Document eyq0x3v8pgMGN4V5paRzm3we

Fans DeBothezat Division American Machine and Metals, Inc. Executive and Sales Offices: 100 Sixth Ave., New York, N. Y. Factory: EAST MOLINE, ILL. Branch Offices and Representatives in All Principal Cities Fans and Blowers are guaranteed to have non-overload ing power characteristics. Complete operating safety under varying working conditions is assured. Disc Pressure Fans "Selective Series"--Meet all pres sure requirements efficiently--made in various sizes from 8 in. to 10 ft. Bulletin SS-101 contains complete technical data on L-Type for low pressures and HL and H Types for high pressures. Giant Fans--Are made in 5 ft. to 10 ft. diameters and are directly connected to motor, chain or Tex-rope drive. Technical data concerning these fans is contained in Bulletin SS-101. Type E of the "Selective Series." SO in., S kp. 1140 r.p.m. 8800 c.f.m. against 1 in. static pressure Bifurcators--Can be placed in a straight duct without introducing right angle turns in the ducts or requiring extended shafts and bearings. As motor is located outside of air stream, safe, care-free operation is assured. Vari-Speed Fans--Speed selection is secured through variable pitch motor pulley. Quiet. Compact. Reliable. Bifurcator. For special ventilating jobs where times of excessive temperature, corrosive or explosive character, are to be removed Duplex-Rotation Impeller Blowers--Consist of disc pressure fan wheels rotating in opposite senses so designed that the rotational losses are com pletely eliminated. The unit is directly driven by a DUPLEX-ROTATION motor, which eliminates belts and gears. It is equipped with ball bearings throughout and is suitable for horizontal or verticalmounting. This unit can replace any fan of same diameter now producing objectionable noise, without alterations. Impeller Blowers are also supplied.with belt.or gear drives. Write for Bulletin DR-101. 8-Stage Duplex-Rotation Impeller Blower. Large . air volumes against high static pressures at low peripheral velocities. Extremely high efficiency over entire range of operation 944 Giant Fan. Powers from 6. hp. to 100 hp. Volumes to 810.000 c./ m static pressures to 8 in. Fans Autovent Fan & Blower Company 1809-23 N. Kostner Ave., Chicago Illinois FANS--BLOWERS UNIT HEATERS Autovent "31" Series Propeller Fans-- Will not churn air or overload the motor. Especially recommended for economical ven tilation. Ruggedly constructed. Capacities from 500 to 38,000 cfm. Write for bulletin No. 200. Acid-Moisture Proof, Explosion Proof Fans--Wherever acid fumes or excess moisture laden air exists, the Acid-Moisture Proof Propeller Fans equipped with fully enclosed motors and fan wheels with Bakelite coating (or of special construction) are recommended. Wherever explosive gases and chemical fumes must be removed, VaporExplosion Proof Propeller Fans (underwriters label "Class 1-group D") with fan wheels of copper, brass or other non-ferrous metals must be installed. Write for bulletin No. 201. AUTOVENT "31 SERIES" PROPELLER FANS Constant or Two Speed--Alternating Current--Multiphase-- 220 or 440 Volts--60 Cycle Size Type 16HMN J6HMR 18HMN 18HMR 20HMN 20MHR 24MHL 24HMN 30HML Motor Hp 1/8 1/5 1/8 1/4 1/4 1/4 1/6 1/4 1/4 Cfm Max. 1700 1950 2350 2950 3450 3550 3850 4500 6000 Appr. Rpm Max. 1140 1725 1140 1725 1140 1725 850 1140 850 SE Wt. Lb. 64 66 77 90 115 115 145 150 210 Size Type 30HMN 36HMT 36MHL 42HMT 48HMT 54HME 60HME 72HME Motor Hp 'h Vz V. 1l"./0x 2 2Vz 3 Cfm Max. 7600 10000 12500 13500 18900 21500 25600 38000 Appr. Rpm Max. 1140 690 850 690 690 575 480 480 Appr. ShpgWt. Lb. 220 335 390 510 650 890 1200 1500 "BW" (Bucket Wheel) Propeller Fans--A slow speed operating fan. Provides efficient ventilation for unlimited uses, from 500 to 40,000 cfm. Sturdily constructed, minimum power, available at low, quiet operating speeds. Write for bulletin No. 202. [ Autovent Uniblade Volume Blowers--Motor driven--universal discharge, for fume hoods, chemical labs, processing, drying, forced draft, etc. Handles low volumes of air at medium pressures. Wheels range from 6 in. to 11 in. dia.--same design as heavy duty blowers. Can be mounted on floor, wall or ceiling. Direct Connected Blowers for general ventilating applications, available in wheel diameters up to 25 in. Bulletin No. 300. Forward Curve Belt Driven Blowers No. 301. Autovent "V" Belt Driven Unit Blowers--Forwardly curved blade type with smooth air flow and quiet bearings. Motor mounted on steel pedestal, integral with blower housing, making a compact unit. Air delivery can be decreased or increased if desired. Interchangeable motors. Sturdily constructed of sheet steel, rolled lock seams. Write for bulletin No. 300. Backward Curve Belt Driven Blowers No. 302. Autovent Super-Type Steam Unit Heaters--This suspended type heater forces air circulation and directs warm air to lower part of room. Heating element of flat copper fins, attached to seamless, drawn copper tubes. Tubes run vertically for perfect drainage. No welded or brazed joints in coil or header. Fans have non-overloading power feature. Motor furnished to requirement. Write for bulletin No. 101. 945