In the field technical service, the sealed components of compressor occupy the biggish proportion in common malfunction, while the support ring as well as occupy about 30% proportion in the malfunction of sealed components. It often has the direct or indirect relations with the design, manufacture (include the manufacture of the interrelated metal parts), installation, field running conditions , operation etc. And withal the design department is the key factor of the support ring's life. Therefore, the deviser should attach relevant importance to the design of the support ring and the interrelated components.
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