There are many types of micro pumps, such as micro vacuum pumps, micro air pumps, micro gas sampling pumps, micro gas circulation pumps, micro vacuum pumps, micro suction pumps, micro inflation pumps, micro high-pressure air pumps, etc. Some of these pumps are positive pressure pumps, while others are negative pressure pumps. Do you know the differences between them?
There is a significant difference between a positive pressure pump and a negative pressure pump. For example, their gas flow directions are different, and negative pressure pumps draw in external gas into the suction nozzle; And positive pressure is sprayed out from the exhaust nozzle; For example, the level of air pressure is also different.
In fact, "negative pressure pump" and "positive pressure pump" are mainly distinguished artificially based on their functions and main purposes. Negative pressure pumps are mainly used in situations where vacuum is required, such as pumping, gas analysis, gas circulation, gas sampling, vacuum adsorption, indirect water absorption, etc; The "positive pressure pump" is mainly used for gas transfer, pressurization of closed containers, inflation, indirect water pressure, etc. that require a pump as a power source. Although there are significant differences between the two, their importance in areas such as healthcare, scientific research, environmental protection, instrumentation, and control is the same.
