. Electric railway review . P/./J/VFigure 370 (S2-2).. Figure 371 (S2-4). which slide sldewise in T-slols, and the valve shown in Figure371 is held together by two heavy eyebolts. One of the best forms of blow-off connections is shown inFigure 373 (S2-6). The blow-off main is shown as being inthe engine room basement, an excellent arrangement when itcan be so placed, as it requires no trench work, is alwaysopen to inspection and may easily be repaired. The branchesto the boilers are long and provide the necessary only branch that is required is for the connection to theboiler. T
. Electric railway review . P/./J/VFigure 370 (S2-2).. Figure 371 (S2-4). which slide sldewise in T-slols, and the valve shown in Figure371 is held together by two heavy eyebolts. One of the best forms of blow-off connections is shown inFigure 373 (S2-6). The blow-off main is shown as being inthe engine room basement, an excellent arrangement when itcan be so placed, as it requires no trench work, is alwaysopen to inspection and may easily be repaired. The branchesto the boilers are long and provide the necessary only branch that is required is for the connection to theboiler. The trench can be quite narrow—just wide enoughto allow for the movement of the pipe, t-fittings should beused in the main, as they offer the least uesistance and causethe least water hammer. The valve next to the boiler shouldbe left open while the boiler is in operation, using the secondvalve as the regular operating valve. Any scale that maypass the valve plug will drop away from the seat and fallout. Duplicate valves are necessary in the blow-of
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectstreetr, bookyear1906
