Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 208
in direct contact with, and heat Feed Water Heaters 195 it to the temperature of the exhaust. Lime and other solidswhich may be held in solution in the water will, whenliberated by the heat, form mostly on the under side of thepans and hence will not detract from the efficiency of theprocess, as… … Pig. 74sectional elevation of hoppes class r feed-water heater portant. In the Hoppes apparatus the water is regulatedto the heater by a float in a separate float-chamber operat-ing a double-disk balanced valve of the companys manu-facture. Branch pipes from the main feed-pipe are con-nected to the…
