How to replace the diaphragm of CNYC pneumatic diaphragm valve?

1. Insert the air supply pipe into the air inlet of the pneumatic actuator, and let in the compressed air of 6bar;

2. Remove the valve body with four sets of screws;

3. Turn off the air source and discharge the compressed air;

4. Rotate counterclockwise to remove the old diaphragm;

5. Install a new diaphragm, tighten it clockwise, and pay attention to the installation direction of the diaphragm;

6. Introduce compressed air, keep the air pressure of 6bar, and adjust the diaphragm;

7. Install the valve body and tighten four sets of screws diagonally;

8. Remove the 6bar air pressure and pull out the air supply pipe.