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 79
tance A (Fig. 68). In laying off this distance, theclearance, C, between the end of the stem and the wall of thesteam-chest, should be greater than the steam-port width,assuming this to be equal to the maximum displacement of thevalve from its central position. If the valve rod is missing,the stem… … Fig. 68.—Method Of Finding Lengths Of Steam-Valve Stems And Rods OfDuplex Pumps. 71. The Function Of The Valve-Stem Lost-Motion InDuplex Direct Acting Steam-Pumps (Fig. 63) is threefold:(1) It permits adjustment of the piston-stroke. (2) It causes acontinuous piston-travel. (3) It prevents the pump…
Steam power plants · Pumping machinery
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