2021/05/11 (Tue) Air source pressure is the torque of closing the valve state

When selecting a single pneumatic actuator, according to the torque value calculated above and the pressure of the air source used, look for the torque at the end point in the spring return column (this torque is greater than the torque calculated above), and the accurate SR model can be obtained. For example: the air source pressure is 0.4Mpa, and a torque of 165N needs to be controlled after the above calculation. For m valves, first look up the spring return end point according to the table for a similar torque of 171N.m,

and then check to the left that the actuator model is SR160 (a total of 10 sets of springs are installed). Note: In the SR single-pneumatic output torque meter, the spring return 'end point' torque is the torque to close the valve, and the spring return 'start' torque is the torque to open the valve. The starting torque of the corresponding air source pressure is the torque of closing the valve state, and the end torque of the air source pressure is the torque of opening the valve.

AT Pneumatic Actuator Problem Handling Pneumatic valve can’t move 1. Whether the solenoid valve is normal, whether the coil is burned out, whether the solenoid valve core is stuck by the stolen goods, replace the solenoid valve, replace the coil, and clear the stolen goods 2. Check the single air supply of the actuator,

Whether PVDF valves is working normally, such as cylinder piston blow-by, cylinder block and end cover, or air leakage at the shaft, etc., disassemble the actuator to check whether the seal is damaged, and whether the cylinder bore surface is damaged. Replace the damaged seal ring, replace the cylinder or piston 3.