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 109
Fig. 106.—Leather Cup For PackingA Deep-Well Pump Plunger. Fig. 107. WaterPassage -Plunger-Valve For Deep-Well Pump. pression strain on the down stroke. Guide-couplings should be usedabout every twenty feet. Two-stroke pumps have a solid steel or ironrod (Fig. 109) driving the lower plunger (Fig.… … Fig. 108.—Steel Guide Coupling For Well-Rods Of Deep-Well Pumps. inside of a hollow tube or pipe which drives the upper plunger (Fig. 111).Both rods must be guided and packed. In open-well pump installations,the plunger rods are guided (Fig. 99) with grooved rollers. • ■ -Threaded…
Steam power plants · Pumping machinery
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