Document 3e1KJmeVN8xkDBxqjzndarGyy

C. A. Dunham Company Type V Unit Heater Type C Unit Heater Type R Unit Heater Heating Systems o5?ers UNIT HEATERS--Type V- Horizontal Discharge. 11 sizes for any job. Capaci ties at 2' lb steam, 60F entering air: 10.500 to 360,000 Btu per hour. UNIT HEATERS---Type C- Vertical Discharge. Four types of diffusers. Made in 7 sizes. Capacities at 2 lb steam, 60F entering air: 28,800 to 492,000 Btu per hour. UNIT HEATER--Blower, Type R. 5 different types of mountings for floor, wall, ceiling, inverted or platform. Mix ing dampers, by-pass dampers, filter sections available. Capacities at 2 lb steam, 60F entering air: 58,000 to 822.500 Btu per hour. UNIT HEATERS--Gas-Fired and Duct Furnaces. One-piece, gas-tight alu minized steel combustion chamber and heat exchanger. Made in 8 sizes for 50,000 to 230,000 Btu per hour input. VACUUM PUMPS--Pull and maintain, at low amperage, up to 26 in. vacuum without dependence on close clearances. Only ONE principal moving part. Single motor easily handles BOTH air and con densate removal. Low 9t-in. return line connections. Full range of sizes from 2,500 to 65,000 EDR, both single or duplex units. CONDENSATION PUMPS--Redesigned pumps feature new mechanical seal that eliminates stuffing box packing worries. Capacities up to 50,000 EDR at 20 lb discharge pressure. Single and duplex models. ModelCS Vacuum Hump 1542 Type CH V Condensation Pump C. A. Dunham Co. Heating Systems vS?s'"d No. 7(0 Radiator Vahx Na. (00 Radiator Valve Types OB and OBS Bucket Traps Type 11(0 Radiator Valve No. 600 Radiator Valve RADIATOR TRAPS--For all types of low pressure steam heating systems. Body and cover of cast bronze, disc of Monel metal. Available in 6 patterns. Capacities from 200 to 700 EDR. THERMOSTATIC TRAPS--Trap has , cast brass body and cover; replaceable stainless steel valve and seat; disc of Monel metal. For 5 to 100 lb working firessures. 'Capacities from 125 to 4,500 b of condensate per hour. FLOAT AND THERMOSTATIC TRAPS --Use as drip trap for steam mains, unit heaters, heat exchangers. Float, copper; float valve and seat. Monel metal. Up to 15 psi gage working pressure. Sizes: %, 1, 1)4, \]4 and 2 in. with capacities from 100 to 5,750 lb of condensate per hour. INVERTED BUCKET TRAP--Body and cover of high tensile iron castings. Valve and seat (renewable and inter changeable) are specially hardened, cor rosion-resistant steel. Operating pres sures 20 to 150 lb gage. Sizes )4, Vi, 1 and 1)4 in. Capacities from 220 to 5,600 lb of condensate per hour. SPRING PACKED VALVES--For lowpressure systems up to 15 lb. Heavy coil spring keeps packing tight around valve stem. Body and bonnet, cast brass. Sizes: 54 to 2 in." in 4 body patterns. PACKLESS VALVES--Packless con struction (no packing spring or stuffing box) provides tight permanent seal. Sizes:)4 to 1)4 in. in 4 Body patterns. HOT WATER VALVES A complete line of Dunham Circulator Valves, Balancing ElbowB and Fittings, Vent Tees and Union Elbows and Con nectors are now available. PACKED STEM VALVES--For lowpressure steam systems and hot water systems up to 60 lb. Cast brass body and bonnet. Sizes: )4 to2 in. DUNHAM HEATING SYSTEMS VARI-VAC DIFFERENTIAL HEATING saves up to 40 per cent on fuel because Vari-Vac automatically provides the exact amount of heat needed by using a con tinuous flow of sub-atmospheric steam at temperatures that vary with the weather. METRO single-riser method of piping, costs less to install and maintain. Provides continuous path for flow of steam from top to bottom of building. Con tinuous pipe runs down through overlying rooms and is offset into each room into Convectors or Baseboard radiation. The C. A. Dunham Company manufactures a complete line of quality steam and hot water heating equipment. For catalogs and literature write: Dept. HVAC-54, C. A. Dunham Co., 400 W. Madison St., Chicago 6, 111., or see your local Dunham Sales Engineer. 1543