Questions and answers on pumps and pumping machinery (1912)
Wakeman, William Henry, 1855- [from old catalog] · Chicago, The Joseph G. Branch publishing company · leaf 57
S O 46 QUESTIONS AND ANSWERS ON 176. Q. What is a horizontal vacuum powerpump? A. It is illustrated in Fig. 24. The horizontalcylinder is larger in proportion than the precedingtypes, as the pump is designed for light pressures only.It is used for removing air from various pipes, tanks,etc., used… … F\<o.ZS 177. Q. Is there a special reason for calling it a vacuum pump ? A. None, except common practice. Every pumpfor general service must create a vacuum in the suctionpipe, in order to raise water or other liquids, hence PUMPS AND PUMPING MACHINERY. 47 the term vacuum applies to all, except…
Pumping machinery
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