| 摘要 |
FIELD: protection of well electric centrifugal pumps against clogging with contamination. SUBSTANCE: filter for well pump has body with filtering elements and sealing member installed on body and separating intake part of filter from discharge part. Sealing member comes in the form of bell anchored on body of filter and collar put on it which sealing surface is spherical. EFFECT: provision for deviation of well pump with filter from axis of well without emergence of considerable additional loads on sealing member. 1 dwg
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