The gas sea company is specializing in the production of high-end micro-vacuum pumps, micro-gas pumps, micro-pumps, products are widely used in industrial analytical instruments.
Shandong, Jiangsu and other places have ion chromatograph, liquid chromatograph manufacturers have been cooperating with us for many years, ordering our micro vacuum pumps for chromatograph degassing device.
The most widely used model in the degassing device of liquid chromatograph and ion chromatograph is VBH2005 (relative vacuum -0.08MPa), the volume is about the size of a pack of cigarettes. There are also customers who choose VCH1028, (relative vacuum -0.09MPa), this pump is larger and noisier. According to your circuit, if you choose VBH2005, you may need to choose "low interference type" specifications. "Ordinary type" will have voltage flux through the pump positive and negative power lines into the circuit, thus contaminating the power supply, interference with the use of the same power supply of other control circuits, such as microcontrollers, liquid crystal displays.
High reliability is the biggest advantage of our products. For the two miniature vacuum pumps mentioned above, the pumps can run continuously around the clock for several months without breaking down when the pumping port is completely blocked (i.e.: full-load vacuuming), and the reliability parameters are shown in the table below. The following table shows the reliability parameters. This is a test made under the worst working conditions. Normally, the pump is operated intermittently every day, in which case the "trouble-free operation time" will be very long and much larger than the values in the table below.
Model No. Average Trouble-Free Continuous Running Time (Full Load) Remarks
VBH2005-24V >2000 hours 24V should be preferred
VBH2005-24V
(Long Life) >5000 hours
VBH2005-12V >1500 hours
VBH2005-12V >1500 hours
VBH2005-12V >1500 hours
VBH2005-12V >1500 hours
VCH1028-24V ＞2000 hours
All of these products are maintenance-free; the pump is oil-free and does not discharge gas containing oil mist, and does not need to be refueled for maintenance; it is permissible to pump humid gases, but the gases must be clean and dust-free, and filters are required, or else the accumulation of dust in the pump will result in the degradation of the vacuum level.
It is because our products have the above advantages, so it is also widely used in medical equipment, military supplies, VBH2005 is about 480 ~ 550 yuan / unit, if you choose "low interference type" or "long life type" will be more expensive! VBH2005 is about 480-550 RMB/unit, and if you choose "low interference type" or "long life type", it will be more expensive by 100-200 RMB/unit.
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