... many fields, especially in gas transportation, waste water treatment, aquaculture, pneumatic transport, vacuum packing, oxygen generation, etc. 14.Oil tank: ... 16.Mercury column detecor: we test the air capacity and pressure through it, and makes the result very precise, and ... 0.44-180m3/minOutlet Diameter: 40-350mmPressure: 9.8-98kpaDischarge Pressure:0.1-1.0kgf/cm2Motor Power: 0.55-315kw Standard ...