet and outlet should be completely present spherical, thereby blocking flow. This kind of valve can be installed in any position in the pipeline.
Is the combination of pneumatic actuator with ball valve pneumatic ball valve, because of its easy operation and don't need to run to the dangerous workplaces has been widely used in many industries, pneumatic actuators running speed, fast switching speed Z is up to 0.05 seconds/times, therefore also calls the pneumatic quick to cut off the ball. Usually equipped with solenoid valves, pneumatic ball valve air heat source sanlian pieces, limit switch, locator and control box and other accessories, for local and remote central control. Pneumatic ball valve of the valve can be controlled in the control room. It saves a lot of human resources, time, and safe, because you don't have to go brass tube fitting to the site or high, also don't have to undertake dangerous manual control. Pneumatic ball valves are the main characteristics of compact structure, convenient operation and maintenance, and is suitable for water, solvents, acid, natural gas and other general work medium and oxygen, hydrogen peroxide, methane and ethylene bad working medium. The body can be a single unit or combination of pneumatic ball valve. Pneumatic ball valve selection:
1, using the medium. Dielectric properties need to consider, many chemical corrosive medium, grain feeling, easy to damage the sealing surface, how to solve the corrosion resistance of the optional pneumatic ball valve fluorine-butterfly material, do wear processing, so there will be a pneumatic rubber fluorine ball valve, etc.
2, the use of materials. Pneumatic ball valve body material can be according to the working condition of field selection, generally with nodular cast iron, stainless steel, cast steel, carbon steel, plastic, etc., according to the requirements of higher quality and health level, pneumatic ball valve material is better.
3, working pressure. Meaning is refers to the working pressure, can be divided into low pressure and atmospheric pressure, medium pressure, high pressure, belongs to common pressure 1.6 MPa, of course this also as selection of reference data.
4, the use of temperature. Pneumatic ball valve, pneumatic ball valve can be divided into high temperature, low temperature medium temperature and room temperature pneumatic ball valve pneumatic ball valve.
5, use the channel position. It can be divided into three links and instruct the pneumatic ball valve, pneumatic ball valve according to the characteristics of ball valves will be divided into the floating ball valve and the fixed ball valve and so on, in all different selection to choose according to actual working condition.