The four-dimensional SWB series gas-liquid booster pump is a kind of reciprocating piston pump with gas  as the power source, which is converted into a low-pressure gas driving surface at the end of a large  area piston. For the high pressure liquid at the end of the small area piston, the pressurization ratio  determines the maximum output pressure of the pump. When working, when the driving piston is running  backwards, the liquid will be sucked into the pump. At this time, the one-way valve at the entrance  opens and the outlet one-way valve closes; when the piston moves forward, a certain pressure will be  formed on the liquid side, and the pressure will put the entrance. The one-way valve is closed, the  one-way valve at the outlet is opened, and the high-pressure liquid flows out from the outlet.  The SIWELL liquid pump can circulate automatically when the outlet pressure increases. The pump will  slow down and produce a certain resistance to the piston. when the force is balanced, the pump will  stop automatically, and the pressure and hydraulic pressure at the end of the high pressure piston will  be reduced. When the balance is reached, the piston remains at rest, the energy consumption is the  lowest, there is no trouble of oil temperature, and the parts stop working. When the outlet pressure  decreases or the gas drive pressure. When the force increases, the liquid pump will start operation  automatically.