Document yqjZkdq7VkBQEmR5V2w9GoJV

Boilers Weil -McLain S C I E N X I F I C COMBUSTION B OILERS .WEIL-McLAIN COMPANY--Michigan City, Ind. -- Chicago, 111 The Weil-McLain ROUND TYPE BOILER with its COR RUGATED FUEL-SAVING HEATING SURFACES and its long "back and forth" fire travel embraces the newest and best conceptions of heating engineers. Other points of merit in the Weil-McLam Round Type Boiler are: fire-pot and crown sheet cast separately to permit easier handling; large fire door; handy front clean-out doors in every section and triangular type grates which cut and shake out all ordinary clinkers. STEAM Size Rating Boiler : Sq. Ft. WATER Size ' Boiler Rating Sq. Ft. Actual Diam. Grate and Fire Pot Inches (Both Steam and Hot Water) 5-S-17 S-S-19 S-S-22 5-S-25 5-S-28 5-S-31 6-S-17 6-S-I9 6-S-22 6-S-25 6-S-28 6-S-31 395 480 660 865 1065 1350 410 500 695 915 1130 1425 5-W-17 5-W-19 5-W-22 . 5-W-25 5-W-28 5-W-31 6-W-17 6-W-19 6-W-22 6-W-25 6-W-28 6-W-31 650 795 1090 1430 1760 2225 - 675 825 1145 1510 1865 2350 17 19 22 25 28 31 17 22 25 28 31 NOTE: Table is not complete; these boilers are also made four section. The Weil-McLain SECTIONAL or SQUARE TYPE BOILER like the Round Type has corrugated heating surfaces directly above the fire, has a long "back and forth" fire travel--features that add greatly to the efficiency and economy of this boiler. Number 22-W-5 22-W-6 22-W-7 25-W-5 25-W-6 25-W-7 25-W-8 28-W-5 28-W-6 28-W-7 35-W-5 36-W-6 36-W-7 36-W-8 36-W-9 WATER Water Rating Sfl.Ft 1500 1825 2150 1825 2225 2650 3050 2700 3275 3850 4425 3850 4725 5600 6475 7350 Trial length Area Inches Sq. Ft 51 4.88 58 5,96 65 7.03 51 5.70 58 6.90 65 8.10 72 9.30 63 7.97 72 9.72 81 11.47 90 13.22 66 10.25 75 12.50 84 14.75 93 17.00 102 19.25 Noober 22-S-5 22-S-6 22-S-7 25-S-5 25-S-6 25-S-7 25-S-8 28-S-5 28-S-6 28-S-7 28-S-8 36-S-5 36-S-6 36-S^7 36-S-8 36-S-9 STEAM Steao Rating Sq. Ft 900 1100 1300 1100 1350 1600 1850 1650 2000 2350 2700 2350 2875 3400 3925 4450 Total Length Inches 51 58 65 51 58 65 72 63 72 81 90 66 75 84 93 102 Water line todies 46 46 46 51 51 51 51. 55 55 55 55 58 58 58 58 53 Orate Area Sq. Ft .N (Steao udWater) 4.88 5.96 7.03 .5.70 8.10 9.30 7.97 9.72 11:47 13.22 10.25 12.50 14.75 17.00 19.25 NOTE: Table is not complete; this type boiler is'also made in a 48* size. 350, Boiler, Feeder McDonnell & Miller General Offices: Wrigley Building Eastern Warehouse Stock CHICAGO Bush Terminal, N. Y. `"Doing One Thing Well" The Only Exclusive Manufacturer of Water Feeders I! Products: McDONNELL & MILLER DUPLEX WATER FEEDERS The McDonnell & Miller Duplex Water Feeder is a simple and positive means of controlling the water line in low-pressure steam boilers, automatically supplying make-up water as necessary, and protecting the boilers against flooding by disposing of excess condensate which may be returned from the system. It is a completely self-contained unit, consisting of two carefully designed floatoperated valves, placed in the head and enclosed in a suitable receiver. By means of steam and water equalizing connections in the head, boiler conditions are main tained in the receiver of the feeder itself. Variations in boiler water line are accu rately followed. The city water supply connection is also in the head and admits make-up water to the feeder through an integral. strainer of large capacity. All pipe connections are so arranged in the head that working parts may be inspected . by removing the receiver without breaking a single pipe connection. Service--The McDonnell { &.' Miller Duplex Water Feeder may be applied to all low-pressure steam boilers, maximum pressure 15 lbs., and is suitable for use under all city water pressures up to ilO lbs. It is particularly adaptable to oil fired boilers where the quick, intense heat of the oil burner causes rapid fluctuations in boiler water line, and where the auto matic oil burner controls encourage care lessness of boiler water line. It is also essential protection where lowpressure steam boilers depend on elec trically driven pumps for the return of condensation from the system, for, in case of pump or current failure it will supply adequate make-up water from the city mains. McDonnell & Miller Duplex Water Feeders are- protection against burned boilers and cracked sections, By main taining a normal water line at all times, they also assure more uniform steaming and better boiler performance. 351