What are the components and performance of pneumatic valve actuator
date:2022-07-14 14:04
The type and structure of conditioning tissue of pneumatic actuator are roughly the same, mainly because the executive tissue is different. Therefore, the pneumatic actuator is divided into two parts: the executive organization and the regulating valve. The pneumatic actuator is composed of two parts: the executive organization and the conditioning valve (conditioning organization). According to the size of the control signal, the corresponding thrust is generated to promote the action of the regulating valve. The regulating valve is the regulating part of the pneumatic actuator. Under the action of the executive organization thrust, the regulating valve will have a certain displacement or angle, which directly regulates the flow of fluid.
1. Pneumatic equipment is mainly composed of cylinders, pistons, gear shafts, end caps, seals, screws, etc; The complete set of pneumatic equipment should also include opening indication, travel limit, solenoid valve, positioner, pneumatic components, manual organization, signal response and other components.
2. The connection dimension of pneumatic equipment and valve shall conform to the rules of ISO5211 (bottom), gb/t12222 and gb/t12223.
3. Pneumatic equipment with manual organization should be able to use its manual organization to open and close the pneumatic ball valve when the air source is interrupted. When facing the handwheel, the handwheel or handle should rotate counterclockwise to open the valve and clockwise to close the valve.
4. When the end of the piston rod is internal or external thread, there should be a wrench port suitable for the standard wrench.
5. The sealing ring of the piston shall be convenient for replacement and maintenance.
6. For pneumatic equipment with buffer tissue, the stroke length of the buffer tissue.
7. Pneumatic equipment with adjustable buffer tissue should have tissue outside the cylinder body to regulate its buffer effect.
8. The thread dimension of the inlet and outlet of the cylinder shall conform to the rules of manur norm (Annex specification) sypv, gb/t7306.1, gb/t7306.2 and gb/t7307.
