Do pneumatic square ventilation butterfly valves and pneumatic regulating butterfly valves need lubrication for transmission machinery? 1、 Features of electro pneumatic butterfly valve
1. Simple structure, small size and light weight.
2. The fluid resistance is small, and its resistance coefficient is equal to that of pipe sections with the same length.
3. It is easy to operate and can be opened and closed quickly. It only needs to rotate 90 ° from full opening to full closing, which is convenient for remote control.
4. Tight and reliable, the sealing surface material of pneumatic butterfly valve is widely used in plastic, with good sealing performance, and has also been widely used in vacuum system.
5. It is easy to maintain, and the electro pneumatic butterfly valve is simple in structure. The sealing ring is generally movable, so it is easy to remove and replace.
6. When the valve is fully opened or closed, the sealing surfaces of the ball and valve seat are isolated from the medium. When the medium passes through, it will not cause erosion of the sealing surface of the pneumatic butterfly valve.
7. It has a wide range of applications, ranging from a few millimeters to several meters in diameter, from high vacuum to high pressure.
8. Because the power source of the electro pneumatic butterfly valve is gas, which is generally 0.2-0.8MPa, relatively safe. If the electro pneumatic butterfly valve leaks, the gas can be discharged directly compared with the hydraulic and electric butterfly valves, which will not pollute the environment and have high safety.
9. Compared with the manual and turbine rotating pneumatic butterfly valves, the electro pneumatic butterfly valves can be configured with large diameters. The manual and turbine rotating pneumatic butterfly valves are generally below the diameter of DN300, and the electro pneumatic butterfly valves can reach the diameter of DN1200. As electro pneumatic butterfly valves are widely used in petroleum, chemical industry, power generation, paper making, atomic energy, aviation, rocket and other sectors, as well as in people's daily life. Speeding up the research on electro pneumatic butterfly valves has become the work of many experts and scholars. It is believed that electro pneumatic butterfly valves will become more satisfactory products in the future.
、 The water flow direction must be the same as the arrow direction on the valve body. The valve body must be located above the drain pan of the coil to ensure that water drops into the drain pan. The valve body and driver must be installed within ± 60 ℃ in the vertical direction, and there should be at least 30mm space above them for disassembly. Enough space for maintenance and operation must be kept with the surrounding pipelines, equipment and buildings, and must be installed in a place accessible to maintenance personnel through the manhole.
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