s very high and theproper submergence difficult to obtain, the arrangement shownin Fig. 7 may be used where the cross-section of the well per-mits of its use. This arrangement employs a series of suc-cessive lifts and it is claimed that it works more economicallythan when the water is raised in a… … t Fig. 7.—Multiple Air Lift. Fig. 8—Air Separator. Return Air Pump.—In rising through the eduction pipe thereis a transfer of heat between the air and the water; the tempera-ture of the two being practically equal at the point of discharge.Therefore, where the air lift is being used to pump from…
Pumping machinery · Compressed air
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