Original old building material vintage catalog H. A. THRUSH COMPANY of Peru, IN. Hot Water Heating Systems Flow Control. The complete Thrush flow Control System consists of a Thrush water Circulator a Thrush Flow control Valve, a No. 201 Thrush Radiant Heat Control thermostat, a No. 203 Thrush Modulating Boiler Control, a No. 198 Thrush Relay Transformer, a No. 12 Thrush Pressure Reducing Valve, a No. 4 Thrush Differential Pressure Relief Valve and a special air-tight Thrush Pressure Tank. Included is the Engineering and Installation Data Figuring Radiation, Outdoor Design Temperature, Typical Installations, Sizes, Wiring Diagram And Roughing in Dimensions and more. Disbound from a large 1938 construction book, these unique 12 page technical specifications sheets contain a small amount of residual glue, and pages are loose. It would make a sensational addition to your architectural engineering library. Slight chipping on rear cover.
- SKU y736
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