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Dept. H. Arthur Harris & Co. 210-218 N. Aberdeen Street Engineers--Metal Float Manufacturers ' Floats Chicago 7, 111. Harris Floats are made in a wide range of sizes in ball, column, disk, conical, cylin drical and rectangular shapes, and can be made of virtually any workable metal for open tank or high pressure and tempera ture installations. Some of the metals used in the manufacture of Harris Floats are Copper, Brass, Aluminum, Admi ralty, Everdur, Monel, Nickel, Inconel, Stainless Steel, types 304 and 316 etc., and Steel, depending on the corrosion factors of the installation and the pres sures under which they must operate. Corrosion Resistant Floats Floats that must operate in corrosive liquids can be made of any workable metal that is resistant to the specific liquid in which they are to be used. Plated Floats Floats can be plated with copper, nickel, chrome, zinc, tinned or lead coated where called for by the installation. Harris Copper Ball Floats are made of two separate bodies, soldered together and then heavily copper plated to pro vide a seamless surface. They are usually supplied with a hexagonal female spud although other special connections can be furnished. These seamless copper ball floats are carried in stock in 3 in., 4 in., 5 in., 6 in., 7 in., 8 in., 10 in. and 12 in. diameters . . . for 25 lb, 50 lb, 100 lb and 150 lb working pressures. Special sizes to 18 in. diameter and special high pres sure copper floats are made to order. Float Connections A variety of connection styles are avail able, suitable for practically any type of attachment, including a tube through the center. Harris Float Catalog Harris Stainless Steel Ball Floats for low or high pressure and Corrosion Resist ance are carried in stock in diameters of 2% in. to 12 in. Sizes from 12 in. to 14 in. diameters are made to order. All Harris Stainless Steel Floats are joined by Atomic Hydrogen welding which produces an unusually smooth, uni formly strong and ductile weld, free from oxides or pin holes. A very complete catalog, with nju technical engineering data is available prospective float users on request, i Harris engineering staff will be glad consult with you on any float problems. 330 Heating Systems Baseboard Radiation Boiler Burner Units General Automatic Products Corporation 2300 Sinclair Lane Baltimore 13, Md. Manufacturers of a Complete Line of Gas and Oil Heating Equipment and Summer Air Conditioning FLOORLEVEL BASEBOARD HEATING "FLOORLEVEL" Hot Water BASEBOARD HEATING DUAL DE-AIRATOR TANK A complete unit with feed and relief valve, for positive elimination of air in hot water neating systems; also acts as an expansion tank. Three sizes to 1500 sq ft. SPECIFICATIONS TYPE "BAR" SERIES "L" GAS FIRED BOILER BURNER UNITS Available for natural, manufactured, mixed or LPgas. All units only 30 in. high, completely assembled. Controls avail able to meet all local code requirements. SPECIFICATIONS: A.O.A. Ratings. Model Btu Input Btu Output Sq Ft Output L-4 to L-10 72,000 to 57,600 to 384 to 960 180,000 144,000 Note: Rating at water flow rate of SfiOO Ib/hr. The above hot water ratings were based on an active length of 9 ft 9 in. with totallength of 10 ft. Each package consists of enough ma terial to do the average installation for the amount of square footage required. The packages are sized to fit any installa tion. Carton No. I contains the fin type heating element, assembled with front panel, back panel, etc., in 10-ft lengths, Carton No. 2 contains the front paneling, top moulding and fittings, and Carton No. 3 contains the panel and moulding. Elements are interchangeable, without adjustment to enclosure or other parts. "LO" is pre-wired and pre-assembled, complete with Burner, 3 controls and circulator. Available in 2 sizes: Model No. Btu Input Btu Output Sq Ft Output LO-6 LO-7 140,000 168,000 105,000 126,000 560 672 Series "T" Steel water-tube BoilerBurner unit, constructed to ASME Code. Available in following sizes and ratings: Model No. Boiler Ratings EDR Hot Water Sq Ft Steam Sq Ft T-16 to T-30 580 to 1980 320 to 1100 Also manufacturers of a complete line of summer and winter air conditioning equipment. 331