Steam engines; a thorough and practical presentation of modern steam engine practice (1917)
Ludy, Llewellyn V., 1875-, American Technical Society · Chicago, American technical society · leaf 27
er.For instance, a packing suitable for lowsteam pressures is not efficient wherehigh steam pressures are used, and apacking that may give satisfaction withhigh pressures may not in any measuremeet the requirements imposed upon it bythe use of superheated steam. Each particular installation is,… … Fig. 12. Types of Rubber Packing STEAM ENGINES 17 the valve seats and the pressure plate 12. The valve 11 is usuallymade of cast iron and may be of many different shapes, as will beseen in the study of the various types of engines. There are, how-ever, two general types of valves—one, a plain slide…
Steam-engines
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