Document NGEyZNR6ObK75nwQe27Mekb0E

Air System Equipment Air Vent. Production Planning Company Rochester, Michigan Representatives in Principal Cities See Sweet's Catalog for Further Details Write to Factory for Catalog HIGH EFFICIENCY ROOF FAN Allen Type "H" Roof Fan is designed as a general purpose, power driven exhaust unit for either new construction or re placement service. It features rugged construction, low power consumption, ease of installation, large air removal capacity. Available in a wide range of capacities (750 to 45,000 cfm) and in three series: Standard, with belt drive; Direct Drive, and Remote Drive, for use where air is laden with heat, fumes, vapor or dust. VERTICAL DISCHARGE FAN Allen Type "VD" Roof Fan is designed for use where extremely high discharge velocity prevents the tendency of fumes, to short circuit back through* building openings. Fabricated of prime zinccoated iron sheet, welded construction , throughout. Automatic wing dampdfs open with air blast, close weathertight when not operating. Available with Direct Drive, with motor readily acces* sible, of Remote Drive, with motor in outside housing and enclosed' V-belt drive. \ ( j ' \ J * i \ STAXAUSTER FAN Allen Staxauster is a simple, compact, sturdy unit that can be used to convert all types of roof ventilators into power ful exhaust or air supply units. It is available in many sizes with either Direct Drive or Remote Drive for handling corrosives and/or high temperature air. \ TURBINE VENTILATOR Allen Type "C" Turbine Ventilator is wind driven and economically removes heated air, fumes and dust. It is made of heavy-gage coated iron or of specia1 non-ferrous metals, and is easy to install and maintain. Many thousands of TyPe "C" Turbines are in use in industry. 1358 i \ l THE G. C. BREIDERT CO. 3129 San Fernando Road, Los Angeles 65, Calif. Representatives Located in Principal Cities of the U. S. BREIDERT AIR-X-HAUSTERS FOR ROOF VENTILATING, VENT FLUES & CHIMNEY TOPS SUPERIOR PERFORMANCE PROVED BY CERTIFIED* RATINGS BASED ON DIRECTIONAL WIND TESTS. Breidert Air-X-Housters provide safe, sure ventilation no matter which way the wind blows. Breidert Air-X-Hausters pioneered with published certified capacity ratings based on tests* made with wind blowing in all directions as shown at right. Only 8uch: tests can guarantee the capacities a ventilator will deliver under actual oper ating conditions. No matter which way the wind blows, barring interior negative pressures, the Breidert provides safe, sure ventilation ... on roofs, vent flues, chimney-tops. Stationary, no moving Old Method of Texting Breidert Method of Testing vo:a\ jam or get, out oi order. laely used on all types of factories, commercial buildings and residences. jv j 8eason to stop ron leakage or doi Ao danger of a Breidert blowing off the rt Patent No. tf6948 ELASTIC YARDSTICKS DON'T MAKE SENSE! Capacity ratings of most ventilators are based on horizontal wind tests only. In actual use, ventilators must perform with winds blowing at any angle. In many cases of ventilators without certi fied ratings, performance does not equal ratings claimed. Capacities of Breidert ventilators have been conclusively established by Pitts burgh Testing Laboratories. This assures unbiased, factual ratings to accurately establish performance in actual use under all types of conditions, in deter mining how to best meet, your ventilating requirements. Write for Free Engineering Data Book. . . containing de tailed specifications and installation data, certified capacity ratings, etc. Address Dept. HVD. 1359