Steam power plant auxiliaries and accessories; (1922)
Croft, Terrell, 1880- ed, Dufflin, Daniel John, 1911- ed · New York, [etc] McGraw-Hill book company, Inc · leaf 76
67. The Steam-Valve Gears OfSimplex-Pumps are (Figs. 62 and66) variously constructed. Withall forms of such gears, however,the main valve for admitting steamto the cylinder and releasing ittherefrom, is operated by directsteam-pressure. The valve is thussaid to be steam-thrown. Rocker-Sfantf … Fig. 64.—Sectional Elevation OfOne Side Of Vertical Duplex SteamPump For Boiler Feed Service. -Phton-Rools-- Fig. 65.—End-View Of Steam-Valve-Actuat-ing-Mechanism Of Duplex Pump. Explanation.—At the beginning of the inboard stroke (Fig. 62),main steam-port E is covered by the piston, P. Enough…
Steam power plants · Pumping machinery
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