Questions and answers on pumps and pumping machinery (1912)
Wakeman, William Henry, 1855- [from old catalog] · Chicago, The Joseph G. Branch publishing company · leaf 90
FIO.^7* 286. Q. How would you proceed to start acentrifugal pump, with a lift of ten feet or more, with-out a foot valve in the suction pipe? A. Shut the discharge valve, then use the deviceprovided to draw air out of the suction pipe. When PUMPS AND PUMPING MACHINERY. 79 water fills the pump,… … 288. Q. What is provided for drawing air out ofthe suction pipe? A. A hand pump, or a steam ejector. 289. Q. Why is it not practicable to draw this airout with the main pump ? A. Because the revolving parts of a centrifugalpump are not an airtight fit in the casing. 80 QUESTIONS AND ANSWERS ON
Pumping machinery
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