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Gate Valve Selection. Four-page illustrated brochure contains special tracing templates which permit checking of valve sizes on fluid system blueprints as well as specification, dimension, and actuator configuration tables for a complete line of gate valves. Dept. IEC, Dept. SMA 550, Whittaker Controls Division, Telecomputing Corp., 915 North Citrus Ave., Los Angeles, Calif. 59 Self-Energizing Valves. Twelve-page bulletin, No. 4072, describes pipe-size valves and fittings equipped with lensring gaskets which tighten the pressure seal as internal pressure increases. Dept. IEC, American Instrument Co., Inc., 8030 Georgia Ave., Silver Spring, Md. 60 Solenoid Valves. Eight-page booklet, "How to Specify Solenoid Valves," contains sections on nomenclature, types, and mechanical, electrical, and environmental specification criteria. Dept. IEC, Valcor Engineering Corp., 365 Carnegie Ave., Kenihcorth, N. J. 61 High-Pressure Solenoid Valves. Information concerning solenoid valves of two-way, normally closed construction with operating pressure differentials up to 1250 p.s.i. is contained in bulletin. Dept. IEC, Dept. RR34, Skinner Electric Valve Division, 105 Edgewood Ave., New Britain, Conn. 62 CHEMICALS A N D MATERIALS Silicone Antifoams. Bulletin CDS204 explains how to choose the proper defoamer for both aqueous and nonaqueous systems. Recommendations on equipment and methods for use are included. Dept. IEC, Silicone Products Dept.. General Electric Co., Waterford, Ν. Y. 63 Propcllant Blending. "Blending of Aerosol Propellants" discusses five methods in current use and analyzes important aspects of each. Dept. IEC, Union Carbide Chemicals Co., 30 East 42nd St., New York 17, Ν. Υ. 64 Electronic Chemicals. Electronic phosphors and chemicals are described in new catalog. Dept. IEC, Electric Lamp Metals and Components Dept.,
Circle No. 52 on Readers' Service Card
116 A
Valve
"Valve Finder" offers ratings of production valves for the complete Hannifin line, allowing selection of the correct valve size for any air flow application. Also included are an engineering formula for use with these data and other informative material. Dept. IEC, Dept. 286, Hannifin Co., 501 South Wolf Rd., Des Plaines, III. 58
INDUSTRIAL AND ENGINEERING CHEMISTRY
General Electric Co., 21800 Rd., Cleveland 17, Ohio.
Tungsten 65
Industrial Wire Cloth. Bulletin offers technical data on selection, ordering, and quality checking of a wide variety of wire cloth products for industrial applications. Dept. IEC, Newark Wire Cloth Co., 351 Verona Ave., Newark 4, N. J. 66 Protective Coatings. Booklet gives pertinent information on performance and applications of various types of protective coatings. Dept. IEC, David E. Long Corp., 220 East 42nd St., New York 17, Ν. Υ. 67 Silicone Rubber Compounds. Bulle tin CDS-170A contains complete up-todate information on room-temperature vulcanizing silicone rubber compounds. Dept. IEC, Silicon Products Dept., General Electric Co., Waterford, Ν. Υ. 68 Styrene-Butadiene Copolymer Latex.
Dylex K-31, an improved copolymer for paints, is discussed in a new bulletin, Dylex Latices. Tech. Bull. C-9-285, Dept. IEC, Plastics Division, Koppers Co., Inc.. 801 Koppers Bldg., Pitts burgh 19, Pa. 69 Dihydropyran. Technical bulletin 137 discusses physical and chemical proper ties of dihydropyran (2,3-dihydro-4-Hpyran), a colorless liquid and very re active chemical. Dept. IEC, Chemicals Division, The Quaker Oats Co., 345-A Merchandise Mart, Chicago 54, M. 7 0 Dithio-oxamide. Bulletin describes reactions of dithio-oxamide and six of its iV,V-disubstituted derivatives. De velopment quantities of these sulfurbearing compounds are available. Dept. IEC, Product Development Dept., Mallinckrodt Chemical Works, 2nd and Mallinckrodt Sis., St. Louis 7, Mo. 71 Esters for Industry. Catalog discusses applications of esters in a variety of processing applications. Specifications, physical properties, and solubility data on principal esters are given. DeptIEC, Kessler Chemical Co., 7290 State Rd., Philadelphia, Pa. 72 Product Index. Complete list of in dustrial and specialty chemicals is avail able. Physical properties and shipping data are included. Bull. P-102, Dept. IEC, Eastman Chemical Products, Inc., Kingsport, Tenn. 73 Products List. Catalog lists properties and uses of some 375 industrial, phar maceutical, and agricultural chemicals currently produced. Dept. IEC, The Dow Chemical Co., Midland, Mich. 7 4
