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purpose of centrifugal pump casing wear ring and impeller
wear ring
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Answer Posted / gautam
there is a small clearence maintained between impeller nd the casing, so that impeller can rotate freely.Now there is a small amount of liquid leaking from discharge side to suction side causing erosion of the parts near clearence,causing this clearence to increase. so casing wear rings are provided to minimize these clearence nd take up the erosive action of leakage fluid on itself rather than letting the impeller or casing to be eroded. Now as casing wear rings are cheap they can b replaced by new one if it has worn out enough.
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Hello there, Im a Mechanical Engineer. I passed out in 2010 and have worked for 6 months in the Middle East as a Trainee Engineer. Im now in India and due to appear for an Interview for a firm in the Middle East. The post is of an Automobile Engineer. Im kinda nervous as to what to prepare for the interview. The training which I got was in different areas ranging from technical to managerial aspects. What I mean to say is that that was more of a crash training, where I couldn't stick to one section alone. The interview which Im attending is more of a technical one. What I would like to know, how and what I should be preparing? I have two weeks for the preparation. Should I go through the normal automobile aspects or everything in random. PS: I have excellent communication skills, the one area in which I'm very confident.
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