Small vacuum pump is also called micro vacuum pump because of its small volume. Small vacuum pump (i.e. micro vacuum pump) refers to an instrument that has one suction nozzle and one exhaust nozzle, and can continuously form vacuum or negative pressure at the inlet; micro positive pressure is formed at the exhaust nozzle; the working medium is mainly gas, and the volume is small. Small vacuum pump can be used for air conditioning, refrigeration equipment repair, suction device of medical instruments, printing machinery, vacuum packaging, vacuum plastic suction, physical and chemical experiments and small devices requiring vacuum environment. The scope of application covers scientific research, gas sampling, instruments, chemical analysis, medical and health care, medical and health care, bioengineering, automatic control, environmental protection, water treatment and many other fields.
The small vacuum pump is not suitable for pumping out the gas which corrodes the ferrous metal, reacts with the pump oil chemically, contains the particle dust, as well as the toxic gas which contains too much oxygen and is explosive. It can not be used as a transfer pump (i.e. pumping from one container to another).
The circular motion of the small vacuum pump motor makes the diaphragm inside the pump do reciprocating motion through the mechanical device, so as to compress and stretch the air in the fixed volume pump cavity to form a vacuum (negative pressure), and generate a pressure difference with the external atmospheric pressure at the pump suction port, under the effect of the pressure difference, the gas pressure (suction) into the pump cavity, and then discharge from the exhaust port.
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