The invention relates to the field of pumping of liquid containing chemically active substances and / or solid particles, mainly in the oil industry in the injection water in oil reservoirs and wet metallurgy when pumping pulps.; The impeller includes a hub slots and the blades with a constant height section, inserted into the hub slots. Blade impeller is fixed in the sleeve by pins with grooves, and the blade itself is made with a cross section in the form of a segment of a circle with rounded-on front and rear edges.
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