Document kDy36mVOYyq4jwE04Eynd18LJ

Begins on page 254 \ Dc power supplies and test in struments are subject of 16-p bulletin. Specifications are fur nished with dimensions ratings. The Opad Electric Company, 43 Walker St, New York 13, X. Y. Heat exchangers are detailed in 24-p catalog 101. Units are avail able in 150-, 300- and 450-lb tube- and shellside pressures: 2. 4 or G passes tubeside. The Griscom-Russell Co, 185 Wetmore Ave, Massillon, Ohio "Silicones for electrical insula tion" is title of 8-p publication CDS-2SS. Electrical and electron ic applications for silicones are charted. General Electric Com pany, Silicone Products Dept, Waterford, X. Y. Semiconductor catalog covers over 800 devices, gives ratings, characteristics and descriptive data on silicone - glass diodes, rectifier cells, h-v cartridges, sil icon-controlled rectifiers, silicon solar cells. Write on company letterhead to International Rec tifier Corp, El Segundo, Calif. Hydraulic products are topics of three catalog sections featuring tubing, fittings, hose. Applica tions, specs are detailed. Formite Tube Company, Two Rivers, Wis. fc Safety - relief - vnlve catalog 301 has 100 pp, illustrates and de scribes firm's complete line. Ca pacity chart and tables, valveservice index, maintenance-equip ment details, guide to corrosionresistant properties aid selection. Crosby-Ashton, 8 Kendrick St, Wrentham, Mass. ^ Electrical - indicating panel in struments are covered in 24-p catalog available to engineering personnel. Electric Sales Div, DeJur-Amsco Corporation, 45-01 Northern Boulevard, Long Island City 1, N. Y. Only 2 repackings a year with R/M 1845 "versi-pak" -- more than 26 with former boiler feed pump packing Poor packing life, expensive shaft wear, and constant takeup were all problems harassing the boiler room engineer at Ludlow Papers, Ware. Mass., in maintain ing a boiler feed pump operating at 325-350F and 3450 rpm. The life of the braided asbestos pack ing formerly used was only 1-2 weeks, the shaft had to be replaced in less than a year, and too frequent packing takeup was necessary. Maintenance Specialties Co., an R/M Big 7 Packing distributor, solved all prob lems fast with R/M 1845 "versi-pak" nonjacketed plastic packing. This Big 7 Type No. 1 Packing, made from long asbestos fibers combined with low-friction compounds and nonleaching lubricants, not only extended packing life to 5-6 months, but also resulted in negligible shaft wear and packing takeup. And R/M ` versi-pak" costs less per set than the former packing. Ludlow Papers, one of the largest man ufacturers of gummed and coated label papers, specialty papers, reinforced papers and tapes, plastic film, and plastic coated materials, is one of many concerns Seveneering with R/M to meet their pack ing needs. Our Big 7 Packing Selection Chart is a helpful guide to the selection and appli cation of R/M Packings for all types of equipment. Write for your copy today. And the next time you need packings, see your authorized R/M Big 7 Packing dis tributor. He has the technical background and the packings to solve your knucklebusting problems. Ground-in lubrication, high resistance to heat, materials handled and pressure make R/M Big 7 Type No. 1 Pack ings ideal for pumps handling water, steam, chemicals, foods, beverages, oil and solvents. POWER OCTOBER 1961 R/M's Big 7 Packing types meet 95% of all packing needs, are sold exclusively through authorized R/M distributors RAYBESTOS-MANHATTAN, INC. BIG 7 PACKINGS PACKING DIVISION, PASSAIC, N.J. MECHANICAL PACKINGS AND GASKET MATERIALS For more facts circle 954 on Reader Service card, n 197 287