How do angle vacuum valves work?

  The working principle of the vacuum flapper valve is that the valve plate is sealed by the up and down movement of the valve poppet. The transmission components that drive the valve poppet to move have three modes: manual, and pneumatic. Manual transmission parts, mainly threaded structures, can also use a flat cam structure.

  The pneumatic transmission components are powered by compressed dry air, change the direction of the air path through the electromagnetic reversing valve, push the cylinder piston to move up and down, drive the valve stem to move up and down, open and close the valve plate, so as to achieve the purpose of connecting or stopping the airflow.