1. What are the characteristics and uses of pneumatic ball valves in the manual of pneumatic ball valves?
1. Purpose and characteristics of pneumatic ball valve: right angle reverse layout, which can be used together with valve positioner to achieve share adjustment; V-shaped valve core is most suitable for various adjustment occasions, with large rated flow coefficient, adjustable, large ratio, good sealing effect, flexible adjustment function, small size, and vertical installation. It is suitable for controlling gas, steam, liquid and other media.
2. Features of pneumatic ball valve: it is arranged in a right angle reverse direction and consists of V-shaped valve body, pneumatic actuator, positioner and other accessories; Its inherent flow characteristic is approximately equal to the percentage rate; Double bearing layout is adopted, with small starting torque, good flexibility and fast induction speed; Super shearing capacity.
3. The pneumatic piston actuator selects compressed air as the power source, and rotates the crank arm 90 degrees through the movement of the piston to make the valve open and close actively. Its components are: adjusting bolt, actuator box, crank, cylinder block, cylinder shaft, piston, connecting rod, cardan shaft.
4. Working principle of pneumatic ball valve: pneumatic ball valve is composed of actuator and regulating mechanism. The actuator is the thrust component of the regulating valve, which generates corresponding thrust according to the pressure of the control signal to promote the function of the regulating mechanism. The valve body is an integral part of the pneumatic ball valve, which directly contacts the regulating medium to regulate the fluid flow.
