How to adjust the air pressure adjusting device to 22 air pressure, 13 constant pressure?

1, unloading pressure regulating valve, also called air pressure regulating valve, is a pressure reducing valve installed on the cylinder head of air pump. Forming an air pressure regulating device. The specified air pressure is set by the pre-tightening degree of the air pressure regulating valve spring and the adjusting bolt. It is actually a one-way valve.

2. When the air pressure of the air reservoir rises to 8kg \ cm2, the air pressure pushes the diaphragm of the control valve to drive the mandrel to rise upwards, so that the mandrel is separated from the valve, and at the same time, the return spring lifts the valve to close the air hole which is the same as the atmosphere.

3. Then, the compressed air enters the pressure reducing valve on the cylinder head of the compressor through the mandrel, so that the valve stem of the pressure reducing valve descends, and the air inlet valve plate of the compressor is pushed away and cannot be closed. So the air compressor is the same as the atmosphere. The air compressor started idling, and no compressed air was produced.

4. When the air pressure of the air storage tank is lower than 8kg \ cm2, the spring pushes the diaphragm downward, so that the core rod contacts the valve, closing the passage between the air storage tank and the pressure relief valve, and at the same time, the core rod moves downward, pushing the valve away from the valve seat and opening the exhaust passage.

5. In this way, the compressed air in the pipeline above the pressure reducing valve is discharged through the air outlet of the air pressure regulating valve, the pressure reducing valve rod is reset under the action of the spring, and the air inlet valve begins to seal. The air compressor is working normally.