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 234
lves. Warren Webster & Co. makes three types of thermostaticvacuum return valves; the first is of the expansion post type, the second of the float type, andthe third of the expansion chamber with volatile liquid type. The Webster therniostatic or therino valve (Fig. 50) is used principally on… … Fig. 50. Webster Thermo Valve. This valve is intended for fairly constant low pressures. It is made in J^ size only, butconnections % size may be obtained for special conditions. There are four holes each way in the seat of the valve about }/s in diameter, as shown inthe cut running both…
Building · Heating · Ventilation
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