Document b5reBwGO1XNZ0V273O9JGdMay

Air System Equipment Fans and Blowers Hartzell Propeller Fan Co. DIV. OF CASTLE HILLS CORP. Piqua, Ohio Sales-Engineering Offices in Principal-Cities Manufacturers of Propeller-Type Fans and Blowers For Eveiy.Industrial Use SINGLE PROPELLER FANS TWO-PROPELLER FANS Sizes, 12 to 144 in.; free air deliveries 590 to 270,000 cfm. NEW curved orifice overlaps propeller tips, forming Hartzell Airseal (pat ented), giving extra air delivery, minimum tur bulence. Send for Bulletin 1101. Sizes, 16 to 144 in.; free air deliveries 2,400 to 275.000 cfm. (Up to 200.000 cfm against 0.34 in. static pressure) NEW curved orifice and patented Hartzell Airseal mean maximum air. Send for Bulletin 1101. MULTIBLADE FANS BLOWERS Sizes, 12 to 144 in.; free deliveries 1,200 to 280.000 cfm. (Up to 200.000 cfm against 1.00 in. static pressure) Long life, low upkeep. NEW curved orifice and patented Hartzell Airseal. Send for Bul letin 1101. Sizes, 18 to 48 in.; free air deliveries 3,300 to 50,500 cfm. (Up to 32,200 cfm against 2 in. static pressure), Built in both belt drive (shown) and direct drive models. Easy installation. Send for Bulletin 1601. BELT-DRIVE FANS Sizes, 12 to ,144 in.; air deliveries 590 to 280.000 cfm. Avail able in one-propeller, two-propeller and multiblade styles. For use in fire-hazardous locations such as paint spray booths. Greasesealed, dust free ball bearings. Send for Bul letin 1401. EXTENSION SHAFT FANS COOL BLAST. FANS Models: Portable, Sta tionary and Heavy Duty Cool Blast Fans (stationary shown), sizes 24 to 55 in., for large-volume air move ment; Industrial Stand Model, up to 36 in. size, with substantial but light-weight high stand; Utility, up, to 36 in. size, extremely versatile, with simple, close-to-the-ground mounting. Send for Bulletin 1201. . Sizes, 12 to 55 in.; types, one-propeller, two-propeller and multiblade. Designed for use in ducts through which corrosive elements, excessive heat or abrasive dust passes. Send for Bulletin 1401, COOLING TOWER FANS Sizes, 3 to 16 ft; four and six blades, ad justable pitch. 10 to 16 ft sizes are special Hartzite plastic, steel hub. Smaller sizes are aluminum alloy. Send for Bul letin 1501. SPECIAL EQUIPMENT There is a Hartzell fan or blower to meet your needs or we will design and build one for you. Write. All Hartzell air deliveries are in accordance with the Standard Test Code for Centrifugal and Axial Fans. 948 Air System Equipment The Lau Blower Company 2007 Home Avenue, Dayton 7, Ohio Engineers and fabricators of general Air Handling Equipment Single Inlet and Double Inlet Blowers Propeller Fans Accessories THE WORLD'S LARGEST MANUFACTURER OF FURNACE BLOWERS Blower Assemblies For easy adaptation to modern installation problems wherever it is necessary or desirable to move air--Lau Blower assemblies offer efficient air delivery with low power con sumption. Developed through years of ex perience and in accordance with approved principles of fan design. Double or single inlet. Top, side, or rear motor mountings. Dynamically balanced wheels. Self-aligning bearings. Widest range available. Greatest selectivity of air delivery. Every size tested and rated for performance in accordance with A.S.H.V.E. and N.A.F.M. Codes. Blower Wheels Lau can supply both single and double inlet blower wheels in wide range of diameters and lengths. Also for both clockwise and counter-clockwise rotation. Back plate (or center disk) dieformed for greater strength. Blades are precision cut and formed for maximum air contact. Wheels deliver highest rated per formance for space required. Dynamically balanced. Operate quietly and economically. Propeller Fans For providing fresh air in confined enclosures; removing stale, excessively hot, or dust-laden air, fumes, smoke, etc. Three broad, deeppitched blades provide maximum volume air with minimum power consumption. Venturitype entrance housing reduces air "drag" and turbulence--eliminates most common cause of "air noise." Five sizes. Catalogs, performance data, specifications, and prices available on request on above and other air handling equipment. Inquiries solicited for any application. Our engineers will gladly as sist you. Write us regarding your requirements. Constant Speed and Variable Speed Pulleys - 949