Environmental protection (such as automobile exhaust testing, laboratory gas composition analysis, etc.) often need to use gas sampling analysis, the small vacuum pump, miniature pump, miniature suction pump, micro gas sampling pump, micro gas circulation pump how to distinguish it Scientific research, medical care, environmental protection and other institutions or industries, often to use small vacuum pumps, micro-pump, miniature suction pump, micro gas sampling pump, micro gas circulation pump. According to different uses, small vacuum pump can be divided into: small vacuum pump, gas sampling pump, gas circulation pump, suction pump, suction pump and many other types. Usually we can produce a negative pressure of the small volume pumps are called small vacuum pumps, but the product selection must be strictly distinguished. A real small vacuum pump, such as a small vacuum pump VAA series: And gas sampling pump, such as a micro-pump PM Series: Because of the different requirements of load capacity, resulting in small vacuum pump and gas sampling pump selected spare parts There is a big difference. Small vacuum pumps have high demands on the diaphragm and the motor. For the two main parts, the fatigue strength, reliability, life expectancy and other technical indicators are required to meet the standard conditions with the load, unlike the gas sampling pump only required under very light load standards (test proved that the load slightly Large gas sampling pump is easy to damage). Therefore, the cost of the two micropumps varies greatly. In summary, if the small vacuum pump for gas sampling, is bound to get high reliability, longer life expectancy, but the cost is high; if the gas sampling pump is used in slightly larger load situations, reliability, life Greatly reduced, and even unable to work, although it has greater advantages in cost. Selection of the best combination of their own actual situation or advice to professionals in order to take into account cost and performance. Some gas sampling pump can achieve better vacuum and flow indicators. However, it is two different things to achieve this technical indicator and to be able to work reliably for a long time under this indicator. For example, a small vacuum pump, can reach 30KPa vacuum, then when the pump suction port often at this vacuum, the pump can work reliably? Therefore, the pump can reach the target and reliable indicators of its work is not the same, please be sure to consult professionals to purchase.
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