Refrigeration expansion valve ‘AP204’
A mid 20th century, compact, spring compensated, adjustable, automatic expansion valve for use on “dry evaporators”, with tin coated, cast brass body, flange mounting and wrench pads, finely calibrated and rated for sulphur dioxide, methyl chloride and Freon 12 refrigerant [Incomplete Assembly] Automatic Products, Model AP204, circa 1944.
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Refrigeration expansion valve ‘C1’
An early, compact, spring compensated, adjustable, automatic expansion valve for use on “dry evaporators”, apparently manufactured for Kelvinator by the M B Company, with heavy cast brass body, flange mounted and equipped with bronze bellows, screw adjustment shaft seal, engineered for sulphur dioxide refrigerant, Kelvinator Model C1, circa 1932. One of a set of two identical valves, see Ref code 3.01-5A, ID # 172.
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Refrigeration expansion valve ‘C1’
An early, compact, spring compensated, adjustable, automatic expansion valve for use on “dry evaporators”, apparently manufactured for Kelvinator by the M B Company, with heavy cast brass body, flange mounted and equipped with bronze bellows, screw adjustment shaft seal, engineered for sulphur dioxide refrigerant, Kelvinator Model C1, circa 1932. One of a set of two identical valves, see Ref code 3.01-5B, ID # 173.
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WELCOME TO CANADA’S VIRTUAL HEATING AND COOLING TECHNOLOGY MUSEUM AND LEARNING CENTRE
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We are the virtual home to an unrivalled collection of heating and cooling inventions, devices, instruments, and technology. Delve into our collection of artefacts and discover how this incredible technology works! Explore the history and inspirational stories of technological achievement that have enriched Canada’s socio-economic well-being and our quality of life. Started as a private initiative by a group of enthusiastic volunteers, the HVACR Heritage Centre Canada is a national charitable organization dedicated to preserving and studying the history and evolution of the heating, ventilation, air conditioning and refrigeration technologies. We carry-out mandate by collecting artefacts and archival material and creating exhibits, publications, and other educational programs for the benefit of all Canadians.
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