Document g2BM6GGa7BbdYQEx22RNoqaM3

Air System Equipment Air Vents and Roof Ventilators The Swartwout Company 18511 Euclid Avenue, Rerr-e=t2!i''~ ci4ies Cleveland 12, Ohio GRAVITY ROOF VENTILATOR GRAVITY ROOF VENTILATOR Swartwout-Dexter Heat Valve Continuous opening natural draft venti lator particularly effective for ridge of peaked roof, saw-tooth construction or skylights; adaptable to flat or slant roofs. Made in throat opening sizes 4, 6, 9, 12, 15,18,24,30,36 and 42 in. Ten foot units. Adjustable damper. Weatherproof. DUCT EXHAUST VENTILATOR Swartwout Contouramic Airmover Compact multiple opening type featur ing large free opening area and very short air travel. Modular units 10 ft by 7 ft 6 in., and 21J in: high above curb; fre quently installed in continuous runs for large scale ventilation. Completely weatherproof. Damper mechanism stand ardly equipped with 212 F fusible links for automatic opening in case of fire. - FIRE VENTILATION Air System Equipment yntll,10ra Western Engineering & Mfg. Co. ESTABLISHED 4112 Glencoe Ave. 1921 Venice, Calif. Representstires in Principal cities HIGH EFFICIENCY ROOF VENTILATORS Western Rotary Ventilator High exhaust capacity for relatively small bulk in weight. Remains in con tinuous motion between gusts, and is stormproof. It cannot backdraft because the throat velocity rises at an increasing rate with the wind speed. Wind tunnel tested. Rigid center support, and vibra tion absorptive rubber mountings, quiet performance. Enclosed, long-life lubrica tion and durable hammertone sea-green finish. Sizes: 6 in. to 48 in. inclusive. Western Continuous Ridge Ventilator For high volume, low velocity exhaust capitalizing on air movement generated by temperature difference plus induced draft, this ventilator provides a continu ous opening of any length desired in 17 throat sizes. The structure is storm and rain proof and is available with or with out adjustable dampers and screens. In herent characteristics qualify this venti lator for use in factories, foundries, mills and similar buildings. Swartwout Fire Valve The Airlift is a centrifugal fan unit for duct exhaust against static pressure. Operates at very low noise levels. Fan has backwardly curved blades completely non-overloading; bottom of wheel flared to form throat overlapping inlet increases efficiency, avoids turbulence. 14 sizes, 138 capacity variations. Roof unit for release of heat, smoke, gases in event of fire. Two large dampers drop, released by fusible link; provide 46 sq ft free area opening. Only 21 in. high above curb. Weatherproof when closed. The Pyrojector, for the same purpose, opens upward and outward; provides 28 sq ft free escape area. Write for bulletin. OTHER SWARTWOUT ROOF VENTILATOR TYPES .rotary gravity AIRJECTOR, powered VALVENT, gravity LOW-LINE, gras- and powered ity and powered ,WBIRLOUT powered louvbrs See Su/eets Architectural, and Industrial Construction Files. 228 Forbes Syphonalre A highly-engineered stationary type roof ventilator employing a circular wind band thatprevents the entrance of out side air. High capacity, rain and storm proof, rugged construction, and low silhouette, obviating the need for guy wires. Wind tunnel tested by aeronauti cal laboratory. Sizes range from 6 in. to 48 in. inclusive. Westemaire Curb-mounted Fan For low cost air movement under low static conditions, this unit is designed to meet practically every application in volving a roof-mounted exhaust fan. High speed, high velocity for industrial use or slow speed, quiet operation for commercial use. Available in 39_models. 8 in. to 48 in. Can be used in conjunction with any type gravity ventilator. SEE OUR COMPLETE CATALOG IN SWEET'S ARCHITECTURAL FILE, INDUS TRIAL CONSTRUCTION FILE AND ARCHITECTS AND ENGINEERS CATALOG rILE or write to above address for additional catalog and list of Representatives. forbet Beanoeent Graeily We,tern AirmU. Grants 229 Boater Pan, Panned