Document 6B5bKpo1LxbmzdMk8nzJkDrEE

Boiler Feeders McDonnell & Miller Boiler Feeders "Doing one thing well" ^ .General Offices: Wrigley Bldg., Chicago Grand Central Terminal, New York PRODUCTS--McDonnell & Miller McDonnell No. 28 Self-Cleaning Duplex Boiler Single Valve Self- Feeders. McDonnell No. 29 Single Cleaning Feeder Valve Self-Clean- No. 29--This type ing Boiler Feed of feeder is adap ers. McDonnell table for boilers No, 30 Safety that are operated Feeders, for small constantly under a boilers. vacuum, or where Dependable Feed Water Regu lation--McDonnell boiler feeders offer " a simple and posi tive means of main taining the boiler water line in low- Por Medium and Large Boiler, The MeDonneU & Miller Mo. 18 Sdf-Clmr.iny Duplex Feeder pressure boilers. They protect the boiler from the costly repairs and steam is used in process work. It has the same general features and capacity as the self- cleaning duplex .For Process Boilers feeder, except that ' The McDonnell & Miller ' No. 19 Single Valve Feeder it has no overflow valve for draining off surplus. McDonnell No. 30 Safety Feeder--This feeder is designed especially for the smaller size boiler (up to 2000 ft.)--par shut downs that re ticularly oil-fired or gas-fired boilers iii sult when someone forgets the boiler water line. domestic use. It makes a most dependable and eco McDonnell & Miller No. 28 Self-Cleaning nomical safety device for set Duplex Feeder--Used on low- ting at the danger line. In pressure boilers requiring pro this way it takes the place of tection against flooding as the. low-water cut-off and well as low water. It pre removes the disadvantage of. vents flooding by draining off a cut-off--the stopping of the surplus. It also maintains burner with attendant danger the boiler water line above of freezing the system. Its the danger point by supplying For Small Bailer, simplified construction makes make-up water as needed. The MeDonneU & Miller possible a compact unit that -. The entire amount of feedwater for any boiler. up to No. 80 Safely Feeder ls inexpensive to install and troublefree in operation. 20,000 ft. can be supplied by the McDon nell Self-Cleaning Duplex Feeder at 30 lb. differential water pressure. Typical Specifications McDonnell & Miller No. 28 Self-Cleaning Duplex Boiler Feeders--Furnish and install on each (lowpressure heating) boiler, one McDonnell Typical Specifications McDonnell No. 30 Safety Feeder---Furnish and install on each (low-pressure heating) boiler, one McDonnell No. 30 Safety Feeder. . Installation to be made in accordance with diagrams and detailed instruction sheet furnished by the manufacturers. & Miller No. 28 Self-Cleaning Rotary Valve Duplex Boiler Feeder. Rotary Valves to be adjustable to pro vide for a differential of from 1 to 5 in. between feed and overflow levels. Installation to be made in accordance with diagrams and detailed instruction sheet furnished by the manufacturers. Service and Information--The Engi neering Department of McDonnell & Miller offers prompt advisory service to architects, engineers, contractors and . boiler owners, regarding special problems. Descriptive literature giving further details of McDonnell & Miller Boiler Feeders, will be sent on request. 624 Burners, Oil Automatic Burner Corporation 312 North May Street, Chicago, 111. The Automatic Burner Corporation is a pioneer in the development and manu facture of the home rotary, in the ashpit type of oil burner. This principle--be lieved to be the simplest and most efficient for domestic oil burning--was developed in 1920. In one of the industry's best equipped laboratories, thousands of dollars have been spent to perfect ABC Type E and its low priced companion--ABC Type H. ABC Type H The Department of Engineering Research, University of Michigan, made some ef ficiency tests on June 15, 1928, with ABC installed in a DuBrie warm air furnace. ABC developed the high overaH efficiency of 84.44 per cent. ABC Type H^--that duplicates the higher priced Type E in efficiency--is the burner for every man. The installed price is well within range of the low salaried man's purchasing power. Simple, rigidly builC and economical to operate, ABC Type H is guaranteed to satisfy the man who must count his dollars. Write for "OIL HEAT" for The Architect and Engineer-- An authoritative book on Oil Burning. ABC TYPE E ABC TYPE H Maximum Steam Radiation 3000 800 Cross section of ABC Type in a round boiler 625 Price $500 to $1000 $350 to $600 V I