Document NGjg8Q0eMOkqRmk3Rd6aroNJR

Air System Equipment Air Filters and Cleaners Westinghouse Electric & Manufacturing Go. Edgewater Park Precipitron Department Cleveland, Ohio THE PRECIPITRON* First Commercially Practical Electrostatic Air Cleaner The Westinghouse PR.ECIPITRON is the first commercially practical electrostatic* method of removing dirt, dust and other air-borne impurities in ventilating and air conditioning systems. The PRECIPITRON--being more efficient than mechanical filters --removes microscopic foreign matter as small as 1/250,000 of an inch in diameter-- even freeing the air of tobacco smoke. *Trade-mark Registered in U.S.A. (/) cells; () Power Pack. The PRECIPITRON provides a com plete answer to mass air cleaning jobs in all Commercial, Industrial, and Public Build ings using forced ventilation or air con ditioning duct systems. Applications--Used in industry and production work. PRECIPITRON is serving many manufacturing processes in blackout, air-conditioned plants. Removal of smoke and welding fumes makes possi ble a considerable reduction in fresh air re quirements with consequent savings in cooling and heating costs. In steel mills and power plants PRE CIPITRON is cleaning the ventilating air for rotating electrical machinery. Precision tools, dies and gauges are stored in spaces supplied with PRECIPITRON cleaned air to protect them from abrasive and corrosive dust or dirt. Optical instru ments such as bomb sights, binoculars and telescopes are being assembled and main tained to a higher degree of precision with electrostatically cleaned air. PRECIPI TRON cleaned air is being supplied to paint spray booths, air cooled radio trans mitters, food and drug processing and packaging areas and for the processing and molding of plastic materials. Other fields in which the PRECIPITRON is a proved component of the ventilating or air con ditioning system are textile mills, tele phone exchanges, hospital operating rooms and commercial and public buildings. Sizes--The PRECIPITRON is avail able, complete for installation, to accommo date from 300 cfm (for a single 18 in. cell) to any desired .volume through multiple cell arrangements. 'Cells come in two sizes--18 in. x8)4 in. x23% in. and 36 in. x in. x 23^6 *n- For a 90 per cent efficiency, the 18 in. and 36 in. cells .'are rated at 300 and 600 cfm respectively. For 85 per cent efficiency, ratings are 375 and 750 cfm. Two sizes of Power Packs: Type S for installation up to 12 36-in. cells and Type L for 12 to 50 36-in. cells. Advantages--More efficient than me chanical filters. Safe. Easilyinstalled. Non clogging, and non-varying resistance. Easily cleaned. Passed by Underwriters' Labora tories on standard flame tests for fire haz ard on duct installation. Once each month accumulated dirt is washed away. Information--Westinghouse will gladly provide complete information about the PRECIPITRON. Address your requests to Section G, Precipitron De partment, Westinghouse Electric & Manu facturing Company, Edgewater Park. Cleveland, Ohio. 932 Air System Equipment Cleaning Materials Oakite Products, Inc. General Offices: 36 E. Thames'St., New York,. N. Y. OAKITE MATERIALS . . . METHODS . . . SERVICE CLEANING Established 1909 Representatives In all Principal Cities of the United States and Canada Specialized OAKITE Materials for: Slime Control in De-Scaling Re-circulating Systems. Condensers, Compressors, Cleaning Air Filters, Jacket Water Coolers, Lube Oil Coolers, Diesel and Gas Engine Heat Exchange Equipment. Cooling Systems. Controlling Slime Growths Control of bacteria and slime growths in re-circulating water supplies is in expensively established with Oakite Airefiner. A dry, non-volatile, white powder, completely soluble, it prevents formation of slime accumulations and their unpleasant odors. Economical to use . . . one lb to each 300 gallons of water usually recom mended. Prevents Equipment Corrosion Oakite Airefiner prevents b SACTEBU aXTOU I* corrosion of eliminators, air washing chambers, spray heads, etc., because it main tains water at a point suf ficiently alkaline to count eract the tendency of the water to become acidified. In addition, it gives wash waters greater wetting-out action, thus making dirt removal more complete. Water lines are also kept free of scale. Fret Booklet Gives Details Cleaning Air Filters For cleaning viscous type filters, hot or cold solutions of recommended Oakite material may be used. Short immersion of filter, followed by rinse, thoroughly removes dust, dirt, soot, lint and pollen without injuring filtering medium or frame metal. Steam cleaning methods also available. Full filtering capacity is eco nomically restored. FREE 16-page booklet gives details. De-Scaling Equipment Safely, at Low Cost When water scale and rust deposits form in jacket water coolers, ammonia con densers, air or gas compres sors or other water-cooled equipment... heat transfer is reduced, operating effici ency impaired. These in sulating deposits may be safely, effectively removed simply by soaking with or circulating recommended solution of Oakite Com pound No. 32. Does not harm base metal. Method is economical, thorough. Free Booklet New Free Booklet Gives Details New 20-page booklet gives successful formulas and directions for a wide range of other work such as safely de-scaling and cleaning Diesel and gasoline engine cooling systems, lube oil coolers and heat exchange equipment of all types. Write for YOUR copy today! Nation-Wide Service Because Oakite cleaning materials are backed by a binding GUARANTEE and supplied through a Nation-Wide organiza tion of Service Representatives throughly experienced in their application, users are assured of obtaining the economies and advantages they provide to effectively promote maximum performance of air conditioning, mechanical refrigerating or other equipment. 933