Heating and ventilating buildings : a manual for heating engineers and architects . Fig. 200 —Pump-governor withOutside Levers. * Heating and Ventilation, March, 1894. EXHAUST AND VACUUM STEAM-HEATING SYSTEMS. 299 port, and is connected by an internal lever to the bucket insuch a manner that when the tank is filled the valve will beopened and the pump will operate, and when the tank isempty the valve will be closed, and the pump will stop. The pump-governors are frequently set some little distance. Fig. 201.— Internal Connected Pump-governor. from the pump, but attached in every case so as to
Heating and ventilating buildings : a manual for heating engineers and architects . Fig. 200 —Pump-governor withOutside Levers. * Heating and Ventilation, March, 1894. EXHAUST AND VACUUM STEAM-HEATING SYSTEMS. 299 port, and is connected by an internal lever to the bucket insuch a manner that when the tank is filled the valve will beopened and the pump will operate, and when the tank isempty the valve will be closed, and the pump will stop. The pump-governors are frequently set some little distance. Fig. 201.— Internal Connected Pump-governor. from the pump, but attached in every case so as to producethe results described. 136. The Steam-loop.—A device which has been usedquite extensively for returning water of condensation to theboiler when the pressure has been reduced only a fewpounds is called a steam-loop, the construction and principleof operation of which, as described by Walter C. Kerr, is asfollows: The figure shows the loop returning the water, from aseparator attached to an engine-main, to a boiler above theseparator level. From the separator drain leads the pipecalled the riser, which at a suitable height empties into thehorizontal. This runs back to the drop-leg, connecting to theboiler anywhere under the water-line. The riser, horizontal,and drop-leg form the loop, and usually consist of pipes varyingin size from three quarters of an inch to two inches, and arewholly free from valves, the loop being simply an open pipe, 3°° HEATING AND VENTILATING BUILDINGS. g
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1910
