"Negative pressure pumps" and "positive pressure pumps" are mainly distinguished from functional and main uses. "Negative pressure pump" is mainly used for occasions with vacuum (negative pressure), such as: gas pumping, gas analysis, gas circulation, gas sampling, vacuum adsorption, indirect water absorption, etc As a dynamic pump, the gas transfer, the supercharged of the closed container, inflatable, and indirect water pressure, etc. The two are often used in medical, scientific research, environmental protection, instruments, control, etc.

The exhaust end of the "negative pressure pump" also has positive pressure, but it is only slightly positive pressure, which is much smaller than the output pressure of the "positive pressure pump". "And" inhalation pump ", and their exhaust end pressure often has only a few karma (KPA); the pumping end of the" positive pressure pump "also has a slight negative pressure in order to complete the pumping effect.

The gas supercharged pump series is a secondary supercharged pump, which can increase the extremely low pressure gas to high pressure. Driving the air pressure ≤7Bar, the pressure range of the gas input port is 0.5-10Bar, and the maximum can be increased to 90MPa. The direction of this series pump is exactly the same as the N series. The entire pump is made of aluminum alloy and stainless steel. In the pump gas drive part, this series needs to be lubricated gas to allow sealing and other internal parts to be lubricated. The driver of this series of pumps is 160mm. The input air pressure input port input port input port input port requires a certain degree of pre -pressure. The pre -increased pressure varies depending on the maximum pressure of the gas pressure pump picture. The maximum can be supercharged to 80MPa.