Radford's cyclopedia of construction; carpentry, building and architecture. Based on the practical experience of a large staff of experts in actual constrcution work (1909)
Johnson, Alfred Sidney, 1860-, Radford, William A., 1865- · Chicago Radford Architectural Co · leaf 160
rainage Valve Used in Gorton System ofVacuum Steam Heating. Fig. 103. This valve is operated by the differ-ence in pressure between that of the steam andof the return pipes, remaining closed until theaccumulation of air in the return mains increasesthe pressure, when it will open sufficiently… … Fig. 103. Automatic Eeltef Valve Used in Gorton System ofVacuum Steam Heating. Main, t/team
Architecture · Building
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
