Mechanical equipment of buildings; a reference book for engineers and architects (1916)
Harding, Louis Allen, Willard, Arthur C. (Arthur Cutts), 1878-1960 · New York Wiley · leaf 210
NoRWALL Siphon Steam-Aib Valve.SPECIAL GRAVITY SYSTEMS l/alt^e OoenFig. 13. In addition to the low pressure gravity systems already described there are a large numberof special steam heating systems known as vapor, vacuum and air line sjstems, also operatingwith gi-avity return of the water of…
Building · Heating · Ventilation
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
