Model 50EDQS55S is a kind of self-priming gas-liquid micro bubble generator which is installed horizontally. It uses standard click-coupled connections. The wetted components of the pump are all made of stainless steel. The suction inlet of the gas-liquid mixing pump can absorb gas through negative pressure, so there is no need to use gas compressor and atmospheric ejector. High speed rotating impeller to stir liquid and gas, no need for compressor and mixer. Pump pressure stirring, so that the gas and liquid completely dissolved, dissolved efficiency can reach 80 ~ 99%. Thus, high-pressure solutions can be obtained without large pressurized gas tanks or expensive reaction towers. Fine bubble generator can be used to attract, mix, dissolve and transfer highly dissolved liquid directly to the point of use.