Document NGamw5R14ZpynqYagJjX3m7L8

Air System Equipment Fans and Bumm The Peerless Electric Company Warren, Ohio FANS AND BLOWERS BACKWARD CURVE BLOWERS--In sizes from 12J in. to 36} in.; selflimiting hp characteristics; NAFM standards; dynamically balanced wheel; heavy cast-iron hub; nothing in air stream; quiet entry, passage and exit; job-matched motor; convertible dis charge; belt drive or direct drive. UTILITY BLOWERS--Belt or direct drive with clockwise or counterclock wise rotation; % through 7^ hp; motors in all current characteristics; converti ble discharge; arc-welded housing; sleeve or ball-bearing construction; weatherproof drive covers optional. ARRANGEMENT 3--12 in. through 48 in. wheel; clockwise or counterclockwise rotation; convertible discharge; single or double width; motors and drives available; vibration bases optional; ball or sleeve bearings furnished. RADIAL BLADE BLOWERS--% to 2 hp; slow and high-speed units; selfcleaning wheel; ball or sleeve bearing motors; discharge as specified; base and housing of heavy-gage steel. Type Pal Type Hal VENTILATTIC EXHAUST FANS--Type PAT mounts vertically; Type HAT mounts horizontally or vertically; ideal for home, store, club cooling; resilient, sleeve bearing motors; automatic ther mal overload protected; slow-speed belt drive; arc welded. INDUSTRIAL EXHAUST FANS--Verti- cal or horizontal mounting; totally eO" closed motors; adjustable motor base, continuous duty; ball-bearing construc tion; cfm rating from 470 to 29,350, mount with 4 or 6 lag screws. 1382 Air System Equipment and Blowers PROPELLAIR Div.'ROBBINS & MYERS. INC. 1947 Clark Boulevard SPRINGFIELD, OHIO HEAVY-DUTY INDUSTRIAL VENTILATING EQUIPMENT Offices in Principal Cities For Duct*, Walls, Windates. Hoods, Roof Venti lators CentL$ied HaXitujs Propellair Direct- Connected Fans For Heat, Moisture, Fumes, Dust, and Gases 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 60 in. Capacities: 1,020 to 85,000 cfm. Type "CD" For Reai, Acids, Alka lies--Fumes, Gases, Dust 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." Belt-Driven Propellair Tube-Axial Type Power Roof Ventilator Propellair Sky-Blast 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. 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 shed pre vents leakage when dampers are closed. Sizes: 16 in. to 60 in. Capacities: 2,800 to 85,000 cfm. Propellair Vaneaxial Fans Airfoil Principle Entrance Ring Airfoil-Section Blades A compact, highly efficient pressure .an using standard steel drum sections incorporating standard NEMA frame ,n. direct drive models. Also mailable in belt-driven ratings with totor outside the air stream. Cast alu- inum airfoil propeller and guide vanes t maximum efficiency and durability. Available in 20, 24, 30, 36 , 48, and 60 in. mla??*ers *n and direct driven yodels. Capacities from 3410 to 85,000 / 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. 1383