Document O1b6KwJbDLmKworMaXGKLepLX

Heating Systems (Orifice) AMERICAN RADIATOR COMPANY division orAmerican 'Radiator & Standard Sanitary Corporation 40 West 40th Street, New York. N. Y. CONTROLLED WARMTH SYSTEMS The Arco Model K Vapor-Orifice System is an engineered and coordinated unit which operates to insure equal distribution of warmth. On each radiator there is in stalled a special inlet valve with an adjust able orifice, by means of which flow of steam to each radiator can be accurately calibrated in accordance with the capacity of the radiator. The adjustment can be made while the system is in operation. Pressure is so controlled that no more steam is admitted to the radi ators than they are capable of con densing. Therefore no thermostatic traps are required on the return con nections of the radiators. A ther- When a zone system is used, the zone valves prevent the self-equalizing action and it is necessary to install an Arco Condensation Pump to insure the return of condensate to the boiler. Schematic Piping Arrangement of Zoned Model K System Schematic Piping Arrangement of Simple Model K System Simplicity of design and moderate cost make possible the installation of this system for little more than the cost of a One Pipe Steam System. "Standard Specifications" and "Design and Installation Guide" including all details are available at American RadiatorCompany branch offices. USED WITH MODEL K SYSTEM mostatic air eliminator equipped with a vacuum check is provided. If the pressure through inadvertence should exceed the design pressure, steam will enter the return lines, close the vent port of the air elimi nator, and the system will automatically equalize itself, insuring the return of con densate to the boiler. Arco No. 900 Adjust able Orifice Valve--Ori fice may be adjusted per manently to "meter" the correct amount of vapor to each radiator according to its capacity, to effect balanced heating. See also Pages 848, 898-901 974 Healing Systems (Hot Water) Davis Engineering Corporation HEAT TRANSFER SPECIALISTS SINCE 1915 Branch Office: 90 West Street New York City ifofocoU General Office and Factory: Elizabeth, N. J. PRODUCTS--Davis Automatically Fired Boilers, Paracoil Storage Water Heaters, Instantaneous Water Heaters, Fuel Oil Heaters, Oil and Water Coolers, Distillers, Feed Water Heaters, Feed Water Filters and Grease Extractors, Steam Traps, Evaporators, Converters, Preheaters, Hot Water Generators, Condensers, Heat Exchangers Years of trouble-free service without excessive maintenance charges have been the aim in the design of Paracoil appara tus. Paracoil Heat Exchange Products are preferred by many leading industrial, naval and building engineers. Many large ships and famous buildings have Paracoil heat transfer equipment. Special heat transfer problems invited. Write for bulletin on products in which you are interested. PARACOIL INSTANTANEOUS U-TUBE TYPE WATER HEATER Ideal for apartment houses, hotels, etc. Connected below water line of boiler, heats water supply when fires are banked. Castiron or steel shell, heating elements of seamless drawn copper. Capacities 300 gal. and up (below water line installation) or 20 gal. and up (live steam installation). Catalog on request. PARACOIL STORAGE WATER HEATER For heating and storing hot water for apartment houses, office buildings, hospi tals, laundries, etc. Operates with boiler water, exhaust or live steam as heating medium. Steel plate storage water shell with removable seamless drawn copper heating coils. Any pressures specified. Capacity 40 to 25,000 gal. per hour. Capacity tables, calculating data, etc. on request. Write for catalog. TUBULAR HEAT EXCHANGERS For cooling lubricating oil or water and similar heat exchange uses. Removable or non-re movable tube bundle as required. Transverse or Longitudinal Baf fling as required. Floating tube sheet and head construction or shell expansion joint compen sates for expansion and con traction strains. Built in single and multi-pass types. Small space requirements. Write for information. PARACOIL FUEL OIL HEATER, TUBULAR AND COIL TYPES RanD System of Fuel Oil Preheating in Storage Tanks Efficient and compact, removable heating element, freedom from ex pansion and con traction strains. Designs permitting easy cleaning. Turbulent flow of oil assures high heat transfer. Unusually low pressure drop or friction loss. Variable baffle spacing gives vari able velocity in pro portion to change in viscosity. Hori zontal or vertical installation. Write for catalog. +**** Section of Paracoil Tubular Heat Exchanger 975