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| Books | Books |
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| Books | Books |
 Tube valves are ordinarily better adapted to underwater discharge or for use inside a conduit, since an insufficient air supply does not appear to produce all the cavitational effects inherent in other valves.  Reclamation Manual: Design and construction, pt. 2. Engineering design ... - Page 1-2 by United States. Bureau of Reclamation - 1950 Full view -
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