Document xzwnaGKGvbneL7Jb4L3qEbKg0

Air System Equipment Barber-Colman Company ENGINEERED AIR DISTRIBUTION OUTLETS Rockford, Illinois AUTOMATIC TEMPERATURE CONTROL SYSTEMS Quality-built units with directional diffusing fins provide quiet, uniform, draftless air distribution. Made in wide range of types and sizes. When system is engineered from accurate data tables, performance is guaranteed. DOUBLE DEFLECTION GRILLES Greater versatility from simple units is obtained by adjustable vertical fins and removable core. High aspiration efficiency, rapid diffusion, maximum, temperature differential, minimum pres sure drop, and guaranteed performance. IRIIHM LINE TYPE CEILING J------- OUTLETS A new idea in air distribution, matching modern architectural concepts and con tinuity of design. Linear panel units can be used singly, end to end, or in patterns. Also furnished for combina tion with M21118 Day-Bright fluorescent lighting unit. VenlUtF/fo CEILING OUTLETS Provide uniform peripheral air distribu tion with quiet operation and high.diffu sion efficiency. Neat in appearance and made in several types and a full range of sizes and capacities. Adaptable to all kinds of ceiling systems. ELECTRIC CONTROLS MOTOR-OPERATED VALVES Various types of thermo stats for room, duct, remote bulb, and other kinds of installations. Microtherms for the mi cro-control system. Used with Barber-Colman valves and other equip ment. Powerful motor-opera tors provide positive valve action for accurate control of flow of steam, gas, water, oil, or other fluids. On-off or propor tioning types in a wide range of Bizes. Write for catalog F-1753-1. 1250 Air System Equipment ghjST5 Charles Demuth & Sons, Inc. Mineola, N. Y. Demuth Draftless Air Distributors Type (SL) The DEMUTH DRAFTLESS AIR DISTRIBUTOR consists of a series of curved vanes, mounted on a deflecting cone, to insure 360 deg distribution with out the aid of secondary equalizing devices. A second hollow deflecting cone is arranged at a tangent to the primary cone, forming an injection nozzle. The curved vanes discharge the supply air in turbulent streams, mixing room air with condi tioned air, thereby providing constant air motion, uniform temperature and draftless distribution throughout the room. Secondary air currents, which are created by the turbulence of the discharge air, are drawn into the . diffuser by the bottom or secondary cone, mixed with the supply air, resulting in positive aspira tion. These diffusers are available in all sizes and are manufactured of aluminum, steel or special metals. The respective finishes of these metals are: Pol ished, Satin or Painted Aluminum, Painted Steel, Stainless Steel, etc. Lighting Fixtures as illustrated by Type SL are standard accessories and are available in Type S, Type F and Type I. For pendant or other special lighting applications, please consult your local representative or write direct to the factory. Volume Controls can, upon request, be in corporated into the diffuser at the time of manu facture. This device is intricate in design and sim ple to install--two very desirable features. It adj usts the volume of air supplied without decreasying the efficiency of the DISTRIBUTOR. For further details, consult our complete cata log. 1251