Views: 191 Author: Site Editor Publish Time: 2021-06-26 Origin: Site
Do you have a certain understanding of pneumatic valves? Pneumatic valves are a type of fluid control equipment. Today, we will introduce to you the working principle of pneumatic actuated valves.
Pneumatic valves are valves driven by compressed air. When purchasing on-off ball valves with pneumatic actuator and valve actuator mounting kits, only the specifications, categories, and working pressures are specified to meet the purchasing requirements. It can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal, and radioactive media.
The compressed air drives the movement of multiple sets of combined pneumatic pistons in the actuator and transmits force to the beam and the inner curved track. Pneumatic valves use this feature to drive the hollow spindle to rotate. The compressed air disk is sent to each cylinder, and the air inlet and outlet positions are changed to change the rotation direction of the spindle. The cylinder combination can be adjusted according to the requirements of the load (valve) rotation torque the number drives the load (valve) to work.
Two-position five-way solenoid valves are often used in conjunction with double-acting pneumatic actuators, and the two positions are controllable in two positions: on-off. The five-way has five channels for ventilation, one of which is connected to the air source, and two are connected to the inlet and outlet of the outer air chamber of the double-acting cylinder. The other two are connected to the air inlet and outlet of the internal air chamber. The specific working principle can refer to the working principle of the double-acting pneumatic actuator.
The current market economy environment is imperfect. Because the pneumatic valve manufacturers have made different innovations under the concept of a unified design of pneumatic ball valves for product competition and formed their corporate standards and product personality. Therefore, we need to put forward more detailed technical requirements when purchasing pneumatic valves and coordinate with the manufacturers to reach a consensus. It is very necessary as an accessory to the pneumatic operated ball valve procurement contract.
This type of copper ball valve should generally be installed horizontally in the pipeline. Before installing and using the pneumatic valve, the actuated ball valve must be checked before installation and switch operation test. It can be installed and used only under normal operating conditions. When installing and debugging the on-off pneumatic valve, we need to use the manual device (manual button on the solenoid valve) to debug first, and then energize it after the operation is normal.
In mechanical operation, pneumatic valves play a vital role. When using it, not only must the technology be excellent, but also the quality must be guaranteed. This requires the necessary maintenance and maintenance of the pneumatic valve, and the automatic ball valve maintenance must be treated with a scientific attitude so that the valve maintenance work can achieve its due effect and purpose of the application. Pneumatic valves should be regularly maintained at the rotating part of the valve stem and should be refueled (oil) once every three months. We also need to regularly drain the pneumatic actuator and the air filter used in conjunction. Under normal circumstances, it is inspected once every six months and overhauled once a year.
