Pneumatic full bore eccentric hemisphere valve It is a kind of valve commonly used in fluid control system, which realizes flow control by opening and closing the medium fluid. The valve has unique and simple structure, good control effect, and has been widely used in industrial production.
1. Working principle of pneumatic full bore eccentric hemisphere valve
The pneumatic full bore eccentric hemisphere valve controls the opening degree of the valve core by changing the position of the valve stem, thus realizing the control of fluid flow. When the valve is closed, the valve stem closes the valve core, blocking the medium flow and realizing the fluid cutoff. When the valve stem is pulled up, the valve core gradually leaves the valve seat, so that the medium fluid can flow through the valve. By controlling the rise and fall of the valve stem, the opening degree of the valve core can be accurately adjusted to achieve accurate control of the flow.
2. Advantages of pneumatic full bore eccentric hemisphere valve
① High control precision: pneumatic full bore eccentric hemisphere valve adopts automatic control mode, and the valve is driven by compressed air, which is characterized by rapid response and reliable closing. The valve can be fine tuned as required to achieve accurate flow control.
② Strong extrusion resistance: because the hemispherical valve core is designed with an eccentric structure, a double sealing structure is formed between the valve core and the valve seat, which greatly improves the extrusion resistance of the valve. Under the condition of high pressure difference, the valve can still maintain good sealing performance.
③ Convenient maintenance: the pneumatic full bore eccentric hemisphere valve has a relatively simple structure and is easy to disassemble and repair. If seals need to be replaced or other parts of the valve need to be repaired, only a small number of parts need to be removed, which reduces the difficulty and time of maintenance work.
3. Application scope of pneumatic full bore eccentric hemisphere valve
① Chemical industry: pneumatic full bore eccentric hemisphere valve is widely used in the fluid control system in the chemical industry to control the flow and pressure of various media, such as acid, alkali, salt and other corrosive media.
② Petroleum industry: in the petroleum industry, pneumatic full bore eccentric hemisphere valves are widely used for fluid control and regulation of pipelines and devices, such as oil and gas transmission pipelines and oil tanks.
③ Electric power industry: pneumatic full bore eccentric hemisphere valves are often used in high-pressure pipeline systems and thermal pipeline systems in the electric power industry to control the flow of coal powder, steam, water and other media.
Pneumatic full bore eccentric hemisphere valve plays an important role in the field of fluid control with its special structure and superior control performance. It has the advantages of high control precision, strong extrusion resistance and convenient maintenance, and is widely used in many industries such as chemical industry, petroleum, and electric power. With the improvement of industrial automation level, it is believed that pneumatic full bore eccentric hemisphere valve will be more widely used and developed in the future.
