FIELD: engines and pumps.
SUBSTANCE: set of inventions relates to centrifugal pumps with magnetic drive. Proposed pump with magnetic drive comprises housing, protective enclosure attached to the latter, shaft fitted on closed end face of previously mentioned protective enclosure, impeller running on the shaft in housing and protective enclosure and magnetic coupling fitted on impeller and running on shaft. Proposed pump incorporates also end support bearing arranged between the said impeller and shaft and revolving relative to the latter. It includes also adjusting valve incorporating thrust ring arranged between protective enclosure and end support bearing. Orifice of thrust adjusting valve is defined subject to variable clearance between thrust washer and end support bearing.
EFFECT: adjustment of axial forces, simpler replacement of impeller and compensation rings.
22 cl, 12 dwg
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