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 592
i 18/,, 20 H 21Wl8 23 5^ 23^ Note.—Sizes up to and including 2x4 inch are made with screwed inlet and flanged outlet.have both ends flanged. For 125 lb. steam working pressure and not over 10 lb. reduced pressxire. All larger valves … Fig. 2.5. CocHRAN-E Mt-ltifort Safety Exh.\ust or Back-Pressure Valve.
Building · Heating · Ventilation
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
