work, o r when only small areas of production components require plating. Ideal maintenance a n d repair tools because the need for disassembly and reassembly is often eliminated. Price of tools is available from manufacturer. Dept. I EC, Selections, Ltd., 520 Fifth Ave.. New York 36, Ν. Υ. Ε-8
Chevron-Type
Baffles
Optically-dense chervon-type baf fles prevent back-streaming from the diffusion p u m p s in a v a c u u m system. Baffles are light in weight a n d corrosion-resistant, being m a d e
Top Entry Ball Valves New top entry ball valves feature a one-piece body design constructed from cadmium-plated carbon steel or from stainless steel bar stock to give m a x i m u m safety, strength, a n d economy. T h r e a d e d inlet a n d out let connectors permit fast, positive installation in 3 / 8 -, V 2 -, 3Λ-> a n d 1inch sizes. M a x i m u m pressuretemperature ratings for t h e new valves are 150 p.s.i. a t 365° F. for steam lines, a n d 1000 p.s.i. for wa ter, oil, liquid chemical, a n d gash a n d l i n g applications. Prices avail able; from manufacturer. Dept. IEC, Strong, 508 Sandusky St., Con nectât, Ohio. E-9
of cast a l u m i n u m i n a one-piece construction. Leak-proof design provides high cooling efficiency. Baffle presents effective set of surfaces for condensing a n d t r a p p i n g oil vapors which a t t e m p t to pass the barrier. Baffles m a y b e watercooled for relatively light vacuum situations o r with Freon o r liquid nitrogen for colder operations. Available in 4-, 6-, 10-, a n d 16-inch sizes. Prices vary from $200 t o S300. Dept. IEC, F. J. Stokes Corp., 5500 Tabor Road, Philadelphia 20, Pa. E-10
Side Entering
Mixers
NSE mixer line offers a complete series of side-entering units in three basic sizes for applications ranging from 1 to 50 hp., compared t o the previous limit of 25 h p . Mixers are right-angle spiral bevel gear units with hollow quill speed reducers. RSE side-entering mixers are m a n u factured i n two basic sizes ranging from one to 25 h p . Increased number of propeller sizes assures more accurate propeller selection for n o n s t a n d a r d conditions. Mixer line offers lower e q u i p m e n t cost and (Continued on page 68A)
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CHEMICAL ENGINEERING CATALOG
SIGMAMOTOR, INC.
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INDUSTRIAL A N D ENGINEERING CHEMISTRY
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