Performance and Selection of Pneumatic Ball Valve
Pneumatic ball valveThe structure is a ball and two sealing seats are enclosed in the middle of the left valve body and the right valve body. When the sphere is in a closed position, the medium force at the upstream end acts on the sphere, making the sphere tightly press the sealing seat at the downstream end, and a working specific pressure occurs. When the working specific pressure is greater than the necessary sealing specific pressure, an effective seal is obtained.
In order to ensure that a medium force can occur when the ball is in a closed position, when the pneumatic valve and the pneumatic actuator are installed in advance, the pneumatic ball valve ball must be tightly attached to the sealing seat and interference is required to produce a pre-tightening ratio pressure, which is the necessary sealing ratio pressure for the 0.1 and is not less than 2Mpa. The acquisition of this pre-tightening ratio depends entirely on the geometric scale of the planning.
Pneumatic ball valve is used in the process of industry, pneumatic valve to taste the pressure shake and temperature shake, then the shortcomings of the ball valve is highlighted.
The primary feature of pneumatic ball valve is its compact structure, easy to operate and repair, suitable for water, solvents, acids and natural gas and other general operating media, and also suitable for poor operating conditions of the medium, such as oxygen, hydrogen peroxide, methane and ethylene. The ball valve body can be all or combined.
Pneumatic ball valve is mainly divided into pneumatic ball valve, pneumatic V type ball valve, pneumatic high pressure ball valve, pneumatic lining fluorine ball valve and other products. The pneumatic ball valve switch is light, small in size, can be made into a large diameter, firmly sealed, simple in structure, and convenient to repair. The pneumatic ball valve can be widely used in many environments, and can reasonably complete the flow control and regulation to prevent Risks caused by uneven flow may cause obstacles to the project.
In the sense of the role of the valve together, but also to actively understand the relevant issues of pneumatic valve, select a suitable pneumatic valve to be able to enhance the power and value of the operation, down trouble. What factors need to be considered when selecting a suitable pneumatic ball valve:
In the selection of the pneumatic ball valve, the first need to consider the use of safety features. No matter what kind of equipment, the use of safe, stable operation is often by our welcome and sought after. The valves are the same. In the selection process, the use of the valve can not affect the circulation of the material, and will not be in direct contact with water or other liquid objects, so as not to affect the sealing effect of the valve, which can not accurately complete the role of the valve.