. Power, heating and ventilation ... a treatise for designing and constructing engineers, architects and students. it allows of easy removal for repairs without disturbing theother piping. Globe and gate valves are not commonly used inmaking radiator connections but are usually employed for cir-culation coils where the stems can be placed in the proper posi-tion. In addition to the valves shown, there is a variety of specialdesigns upon the market, such as the packless, quick open-ing, and graduated or fractional valve. Hot-Water Valves.—While the valves above described areoften used on hot-wa
. Power, heating and ventilation ... a treatise for designing and constructing engineers, architects and students. it allows of easy removal for repairs without disturbing theother piping. Globe and gate valves are not commonly used inmaking radiator connections but are usually employed for cir-culation coils where the stems can be placed in the proper posi-tion. In addition to the valves shown, there is a variety of specialdesigns upon the market, such as the packless, quick open-ing, and graduated or fractional valve. Hot-Water Valves.—While the valves above described areoften used on hot-water radiators it is more convenient to employsome form of quick opening valve which requires only a quarteror half turn for the complete operation of opening or designs of this type are shown in Figs. 2% and 30. Ch^ck Valves.—When it is necessary that the flow of steamor water shall always take place in the same direction, checkvalves are employed. There are several forms of these in use, themost common for heating work being the swing check shown inFig. 31. 68 HEATING AND VENTILATING PLANTS.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectventilation, bookyear
