Document gDpZe1NXw2XNY1jbka1zxGpq3

Air System Equipment sheet Metah United States Steel Corporation Subsidiaries Carnegie-Illinois Steel Corporation, Pittsburgh and Chicago Columbia Steel Company, San Francisco Tennessee Coal, Iron & Railroad Company, Birmingham United States Steel Export Company, New York ' District Offices in all Principal Cities USS COPPER STEEL For Superior Rust Resistance at Low Cost Corrosion resistance and cost are two determining factors of the type of metal to be used for various air conditioning jobs. Copper Steel has 2 to 3 times the atmos pheric corrosion resistance of plain steel or ure iron as shown in the results of uniased tests made at Pittsburgh, Ft. Sheridan and Annapolis by the American Society for Testing Metals. The cost of U-S-S Copper Steel is less than that of pure iron or copper-bearing. pure iron and only slightly more than plain steel. Thus there often is a dividend of 200 per cent to 300 per cent longer life and a saving in the first cost as well. When galvanized, U*S*S Copper Steel produces a sheet that is rust resistant all the way through--not just on the surface. It should be used for all ducts carrying humidified air or placed in damp locations such as basements, shower rooms, etc. USS PAINTBOND U*S*S Palntbond should be used whenever galvanized steel is to be painted. This special Bonderized sheet can be painted immediately, offers a much better surface for painting, lessens danger of the paint flaking and retards corrosion. It is used for ductwork, furnace housings and outdoor metal work. Send for our Paintbond booklet. USS DUL-KOTE U*S*S Dul-Kote is a specially treated non-spangled galvanized sheet which also can be painted immediately without ageing or otherwise preparing the surface. It is available in the South and in the West. Send for our Dul-Kote booklet. Corrosion test of AS.T.M. on 2 gage black sheets exposed at Annapolis, Md., October, 1916. The copper steel sheets outlasted all others in the test. OTHER U S S PRODUCTS INCLUDE: Black Sheets--All grades, hot rolled, cold rolled ' in a number of different finishes. Stainless--Heat resisting steel for various uses where temperatures are high and corrosion severe. Cor-Ten--High Tensile steel--greater strength, greater atmospheric corrosion resistance for smokestacks, hoods, etc. For more information' on U'S'S Galvanized, Copper, Black and Stain less Sheets, send for our Guide for Sheet Metal Workers. 1018 Controls and Instruments Alco Valve Company ENGINEERED REFRIGERANT CONTROLS 851 Kingsland Ave., St. Louis, Mo. New York Office: 381 Fourth Ave. A complete line of Engineered Refrigerant Controls THERMO EXPANSION VALVES For automatic control of liquid refrigerant on all types of air conditioning and refrigeration systems. Type TK Type TJL Type THL CAPACITIES--From fractional tonnage to 100 tons Methyl Chloride, 50 tons Freon-12. MAGNETIC STOP VALVES For all types of service Magnetic Liquid Stop Valves Freon--up to 75 tons, Methyl Chloride--up to 150 tons. Magnetic Suction Stop Valves Freon--up to 1 Vi or 8.8 tons Methyl Chloride--up to 1J4" or 17 tons. Type SI Type MS Type R AMMONIA CONTROLS Magnetic Liquid Stop Valves -- up to 172 tons. Magnetic Suction Stop Valves-- up to 1 i or 28 tons. Thermo Expansion Valves-- from fractional tonnage to 60 tons. EVAPORATOR PRESSURE REGULATORS For Freon, Methyl Chloride and Am monia, with port sizes up to 2 in., and a wide variety of connection sizes. Type MS Type TCS ALCO also offers Magnetic Stop Valves for brine, water, gas, air and steam; specially designed Magnetic Compressor Discharge Valves and Magnetic Pilot Check Suction Stop Valves (for lines subject to reverse Flow). In addition, the Alco line of Engi neered Refrigerant Controls includes Float Valves, Float Switches, High'Pressure" FJoat Valves, Constant Pressure Ex pansion Valves and liquid and suction line Filters. 1019