Building and Engineering Catalog 1921 Edition . T—T. DBTA1X No ra—Showing Arrangement of Vacuum Pump wLm turns arc he low the pump. ».— Specify the Dunham Vacuum System using Dunham Packless Radintor Valve andDunham Radiator Trap in the supply (at top) and return (at bottom) connections to andfrom each radiator (of hot water type). Dunham No. 3. 4 or 5 Traps for dripping mains. Dunham Blast Traps for all Blast Coils. Dunham Pressure Reducing Valvesfor reducing the steam pressure or automatically supplementing exhaust Steam, DunhamOil Separator for removing oil from exhaust steam, Dunham

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Building and Engineering Catalog 1921 Edition . T—T. DBTA1X No ra—Showing Arrangement of Vacuum Pump wLm turns arc he low the pump. ».— Specify the Dunham Vacuum System using Dunham Packless Radintor Valve andDunham Radiator Trap in the supply (at top) and return (at bottom) connections to andfrom each radiator (of hot water type). Dunham No. 3. 4 or 5 Traps for dripping mains. Dunham Blast Traps for all Blast Coils. Dunham Pressure Reducing Valvesfor reducing the steam pressure or automatically supplementing exhaust Steam, DunhamOil Separator for removing oil from exhaust steam, Dunham Strainer for keeping dirtand scale from vacuum pump. Dunham Vacuum Pump Govern- >r for automatically startingand stopping the steam-driven vacuum pump to maintain desired amount of vacuum inreturn piping: each and all to be installed in accordance with instructions and standarddetail drawings to be supplied by the C. A. Dunham Co. Ltd. See Dunham Bulletin No. no for full description and application. *?*-•- ? ----- -

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Keywords: ., bookcentury1900, bookdecade1920, bookidbuildingande, bookyear1921