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Performance and Selection of Pneumatic Ball Valve


Release time:

2021-08-04

The structure of the pneumatic ball valve is a ball and two sealing seats are closed in the center of the left valve body and the right valve body. When the sphere is in the 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 achieved.

Performance and Selection of Pneumatic Ball Valve

The structure of the pneumatic ball valve is a ball and two sealing seats are closed in the center of the left valve body and the right valve body. When the sphere is in the 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 achieved.
In order to ensure that a medium force can occur when the ball is in the closed position, it is necessary for the ball of the pneumatic ball valve to be tightly attached to the sealing seat when the pneumatic valve and the pneumatic actuator are installed in advance, 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 achievement of this pre-tightening ratio depends entirely on the planned geometric dimensions.
Pneumatic ball valve is used in the process of industry, pneumatic valve to withstand the pressure shake and temperature shake, when the filling type seal ball valve defects are highlighted.
Pneumatic ball valveThe primary feature 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 harsh operating conditions, such as oxygen, hydrogen peroxide, methane and ethylene. Ball valve body can be so integral, can also be so 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. Pneumatic ball valve switch light, small size, can be made into a large diameter, reliable sealing, simple structure, easy repair, pneumatic ball valve in more environments can be widely used, can be reasonably completed flow control and regulation, to prevent because of uneven flow caused by the risk, or lead to the project encountered to stop.
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 can improve the efficiency and value of operation, reduce the trouble. Select the appropriate pneumatic ball valve what factors need to consider:
In the selection of pneumatic ball valve, the first need to consider the use of safety performance. No matter what kind of equipment, the use of safe, stable operation is often welcomed by everyone and sought after. The valve is 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, to avoid affecting the sealing effect of the valve, which can not accurately complete the role of the valve.