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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