Document mp8LQBkgJje3o7DJwYJJRyy9B

Air System Equipment Air Filters 155 E. 44th St, New York 17, N.Y. Glasfloss IMPINGEMENT TYPE AIR FILTERS A GLASS FIBRE FILTER FOR ALL TYPES. OF FORCED AIR HEATING, VENTILATING AND AIR CONDI TIONING SYSTEMS. By the Glasfloss process . . . long, fine glass fibres are assembled in a fluffy, resilient mass, with an intricate maze of air passages. The fibres are firmly bonded with a high temperature bonding agent, then treated with a special fire resistant, dust catching adhesive. These fine, curly fibres provide highly efficient filtering action with ample space for filtering large quantities of dust. The fine diameter of the fibres provides much more surface area--so that Glasfloss Filters actu ally catch and hold dust throughout the whole filter pack. MADE IN ALL STANDARD SIZES SHOWN DIMENSIONS AND MANUFACTURING TOLERANCES Nominal Sizes (standard) Glasfloss Air Filters are supplied in both 1* and 2* thickness in all standard sizes. Use these standard sues when ordering. 20* x 25* 20* x 20* 16* x 25* 16* x 20* 15* x 20* 10* x 20* 10* x 10* 16' x 2296' x 1' Volume of Air Cleaned 1000 CFM 800 CFM 800 CFM 640 CFM 600 CFM 400 CFM 200 CFM 750 CFM Actual Dimensions Width Height Thickness 1* Filter TOLERANCES V Filter Plus 0.00*, Minus Va 19-V 19.-H' 15-96* 15-%' 14-96* 9-96' 9-%* 16* 24-J6* 19-M' 24-96' 19-96' 19-96' 19-%T 9-96' 22H' Plus or Minus Hs' 96' 1-96' 96' 1-96' 96' 1-96' 96' 1-96' 96' 1-96' %' l-%* 96' 1-96' 96' 1'only Special sized Glasfloss Air Filters will be manufactured upon request. All sizes of filters have W border of chipboard on faces except 10* x 10r x 1* filter which has M* border and 10* x 10* x 2* filter which has H'- 1178 Air System Equipment Air Filters and Cleaners Raytheon Manufacturing Company Waltham 54, Massachusetts Sales Engineering Offices: Boston, Chicago, Cleveland New Orleans, New York, San Francisco, Seattle, Washington, D. C., and Wilmington, Calif. Manufacturers Agents In All Principal Cities &xce//<mce in Sleetumics RAYTHEON SERVING THE NATION'S ENGINEERS IN THE FIELD OF ELECTROSTATIC AIR CLEANING RAYTHEON PRECIPITATORS remove virtually all dust, smoke, soot, lint, oil mist and other air borne dirt--including particles as fine as 1/250,000th of an inch, as proved by tests developed by the National Bureau of Standards. RAYTHEON SERVICE begins with spe cialized engineering knowledge and assist ance offered to architects and engineers planning installations . . . extends through Raytheon service offices in all principal cities to contractors making the actual in stallations--and continues "on throughout the years so that users may be assured of all the advantages designed and built into the equipment. CELL-UNIT TYPE Raytheon Precipitators, designed for installation in air circulating, air conditioning or other air duct systems, can be built up to any desired capacity. EASE OF INSTALLATION achieved by cell unit construction is illustrated by view of partial assembly of 20,000 cfm Industrial Precipitator shown top right. Light weight ionizer and - collector cells are readily in serted or removed from opposite sides of rigid frame. CELL- WASHING may be accomplished manually or semi-automatically as desired. The manual type*, which is most commonly used (see top right) can be washed efficiently by hand when the system is shut down. The semi-automatic type* (see lower right) au tomatically washes and applies adhesive without the necessity of shutting down the system. This type is also advantageous on large installations where systematic wash ing is required. `Write for Manual Bulletin or Semi-auto matic Bulletin. 1179