Document oD8ZeDyeLM32an7nNboVJbw3g

Pumps Yoono Pomp fioMaanf Dunham Building--450 East Ohio Street, CHICAGO, ILLINOIS , Factory Michigan City, Indiana Agencies in: All Principal Cities in U. S. Canadian Office and Factory C. A. Dunham Co., Ltd.. 1523-41 Davenport Road, Toronto, 4, Ontario THE YOUNG CENTRIFUGAL VACUUM AND BOILER FEED PUMP Patented December 10, 1918 The Young Pump is a reliable Vacuum System pump for handling both gases and liquids efficiently. The units are completely assembled (including electrical equipment) at the factory and tested before shipment. They are ready to run when the feed wiring is connected to the unit. The unit consists of a Centrifugal Pump, bronze fitted, of enclosed impeller and high efficiency type, an approved make of motor and electrical equipment, mounted with a heavy welded tank on a substantial cast iron base. The motor used is of 40 rating, of more than ample power for the maximum load that will come on the unit. A safety factor insuring freedom from motor trouble. All Standard Units are built to discharge against a pressure of 20 pounds at the pump, except the Standard Unit VOA which is built to discharge against 18 pounds pressure at the pump. Special pumps can be furnished to discharge against 35 pounds pressure at the pump. . Both the standard and special units are furnished for either continuous or automatic control operation. TABLE OF CAPACITIES Size Sq. Ft. of Direct Radiation Horsepower of Motor Normal Power Load Water Capacity C. P. M. Air Capacity Cu. Ft. Size of Suction Size of Discharge 'Approx. Shipping Weight, lbs. VOA 5.000 V* .6 8 4.5 i% i /* 750 VIA 8,000 1 .8 12 6.0 I'/i f/i 900 V2A 16.000 I'/j 1.3 25 9.8 Wi 2 950 V3A 26,000 2 1.8 40 16.0 2 2/2 1,100 V4A 40,000 3 2.7 70 20.0 Wi 3 1,200 V5A 65,000 5 4.1 100 32.0 3 3 1,250 V6A 100,000 m 6.8 160 50.0 5 3'A 1,670 Crated F.O.B. Michigan City. Indiana. 478 Young Pump Company Pumps The capacity rating in square feet of equivalent direct radiation given in the table is for a properly laid out and equipped vacuum system that is tight. The air capacities are ample and standardized to produce under these conditions 10 inches of vacuum with reasonably tight vacuum traps, and temperature of returns not to exceed 180 deg. Fahr. The principle of the YOUNG ACCUMULATOR TANK vacuum producing element is the oldest and most efficient in practice--that of the ejector. Whenever DischargcIo Boiler the pump is in operation, water is supplied under pressure to the ejector noz zle, which causes the ejector to pull a strong suction on the return line of the heating system. This suc tion produced by the ejector WxrtR Supply- is particularly positive. Where the returns come hack at a low level an accu mulator tank is recom mended in preference to an ordinary lift connection, with all the returns gravita ting into it. The accumulator tank is Tjk-frss oSCMBl Connections to Young Vacuum Pump and Accumulator Tank equipped with a float switch control wired to the other control. Air and the water of condensation flow into the accumulator tank from which they are pumped by the pump unit. Should the YOUNG CONDENSATION PUMP AND RECEIVER accumulator tank fill with water, the float control will function whether or not there is vacuum on.the re turn line of system. The snap switch between the vacuum regulator and starter can be used thus operating the pump as a condensation pump and re ceiver. This insures water being returned to the boiler at all times. A Complete and Assembled Unit Ready for Piping and Wiring Connections This accumulator tank equipment is particularly valuable where blast or other radiation is at a low level which must always be drained when vacuum is hot required on other parts of the system. 479