What are the Important Indicators of the Micro Vacuum Pump?

Now in the selection of micro pump, such as micro vacuum pump, micro gas pump, micro gas sampling pump, micro gas pump, micro suction pump, micro gas pump, micro gas pump, etc., for the micro vacuum pump, there are many important indicators, including the pumping speed refers to the amount of gas discharged by the pump per unit time. The greater the pumping rate, the more efficient and effective the pump is. The highest vacuum degree refers to the lowest pressure extracted as far as possible when the micro vacuum pump is working. In general, the higher the highest vacuum, the greater the vacuum, the higher the efficiency of the pump. Noise, high noise will cause discomfort to the user, while low noise will make the user more comfortable. The temperature range means that some pumps can only be used in a specific temperature range, while others are more flexible and can work at different temperatures. Power consumption refers to the electricity consumed by the pump in the operating state. Low-power pumps can save more electricity bills and contribute better to environmental protection. These three concepts are often involved. In short, these three concepts correspond to the thin, normal, and dense state of the gas.

1. Normal pressure: refers to an atmospheric pressure, namely the gas pressure produced by the atmosphere that we usually live in. One standard atmospheric pressure is 101325 Pa (Pa, Pascal-common pressure unit).100,000 Pa = 100 KPa, so use 100 KPa or 101 KPa for a standard atmosphere. Due to the different geographical location, altitude, temperature, etc., the local actual atmospheric pressure is not equal to the standard atmospheric pressure, but for the purpose of simplification, sometimes we can think that normal pressure is a standard atmospheric pressure, namely 100 KPa; negative pressure: refers to the gas state of lower atmospheric pressure than atmospheric pressure, which is often called vacuum. For example, when drinking a drink with a tube, the negative pressure is in the tube; the inside of the suction cup is also the negative pressure. Positive pressure: a gas state higher than atmospheric pressure. For example, when pumping a bicycle or car tire, the outlet end of a pump or air pump produces positive pressure. Scientific research, biological engineering, automatic control, environmental protection, water treatment and many other applications, often gas sampling, gas circulation, object adsorption, etc., this time to use a vacuum pump. Its main parameters are vacuum degree, flow rate and so on.

2. Vacuum degree generally refers to the limit pressure that can be reached when the pump works, that is, it can pump out the gas in the closed container, leaving the thinning degree of the gas.

A. In industry, there are two kinds of extreme pressure, one is absolute pressure, that is, absolute vacuum (absolute vacuum, no matter) is zero, the value is positive, the smaller the number, the closer to the absolute vacuum, that is, the higher the vacuum. For example, a high-vacuum micro-vacuum pump, VCH1028). Its limit pressure is 10KPa(0.01MPa), in the micro vacuum pump, it is a very high vacuum degree.

B. The other is the relative pressure, that is, the pressure as zero, below the pressure with negative value, so it is called negative pressure. The greater the absolute value of this negative value, the higher the vacuum degree. For example, a high negative pressure micro vacuum pump PH2506B has a negative pressure of-75KPa(-0.075MPa), which is not as high as VCH1028 (VCH is-90KPa(-0.09Mpa)). Therefore, the corresponding suction force of PH2506B is not as strong as VCH. International vacuum industry is common, is the most scientific is with absolute pressure marking; but because the method of measuring relative pressure is simple, measuring instruments are common (such as the general vacuum table is relative pressure gauge), so the domestic habit of using relative pressure to mark. Relationship: relative pressure = absolute pressure-local atmospheric pressure. Such as absolute pressure: 10 Kpa, its relative pressure = 10-100=-90Kpa(-0.09MPa).

In scientific research, laboratory, medical and other fields, there are often applications of gas pressurization, such as: to the container with positive pressure itself, or the system resistance is large, the pump needs to overcome the resistance of gas supply. At this point, the pump needs to output a positive pressure higher than atmospheric pressure, usually expressed as a relative pressure. Our high pressure micro air pump, micro vacuum pump PCF5015N can output> 100Kpa(0.1MPa) positive pressure, itself belongs to the dry vacuum pump, do not need vacuum pump oil and lubricating oil, do not pollute the working medium, can run for 24 hours, exhaust end can be blocked, it is especially suitable for these occasions

The above is our VSD motor to share with you about the important parameters of the micro pump. For more information, please contact our professional customer service personnel to answer. Thank you for clicking and watching.