... 2.high efficiency 3energy saving blower machine 4high rising pressure pump 5.stable operation, long life 1. Low noise, ... 13. Widely used in many fields, especially in gas transportation, waste water treatment, aquaculture, pneumatic transport, vacuum packing, oxygen generation, etc. 14 ... ValvePressure GaugeCommon BaseBlower PulleyMotor PulleyV-belt CoverV-beltLubricating oil waste water treatment pump