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 230
he Illinois blast-coil trap or valve (Fig. 42) operates in a similar manner to the radiatorvalve just described—except that no by-pass or strainer is provided, and the pipe connectionsare % or larger. Dunham Radiator Return Traps. The C. A. Dunham Co. makes a thermostatic trap or valvefor use on… … Fig. 41. Illinois Float Radiator Trap. a flat metal disc, which closes against a raised seat, is secured directly to the expansion bellows(Fig. 44). These smaller sizes are constructed of phosphor-bronze and made in four patterns—right hand, left hand, straight way, and angle.
Building · Heating · Ventilation
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