Document rBLpGeNyR11g7K9VjVbJ1Bp90

Warren Webster & Company , . Heating Systems g,7ater STEAM HEATING AND PROCESS SPECIALTIES Radiator Valves--Choice of spring re tained packing, Type BW-P "or Sylphon Bellows Packless Series 600-S. 34 in., % in., 1 in., 134 in. sizes. In angle, right and left hand; straightway, with single or double union. Spring retained packing. For low pressure vapor and vacuum steam heating service. Double Service Valve--% in. and 1 in. sizes. Incorporates Webster Thermo static Trap and Webster Radiator Supply Valve in a single compact unit. Drips down-feed riser and serves as supply valve to radiator or convector. Saves six . fittings and 'installation work. Thermostatic Traps--Series "7" (dia phragm type) and Series "5" (bellows type) for radiators and drips. 34 in., 54 in. and 1 in. sizes. There are six body models for the 34 in. size alone. Maximum pressure, 25 lbs .per sq in. For lowj pres sure vapor and vacuum steam heating service. Series "78" for process. % in., 34 in., M in: and 1 in. sizes. Class 2 for pressures of 60 to 150 lbs. Used to dis charge air and water from heating coils of any apparatus using steam at process pressures. _ Heavy Duty or Drip Traps--Series "26" Float-and-Thermostatic for heating and air conditioning. Most used sizes: 00026, 0026, 026. Pressures up to 15 lbs per sq in. Made for 'the pressure and capacity conditions encountered at all drip points. Series "79" Float-andThermostatic for process. For pressures up to *150 lbs per sq in. For use where large volumes of hot condensate must be handled more quickly than is possible by thermostatic traps alone. Dirt Strainers--34 in. to 6 in. sizes. Maximum working pressure 150 lbs per sq in. Placed ahead of traps in return lines of steam-using equipment and steam heat ing systems to catch dirt and other parti cles, preventing them from impairing the tightness of the traps. Boiler Protectors--One size, with J4 in. connections with or without electrical cut-out switch. Maximum pressure 15 lbs per sq in. Maximum cold water main pressure, 150 lbs per sq in,, minimum not less than 25 lbs per sq in. Prevents breakage in low pressure heating boilers when the water level becomes inadequate. Vacuum Pump Governors--In sizes , M in. to 3 in. Standard valve furnished for pressures up to 150 lbs per sq in. Special valve available for higher pres sures. Govern flow of steam to steamdriven vacuum pumps. Suction Strainers--Maximum work ing pressures 15 lbs per sq in. Installed ahead of vacuum pump to prevent dirt from damaging pump. Vacuum Breakers--Sizes 34 in., 1 in. and 134 in. adjustable on job. Size 34 in. for radiators is factory adjusted. For automatic breaking of vacuum at pre determined setting in heating systems, feed water heaters, hot water generators, industrial pressure chambers, etc. Expansion Joints--Crosshead or in ternally guided. In single slip and double slip models in most widely used pipe sizes! For pressures up to 200 lbs per sq in. For steam, hot water, hot oil, hot gas, and condensate return lines. RADIATION AND HEATING SURFACE Webster System Radiation--Nonferrous convector radiation. Each Web ster System Radiator includes a complete enclosure of furniture steel with baked prime coat. Contained within the en closure is a prefabricated unit, combin ing heating surface, valve, trap and union connections, shipped ready to connect to supply and return piping. Webster System Radiation was first offered in 1932. From its introduction until withdrawal from the market because of war conditions, more than 1,000 in stallations were made. Now, available in an improved design, using the same basic material, copper tubing and aluminum fins. Increased rigidity of the tubing and the development of a new method of manufacturing has produced a fin surface of unusual rigidity, free of expansion and contraction noises. . Webster Type WI Extended Surface Radiation--Covered by patents and pat ents pending. Completely non-ferrous, being made up of 1)4 in. outside diameter .035 in. thick specially annealed copper tubing with rib-reinforced, square pressed aluminum fins and brass female couplings with 1 in. i.p.s. tapping. Available in five lengths from 2 to 6 ft inclusive. Can be used to advantage in many buildings with steam or hot water heating, particularly where floor space or vertical wall space is limited. . 1228 Warren Webster & Company Heating Systems vnftlr^tera WEBSTER-NESBITT UNIT HEATERS Are manufactured by John J. Nesbitt, Inc., Philadelphia 36, Pa., and are distributed solely through Warren Webster & Company, Camden, New Jersey. Designed to circu late large volumes of air at comparatively low temperatures, assuring quick heating. Ratings of Webster-Nesbitt Unit Heaters are based on tests made in accordance with standard test code of Industrial Unit Heater Association and A.S.H.V.E. PROPELLER FAN UNIT HEATERS `-frium. i.UFilvu jju-ilmLiJm;1-*hWitf- *- ill nil Li in ' < hi II! m i i Fig. 11. Standard Propeller-Fan Type Designed to incorporate four character istics proved by wide experience to be essential to both proper application and satisfactory performance: . 1.) Selective range of sizes. Manu factured in nine sizes. Heating capacities vary from 34,700 to 338,000 Btu per hour.. Air deliveries from 470 to 4800 cfm. GIANT UNIT HEATERS Sturdy blower-fan units for the econom ical heating of large areas. Standard (Non-Ther- madjust) Type. Used principally where heat ing is by recirculation only, and where con stant heat output is desired during period of operation. Thermadjust Type. Employs dampers in front of casing and Fig. 1 Blower-Fan Type over face of heating element to provide mixing of unheated and heated air, producing heat output in accor dance with requirements and continuous circulation of air volume. Valve Controlled Type. Unit is of stand ard casing arrangement but equipped with Nesbitt Heating- Surface with Steamdistributing Tubes which allows for auto matic control of heat output. Floor mounted, wall mounted, ceiling suspended, from 101,000 Btu, 3250 cfm, to 930,000 Btu, 15,200 cfm. Write for details. Catalog W-N 128. LITTLE GIANT UNIT HEATERS 2.) Quiet Operation. All fans have blades of exceptionally large areas and of a shape to impart a gradual acceleration to the air stream. Ample spacing is maintained between the fan and heating element. Motors are of sleeve bearing type and equipped with isolators. 3.) Durable lightweight Heating Elements. Extended fin-and-tube type, constructed of copper condensing tubes and plate-type aluminum fins. 4.) Modern Casing Design. Compact suspended type. Catalog W-N 126. Fig. IS. "Little Giant" Down Blow Type New, light compact draw-through high velocity down blow unit heaters. 122,000 Btu, 2370 cfm to 505,000 Btu, 10,080 cfm at basic rating of 2 lb steam and 60 deg entering air. , Down Blow Type. Generally used when the presence of cranes and other machinery requires that the unit and piping be located well above the floor level. Write for details. Catalog W-N 127. 1229