The working principle of the pneumatic valve piston basins is analysed

piston basins pneumatic valve for pneumatic valve opening and closing is a cylindrical piece of piston design, in the pneumatic valve opens, cylindrical piston will not affected by the blind plate force of fluid, pneumatic valve operating torque will be much lower, its only conventional brake torque values of pneumatic valve or butterfly valve torque values between a third and one 5. Piston open-close part under the drive of slider-crank mechanism to do rectilinear motion, pneumatic valve flow coefficient and the relationship between the pneumatic valve opening to approximate a function ( Linear) 。 Stainless steel piston in copper alloy guide axis movement, under the guidance of the collocation of two materials that does not allow the sediment to flow to the inside between the accumulation, and further reduces the pneumatic valve operating torque.
blades circle is a pneumatic valve guide vane with allelic distribution within the flow guide parts. When the fluid flows through the pneumatic valve, fluid will be forced to tap into many small bundles of water upstream, these small water flow into the shape of vortex flow, and is directed to pipeline center, so that we can avoid the phenomenon such as cavitation of damage in the pipeline. Because of the cavitation bubble is highly stable and will be broken, broken dies not in the center of the pipeline wall surface, so you can avoid cavitation damage to the pipeline. Be truncated or blocking, flow in the water to flow through a small area by area, its velocity will increase, and the pressure will be reduced, so that to reduce the pressure of water evaporation pressure, air bubbles will evaporate.
cage type cylinder piston extends out of a perforated parts, squirrel cage slot size can be designed according to the condition of different. Water flowed in the cage, will be the throttle into many high-speed fluid, fluid flow center via the cage after injection and impact each other. Because the cavitation phenomenon is controlled in the center of the flow channel, the energy attenuation will cancel each other out or gradually through the line center, which will not result in damage to the vibration of the pipeline or cavitation. The speed of the fluid energy ( The kinetic energy) Through the piston is transformed into pressure energy after pneumatic valve, pressure energy in the straight line direction can destroy the cage of cavitation bubbles, and damage to pipeline protection fluid.