Document 8RRqzg2wj0G4yk50pkL4BVgZo

396 Heating Systems Sterling, Inc. 5208 West Clinton Avenue, Milwaukee 23, Wisconsin Heating and Temperature Control Equipment Distributed through leading Healing and Plumbing Wholesalers Sales Representatives in Principal Cities CONDENSATION PUMPS 4100*4200 Series A complete line of low pressure units for ratings up to 15,000 sq ft EDR at 20 psig. Four sizes assure accurate, easy selection of pump to boiler require ment. Steel or cast iron tanks. Centrifugal pumps, mechanical type seal, built-in Simplex or Duplex. Many modifications available to suit special applications. 3500 Series Heavy duty units built as condensation or boiler return systems. Pedestal mounted tanks. Horizontal pumps. Ratings up to 65,000 sq ft EDR, up to 150 lb psig. Available in standard units or built to specification. Special units for packaged boilers. 3700 Series Built with extra heavy cast iron tanks for underground returns and pit installations. Standard units from 2,000 to 20,000 sq ft EDR, 30 psig. Special units for larger ratings and higher pressures. SPECIAL UNITS We specialize in designing and building special equipment to solve difficult condensate and boiler return pumping problems. THERMOSTATIC TRAPS Exceptional for keeping radiation free of air and condensate. Uses the "Sterlco Vacuum Thermostat" which closes uniformly regardless of pres sure variation. If, damaged, the thermostat fails in the closed position shutting off the radiation and giving positive indication that the trap needs attention. Trap maintenance greatly simplified. All traps equipped with replaceable seats. Three pressure ratings: 15, 65, 100 psig % in. L.P. angle body has smallest overall dimension for use on fin tube radiation. FLOAT AND THERMOSTATIC TRAPS Used wherever it is desired to prevent flow of steam, but to permit passage of air and water ... on unit beaters, large radiators and convectors, water heaters, steam main drips and other types of equipment where steam is used. Compact, rugged, easy to service. "Vacuum thermostat" vents air, float valve has plenty of capacity for large amounts of condensate. Sizes: % in., 1 in., 1)4 in., 1)4 in., 2 in. Maximum pressures: 15,100 psig. 120-A THERMOTROLS Self-contained, thermostatically operated radiator valves for controlling individual room temperatures. For two pipe steam or hot water systems. A simple, relatively inexpensive system of control for new or old buildings. Especially good for remodeling old systems. K in-, % in., 1 in. sizes. Angle, straightway, corner body patterns. 150-E SERIES TEMPERATURE CONTROL VALVE Self-powered, modulating, fully balanced control valve--applicable to any process involving heating or cooling by means of water, oil, steam, or other fluids. Bellows type stem seal and 125 psig makes it especially good for high tii)erature high pressure hot water systems.. Single seated. Monel bellows. Armored capillary stainless steel seat, disc and stem.,^2 in., % in., 1 in. sizes. No. 117 Series Valves built in 1)4 in. to 2 in. sizes for heating applications only. "Y" STRAINERS A complete line of "Y" Strainers. Brass strainers from % in. to 1 in. Cast iron from % in. to 3 in. 125 psig pressure rating. RADIATOR VALVES A complete line of Radiator Valves from hot water supply valves to heavy duty bellows seal type valves for Vacuum heating systems. Thermostatic Traps Float and Thermostatic Traps, Popular 69B Illustrated Heating Systems * Water Beaters end CUUcn YULA CORPORATION 330 Bryant Avenue, New York 59, New York Designers and Manufacturers of Heat Transfer Equipment--Established 1926 397 "YULATOM" Fuel Oil Protection Heater, Type "YA." Ap proved: Board of Standards A Appeals N. Y. City CaL No. 678-57-SA. Ask for Cat. O-SS Interchanger--water to water--application in air conditioning-- not cataloged. Ask for information. Bayonet Type "B" Fuel Oil Heaters, used with pump sets. Ap proved: Board of Standards A Appeals N. Y. City Cal. No. B95-53-SA. Ask for Cat. 0-32. Oil Tank Suctioo Heater used to lower viscosity of oil in buik storage tanks and facilitate pumping. Supplied with or without check valve. Ask for Cat. 0-32. Steam to Water U-Tube Convertor for heating. Ask for Cat. lib's YULATkOL Fuel Oil Heater, Type "YT", with probe, relay box, visual and audible alarm. Detects oil leaks and shuts off burner and pump. Approved: Board of Standards A Adpeals N. Y. City Cal. No. 376-50-SA. Ask for Cat. 0-S9. Full Floating Head Heat Exchanger--not cataloged. Ask for information. PST-20 Sight Tank with probe and relay box, used with steam oil heaters to detect oil leaks and shut off pump and burner. Ask for Cat. 0-31 Relay box with audible and visual alarm. Ask for Cat. 0-S9 and 0-32 Thermostatic Mixing Valve to be used to blend domestic hot water. Sizes V* in. through 3 in. Ask for Cat. D-10J.