. Department bulletin. Agriculture; Agriculture. Bui. 1136, U. S. Dept. of Agriculture. PLATE Thermostatic Air Valves and Traps. In those illustrated the thermostatic element consists of a flexible capsule C and a volatile or nonvolatile liquid, the expansion of which shuts the valve. The capsules serve as springs to open the valves. The traps are provided with ad- justing nuts A to compensate for variations in the steam pressure in the system. ' *. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and
. Department bulletin. Agriculture; Agriculture. Bui. 1136, U. S. Dept. of Agriculture. PLATE Thermostatic Air Valves and Traps. In those illustrated the thermostatic element consists of a flexible capsule C and a volatile or nonvolatile liquid, the expansion of which shuts the valve. The capsules serve as springs to open the valves. The traps are provided with ad- justing nuts A to compensate for variations in the steam pressure in the system. ' *. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. Washington, D. C. The Dept. : Supt. of Docs. , G. P. O.
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Keywords: ., bookauth, bookcentury1900, bookdecade1920, booksubjectagriculture
