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 520
hichshould always be on the under side of the disc when the valve is closed. The wheel of this valveis usually fastened to the spindle with a nut as shown, and moves up and down with it, makingit necessary to allow ample clearance for the entire wheel. It will be noted that the seat is re- PIPE,…
Building · Heating · Ventilation
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
