Document dnBRqyX2RoJY8JRw4JLGd0rpR

236 Air System Equipment Bm{ VnlU*t< ENN VENTILATOR CO., Goodman above Allegheny Ave., Philadelphia 40, Pa. Representatives and Distributors in Principal Cities INC. Air System Equipment vwiuim WESTERN ENGINEERING & MFG. CO 4112 Glencoe Avenue, Venice, California Representatives in Principal Cities 237 ESTABLISHED 1921 Penn Dyncrfan Manufacturer* of ROOF VENTILATORS AND ACCESSORY PRODUCTS FOR PUBLIC, COMMERCIAL AND INDUSTRIAL BUILDINGS DOMEX -- V-bell and direct drWen centrifuge! tans in a woather-tight span aluminum bousing. Badrwardly curved statically and dynamically balanced fan wheels with non-ovorioadcng dieraderbtia. Over 60 capacity selections. Buflelia 0MXA-B8. KUEX -- Straight through -- high velocity ver tical discharge air exhausters -- streamlined housing. Certified capacities Iran 24,000 dm to 60,000 dm. Bulletin PH-44H. SONOTSOt CURB -- Bulletin SC-88 contains data on Penn's root curbs. Information per taining to extruded aluminum curbs as well as fabricated types is outlined. In most Instances where a gravity or powered ventilator b used, a root curb b also required. Penn's acoustically and thermally insulated curbs ere ot superior quality and generally cost no more then field constructed curbs. TURBINE -- Ball bearingHurbine ventilators are true rotary, air-driven suction turbines tbet work automatically 'end continuously without maintenance or operating expense. Boll bear ing action enables the slightest motion of oir-to move the rotor. BulUiin PT-24A. Writ* far any or a/J of the above itMratod catalogs PENN VENTILATOR COMPANY, INC. For More Thao 25 Years, The Buildtn Roof-Top line * Manufacturers of PROPELLER FAN, CENTRIFUGAL, STATIONARY and ROTARY RIDGE VENTILATORS Penn VeilScfon are fisted in Sweets Architectural and Engineering Piles * Charter Member AMCA Mechanical ventilation without power cost. Certified capacity ratings. Will Dot back-draft. Stormproof. Perma nently sealed ball bearing assembly with lubricant reservoir. Rubber ISO-mounting. Baked enamel finish. High volume exhaust. Architecturally desirable. Fabricated in any length in 12 throat sizes to fit any roof. Storm proof. Optional dampers (manually or electrically operated). A stationary ventilator providing high exhaust certified capacity regardless of wind direction. Rugged construction. Rainproof and stormproof. Low sil houette. FORBES ECONOVENT VENTILATOR Rugged design. Engineered construction at a low price. Certified capacity rat ings. Low silhouette. WESTERN AIROUT VENTILATOR Directional type ventilator. Moves in the direction of airstream for maximum exhaust power. Certified capacity rat ings. B&iaaced, rugged and stormproof. FORBES AMVENT VENTILATOR Government specification ventilator. Meets Corps of Engineers Guide Speci fications CE 220.09, October 5, 1951. Removable top plate. Optional bird or insect screen or damper. WESTERNAIRE VERTICAL EXHAUST VENTILATOR High capacity industrial "blow open" exhauster. Stormproof. Low silhouettePrevents roof damage or re-entry of air in building. Fourteen gauge construc tion. WESTERNAIRE BOOSTER FAN Duct mounted fan installs between ventilator and base. For new or existing construction. Permits ventilator ex haust when fan off. WESTERNAIRE CURB MOUNTED FAN Provides fan diameter same size as throat diameter for maximum exhautt. Available in 40 models. Capacities ba /id on NAFM ratings. See our complete Catalog in SWEET'S ARCHITECTURAL FILE, INDUSTRIAL CONSTRUCTION FILE and WESTERN STATES A-E-C CATALOG FILE