Pressure regulating method of miniature air pump

Micro vacuum pump to adjust the vacuum degree, the typical approach is to add "precision pressure relief valve" in the exhaust pipe, also known as micro pressure relief valve, pressure reducing valve, micro valve, needle valve.


It is through the pressure relief to adjust the vacuum degree. The principle is shown as follows:

The two ends of the "precision pressure relief valve" are respectively connected with silica gel tubes, which are strung on the exhaust end of the pump. The vacuum degree can then be continuously adjusted by adjusting the knob on the relief valve to change the air leakage rate. Observe the vacuum level from the vacuum gauge reading. The use of "precision pressure relief valve" to adjust the negative pressure of miniature vacuum pump, vacuum degree becomes much simpler.