... USED LEADING LEVEL 1. Low noise, due to the helical suction and discharge, the blower air flow in and out according ... , especially in gas transportation, waste water treatment, aquaculture, pneumatic transport, vacuum packing, oxygen generation, etc. 14.Oil tank: after milling they ... JointSafety ValvePressure GaugeCommon BaseBlower PulleyMotor PulleyV-belt CoverV-beltLubricating oil vacuum blower