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 532
^ 35i 145^ i63;,6 15H 516 H 19 i6ia 20/,61718 19 leii 21^86^4 18/i. 23V,68 24^3 9I2 21/.(i 3310 H 23 5^ 11 ?i23H Note.—Sizes up to and including- 2x4 inch are made with screwed inlet and lla-iged outlet. All larger valveqhave both ends flanged. For 125 lb. steam working pressure and not over 10 lb.… … Fig. 25. Cochrane Multipoet Safety Exhaust or Back-Pressure Valve. Atmosphere Safety Exhaust Outlet Val\/e(Set toV4lb. gaugepressure)
Building · Heating · Ventilation
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.