. Power, heating and ventilation ... a treatise for designing and constructing engineers, architects and students. and so raises the spindle and closes the hollow float is for catching any sudden rush of water thatmay occur, and being attached to the spindle, closes the valvetemporarily until the water drains back into the radiator. 70 HEATING AND VENTILATING PLANTS Fig. 34 shows a valve in which the metal expansion piece isreplaced by one of vulcanite. The outlet for the air is throughthe center of the vulcanite plug, as indicated by the arrows. The end of the plug rests against a s
. Power, heating and ventilation ... a treatise for designing and constructing engineers, architects and students. and so raises the spindle and closes the hollow float is for catching any sudden rush of water thatmay occur, and being attached to the spindle, closes the valvetemporarily until the water drains back into the radiator. 70 HEATING AND VENTILATING PLANTS Fig. 34 shows a valve in which the metal expansion piece isreplaced by one of vulcanite. The outlet for the air is throughthe center of the vulcanite plug, as indicated by the arrows. The end of the plug rests against a spring seat which preventsinjury to the valve in case the seat is screwed down too far dur-ing adjustment. In Fig. 35 the expansion piece consists of asmall metal float partially filled with a volatile liquid. This va-porizes and exerts a certain pressure when the radiator is freefrom air and steam begins to flow through the valve. The effectof this is to bulge the ends of the float a small amount, thusraising the spindle and closing the valve. A sudden rush of water is met and cared for the same as inFig.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectventilation, bookyear
