Document MgwLM7rN16DMX3QmE0Z3DELz

X Air System Equipment <* Blowers PROPELLAIR Div. ROBBINS & MYERS, INC. 1947 Clark Boulevard SPRINGFIELD, OHIO VENTILATING SPECIALISTS IN ALL PRINCIPAL CITIES Propellair Direct- Connected Fans For Ducts, Walls, Win dows, Hoods, Roof Venti lators For Heal, Moisture , Fumes, Dust, and Oases Propellair Extended-Shaft Fans For use wherever motors may operate within the air stream, from free air to medium and relatively high resistance. A compact, durable design with fan having two to six blades. Sizes: 12 in. to 60in. Capacities: 1,020 to 85,000 cfm. Type "C.D." For Heat, Acids, Alka lies--Fumes, - Gases, Dust Belt-Driven Propellair Tube-Axial Type A complete fan unit in short duct section ready for installation in lines from 20 in. to; 60 in. diameter. Type "CS" may be used for severe acid or alkaline condi tions, explosive fumes and gases. Type "CSV," for excessive temperatures, cir culates outside air through belt and fan shaft tubes to keep drive and bearings cool. Capacities: 5,073 to 85,000 cfm. This design locates motor outside air stream when fan is installed in duct at right angle turn, elbow, "Y," or offset. Simple installation usually can be sup ported by duct without auxiliary brac ing. Drive shaft is enclosed and sealed within steel tube. Sizes: 12 in. to 60 in. Capacities: 1,020 to 85,000 cfm. Type "CE." Power Roof Vent-dator Propellair . Sky-Blast Dependable and economical power roof ventilators.' Butterfly dampers open wide the instant fan is started, close automatically as fan coasts to a stop, offer virtually zero resistance as heat, fumes, moisture, dust shoot high into air. Rain is prevented from entering by fan when operating. Drainage gutter pre vents leakage when dampers are closed. Sizes: 16 in. to 60 in. Capacities: 2,800 to 79,000 cfm. X Propellair Vaneaxial Fans Airfoil Principle Entrance Ring Airfoil-Section Blades A compact, highly efficient pressure fan using standard steel drum sections incorporating standard NEMA frame motors in direct drive models. Also available in belt-driven ratings with motor outside the air stream. Cast alu minum airfoil propeller and guide vanes for maximum efficiency and durability. Available in 20, 24 and 30 in. diameters, and direct connected models to 60 in. dia meters. Belt driven models ranging from 3,410 to 85,000 cfm. V Propellair fans have airfoil-section blades with variations of pitch, curva ture, and thickness to compensate for different lineal speeds of points at vari ous radii. Air movement is uniform over whole fan area. The Propellair curved entrance ring eliminates eddy currents; helps efficient Propellair blades deliver highest pressure and volume. 1296 Air System Equipment Blowers CLIPPER Trade-Wind Motorfans, Inc, 5725_So. Main St... Los Angeles 37, Calif. Representatives In All Principal Cities. Carried In Stock By Many Electrical Jobbers BLOWER TRADE-WIND CLIPPER CEILING VENTILATORS Cutaway view of Model 601 shows doubls blowers used in this unit. THE TRADE-WIND CLIPPER BLOWER is a small capacity centrifugal blower, primarily used for exhaust ap- lication. While used extensively for ome kitchen ventilation, it is adaptable for other applications, such as in school toilets, therapy and treatment rooms in hospitals, dental laboratories, ticket booths, offices and x-ray and photo graphic dark rooms. This is a "unit package" assembly, com plete with ceiling grille and necessary electrical connections. It is Underwrit ers' approved and listed. It carries a (pro-rata) five year guarantee. The in stallation requires only the application of a discharge duct of the same dimension as the outlet collar and the optional addi tion of an automatic shutter for the end of the duct. The assembly is inherently quiet and is installed rigidly in the structure without need for resilient mountings or flexible duct connections. The blower is nor mally quiet at its maximum speed. The motor and wheel unit is removed easily without tools through the ceiling inlet opening. The patented construction of the Clipper entirely isolates the motor from the air stream. This special fea ture keeps the motor free from contam inated air, adding to its service life. LEFT: Blower unit and grille tn all Trade-Wind models are easily removed without tools. Unit shown is Model 1601. RIGHT: Model 9501 installs in a cabinet overthe stove.Inlets, equip ped with washable filters, are pro vided in base of unit and at ceiling and fold-under hood is optional. Selection Chart and Specifications TRADE-WIND CLIPPER VENTILATORS--115 Volt, 60 Cycles, A.C. Cat No. 1201 Clipper Description Horizontal discharge com plete with grille. Type Blower Single Wheel Net Air CFM 100 Recomm. Max. Room Size Cu Ft Bathrooms Only Duct Size 4* Round Motor Watts 60 1501 Clipper Interchangeable horizontal or vertical discharge, complete with grille. Two Wheels 300 1000 KTxSr 90 2501 Clipper Interchangeable horizontal or vertical discharge complete with grille, 2-speed motor & switch. Two Wheels 425 2000 10*x3J* 145 3501 Super Clipper Cabinet Installation Includes housing, 2 filters, 2-speed motor and switch; stainless steel hood optional. Two Wheels 550 3000 13'x4* 185 1297