Questions and answers on pumps and pumping machinery (1912)
Wakeman, William Henry, 1855- [from old catalog] · Chicago, The Joseph G. Branch publishing company · leaf 106
boxes, it must be of the double-acting type. All valves are thus renderedaccessible. 346. Q. Is it necessary to run such pumps at alow speed? A. This is not generally wanted, because the PUMPS AND PUMPING MACHINERY. 95 required quantity of oil may be pumped and the pumpis then shut down. When… … FIG. 57 96 QUESTIONS AND ANSWERS ON
Pumping machinery
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