Machines to mix, emulsify, homogenize, clean, separate, heat and cool fluids, namely, mechanical mixing machines, emulsifying machines, aerators, deaerators, degassers, dissolving machines, extracting machines, separating machines, sorting machines, mixing machines using cavitation, homogenizers, agitators for circulating liquid media, disintegrators, gasifiers, and water aeration systems comprising water pumps, air compressors and air blowers