Application and characteristics of pneumatic V-typ
2022-10-15- Detail
Briefly describe the use and characteristics of pneumatic V-type regulating valve
use and characteristics
1. The use is a right angle rotating structure, which can be used together with the valve positioner to realize proportional adjustment; V-shaped valve core is most suitable for various regulating occasions, with large rated flow coefficient, large adjustable ratio, good sealing effect, and regulating performance n=130; Zero sensitivity, small size, can be installed vertically. Suitable for controlling gas, steam, liquid and other media
2. Features: it is a right angle rotating structure, which is composed of V-shaped valve body, pneumatic actuator, positioner and other accessories; There is an approximation, which not only depends on the inherent flow characteristics of the material innovation ratio; Adopt double bearing structure, small starting torque, excellent sensitivity and induction speed; Super shear capacity
3. The pneumatic piston actuator uses compressed air as the power source to drive the crank arm to rotate 90 degrees through the movement of the piston, so as to make the valve open and close automatically. Its components are: adjusting bolt, actuator box, crank arm, cylinder block, cylinder shaft, piston, connecting rod and cardan shaft
4. Working principle of pneumatic regulating valve: pneumatic regulating valve is composed of actuator and regulating mechanism. The actuator is the thrust component of the regulating valve, which generates the corresponding thrust according to the size of the control signal pressure to drive the regulating mechanism to reduce energy consumption. The valve body is the regulating part of the pneumatic regulating valve, which directly contacts with the regulating medium to regulate the flow of the fluid
working principle:
when the air inlet on the right side, the piston in the actuator moves to both sides to drive the rolling of the intermediate output shaft, and the stroke angle is exactly 90 degrees, making the valve fully open
when the air inlet on the left side, the piston inside the actuator moves to the middle, driving the rolling of the intermediate output shaft. The stroke angle is also 90 degrees, making the valve fully closed
simply speaking, open the vent valve on the right hole and close the vent valve on the right hole. If there is a gas source failure on the site for recycled plastic fruit and the gas is suddenly cut off, the valve will remain in its original position
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