Shaforostov O.D. The experience of development and exploitation of on-off and control ball valves with seals made of fluoroplastic, thermal expanded graphite and metal at refineries
A very interesting information how engineers of “RAR” company solved the problem of seat tightness of manufactured ball valves. Under such conditions, it had not only to select the sealing material but also to modernize the design of ball and seats. The author tells about the problems with which RAR‘s engineers confronted and about concrete decisions, which helped to solve the raised problem.
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, dated May, 20, 2003
