Questions and answers on pumps and pumping machinery (1912)
Wakeman, William Henry, 1855- [from old catalog] · Chicago, The Joseph G. Branch publishing company · leaf 132
n about the same proportion as on other pumps? A. No; the pump end wears and corrodes fasterthan the steam end, therefore the piston rod is madein two parts; consequently the part that comes in con-tact with ammonia can be renewed without disturbingthe other. 426. Q. State another purpose for which… … FIG. 7 7 427. Q. How is such a pump connected and used? A. The returns from the heating system to beoperated are all connected into the suction opening.When the pump is started, a partial vacuum is createdin the return pipe, and all water resulting from thecondensation of steam is withdrawn.9 122…
Pumping machinery
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