Company News
- Guide for Selecting Micro Vacuum Pump and Micro Air Pump
See the type selection list for general situation before type selection, and details are listed as follows.
After years of hard work, our current main stream products are of many series and specifications, applied to each field. It becomes difficult to select the most appropriate product with so many options?
First, learn those micro pumps’ generality. Our products are complex pump. They integrated the function of vacuum pump and water pump. And some people call them vacuum water pump. Thus, when there is no water it will pump vacuum,and when there is water, it will pump water.
1.Micro pump is required to pump air or vacuum, and sometimes there will be liquid water entering into the pump chamber.
2.Micro pump is required to pump both air and water. The advantage of our products is they will pump vacuum when they didn’t contact water, and pump the water forcibly with vacuum, and then begin to pump water.
3.No matter it pumps air or water, it is i normal operating status. It will not be damaged in “dry operation”.
4.All pumps allow to start with heavy load, even being closed belongs to the normal work.
Next according to some special issues relevant to the selection.
1.Micro pump is used to export compressed air. Simply speaking this is the case where micro pump is only used to pump up and available by output pressure from high to low: D series and S series. Of course relevant technical parameters such as flow index should be considered.
2.The electromagnetic interference of the micro pump. If the micro pump is controlled by precise circuit, micro pump with brushless motor is preferred.
3.Speed regulating performance, feedback signal, and self-protection. These functions shall be selected according to the specific needs. These fuctions are recommended for high-end applications or fields where high stability is required.
4.Start with load. If there is a vacuum i the pump hole or a pressure in the exhaust hole of the micro pump before starting, another parameter shall be considered: inlet maximum starting load and exhaust hole maximum starting load. The typical application is to maintain vacuum or positive pressure in the vessel with the micro air pump, and when the vacuum or positive pressure in the vessel is lower than the set value, the pump needs to be powered on , and when the vacuum or positive pressure in the vessel is higher than the set value, the pump needs to be powered off. This performance has a high requirement to the technical level of the manufacturer. If this performance is required, it is recommended, it is recommended to contact the manufacturer for necessary technical support.
After above learning, The specific model may be decided according to the requirements of flow rate and vacuum degree from the series which can be selected. It is advised that redundancy shall be given to the parameters, especially that concerning the flow. After the pump is connected to that air path, the flow rate of the pump will be less than the nominal flow rate of the pump due to the pressure loss of the pipeline and valve which will weaken the flow.
Modle Motortype Voltage (V) Flow (l /min) Max vacuum Max pressure
S series (single head)
SL3BLDC
Brushless
6/ 12/ 24 DC
3
-50
100
SL6BLDC
Brushless
6/ 12/ 24 DC
6
-60
140
SL4DC
Brush
6/ 12/ 24 DC
4
-50
100
SL5LC
Brush
6/ 12/ 24 DC
5
-60
120
SSL3DC
Brush
6/ 9/ 12 DC
2.5
-70
100
D series (double head)
DL7BLDC
Brushless
6/ 12/ 24 DC
7
-60
120
DL11BLDC
Brushless
6/ 12/ 24 DC
11
-70
160
DP8DC
Brush
6/ 12/ 24 DC
8
-60
120
DP9LC
Brush
6/ 12/ 24 DC
9
-65
130
DP20DC
Brush
12/ 24 DC
20
-90
200