Eductor Pump
Eductor Pump : (Tech) A pumping device designed for high flow with low pressure drop for liquids, suspensions, or gases. An eductor has no moving parts, and pumping is produced by entraining the fluid in a high-velocity stream, which can be a jet of water, air, steam, or other fluid. See also: Pump. Note: In fire practice an eductor in a hose line proportions liquid foam or wetting agents into the water stream. An eductor designed for high pressure drop or vacuum operation is called an aspirator or ejector
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