Practical stationary engineering : in form of questions and answers (1909)
West, Andrew Cassius, 1855- · Boston, Mass. : A.C. West · leaf 119
e windows opened and fresh air taken from the outside. Cold-air windows must be opened wider in very cold weather,not shut up, in order to supply more air necessary to carryup more heat. The circulation is maintained in the ventilat-ing stack by fans, or in the gravity system by a small radiatorat… … Figure 21 What valves should there be on this ? There should be a shut-off valve between it and the boiler,a steam gauge beyond the reducing valve, and a relief valveto prevent over-pressure if reducing valve fails. To increase HEATERS 107 the pressure, screw down on spring or with lever…
Steam engineering · Steam-engines · Steam-boilers
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