Working principle of pneumatic actuator (electric actuator)
Use pneumatic and electric actuators on the valve, electric ball valve, electric valve, electric butterfly valve and other built-in electric actuators. How about pneumatic ball valve pneumatic butterfly valve? They are all pneumatic actuators, and we can well distinguish between all actuators used on valves, ha ha! Let's introduce the working principle of dynamic actuator (electric actuator) in detail.
Pneumatic actuator adopts piston cylinder and bending arm conversion structure, the output torque is large, small volume. Actuator adopts fully sealed waterproof design, high protection level. The cylinder body adopts imported mirror cylinder, no oil lubrication, small friction coefficient, corrosion resistance, durable and reliable. All transmission bearings adopt boundary self-lubricating bearings, no oil lubrication, to ensure that the transmission pump does not wear.
When working, the pneumatic actuator will input air from A working hole, the air pressure in the cylinder will push the piston to both sides, the output shaft rotates counterclockwise, driving the valve switch. The compressed air is input from the working hole B, and the air pressure in the cylinder pushes the piston to the center, and the output shaft rotates counterclockwise to drive the valve switch. This is how the pneumatic actuator works, and I can see that the pneumatic actuator can rotate the cylinder very quickly. Below we will introduce the pneumatic actuator in detail and the following introduction, we will elaborate from a number of perspectives.
Air operated actuator
1. Double piston rack mechanism compact, double piston connecting rod mechanism flexible and light, Angle output.
2. Cylinder material is die cast aluminum alloy (aluminum alloy is hard anodized wear resistant aluminum alloy). Long life).
3. Air source: filtration. Dry or lubricated clean air at low pressure 00.1MPa and high pressure 1MPa.
4, the special treatment of the inner surface to ensure less friction and long life.
5. The sliding device made of low friction material avoids the direct contact between metal and metal. 6. The bottom fixed hole is convenient to connect the actuator with the valve and align with the ISO5211/DIN3337 standard.
Double piston rack mechanism, pneumatic actuator is compact when working, double piston connecting rod mechanism is flexible and light, Angle output. The cylinder block material is die - cast aluminum alloy (aluminum alloy with hard anodizing wear resistance, corrosion resistance, long life). Special treatment of the inner surface of pneumatic actuator, to ensure less friction, long service life.
Air holes of pneumatic actuators meet the requirements of NAMUR standard or NAMUR standard adapter. Pneumatic actuator stroke adjustment: °, 90° position has ±4° adjustable range.
Strictly test all the ex-factory actuators of pneumatic actuators to ensure 100% qualified products. The assembly hole at the bottom of the pneumatic actuator is square, easy to connect with the valve stem and rotate 45° Angle installation.
