Multi Column Tanks
Multi-Column Tanks
The Cost-Effective Choice in Most Circumstances
Among elevated steel water tanks, a multi-column (or multi-leg) design is the most cost-effective choice in most circumstances. The tank consists of a welded steel container supported by multiple welded steel legs, perimeter columns, and a central welded steel riser. These are reinforced with horizontal struts and diagonal bracing rods.
Most multi-column designs also feature an exterior balcony, a structural member that allows easier inspection and maintenance of the tank container. Multi-column tanks are typically preferred in areas of high wind and/or seismic activity.
Double Ellipsoidal Tank Standards
| Tank Capacity | Tank Diameter | Head Range | Minimum Riser Diameter | DWG file | PDF file |
|---|---|---|---|---|---|
| 30,000 | 22′-0″ | 12′-0″ | 3′-0″ | 30 MG | 30 MG |
| 35,000 | 22′-0″ | 13′-5″ | 3′-0″ | 35 MG | 35 MG |
| 40,000 | 22′-0″ | 15′-6″ | 3′-0″ | 40 MG | 40 MG |
| 50,000 | 22′-0″ | 18′-10″ | 3′-0″ | 50 MG | 50 MG |
| 60,000 | 22′-0″ | 22′-6″ | 3′-0″ | 60 MG | 60 MG |
| 75,000 | 30′-0″ | 16′-0″ | 3′-0″ | 75 MG | 75 MG |
| 100,000 | 30′-0″ | 21′-0″ | 3′-0″ | 100 MG | 100 MG |
| 125,000 | 30′-0″ | 25′-8″ | 3′-0″ | 125 MG | 125 MG |
| 150,000 | 32′-0″ | 28′-0″ | 3′-0″ | 150 MG | 150 MG |
Toro Ellipsoidal Tank Standards
| Tank Capacity | Tank Diameter | Head Range | Minimum Riser Diameter | DWG file | PDF file |
|---|---|---|---|---|---|
| 175,000 | 36′-0″ | 25′-0″ | 4′-0″ | 175 MG | 175 MG |
| 200,000 | 36′-0″ | 28′-3″ | 4′-0″ | 200 MG | 200 MG |
| 250,000 | 40′-0″ | 28′-4″ | 4′-0″ | 250 MG | 250 MG |
| 300,000 | 43′-0″ | 29′-8″ | 4′-0″ | 300 MG | 300 MG |
| 350,000 | 43′-0″ | 34′-4″ | 4′-0″ | 350 MG | 350 MG |
| 400,000 | 50′-0″ | 30′-5″ | 5′-0″ | 400 MG | 400 MG |
| 500,000 | 50′-0″ | 37′-3″ | 5′-0″ | 500 MG | 500 MG |
| 500,000 | 56′-0″ | 30′-0″ | 5′-0″ | 500 MG | 500 MG |
| 600,000 | 56′-0″ | 35′-6″ | 5′-0″ | 600 MG | 600 MG |
| 750,000 | 60′-0″ | 38′-7″ | 8′-0″ | 750 MG | 750 MG |
| 750,000 | 65′-0″ | 34′-0″ | 8′-0″ | 750 MG | 750 MG |
Toro Spherical Tank Standards
| Tank Capacity | Tank Diameter | Head Range | Minimum Riser Diameter | DWG file | PDF file |
|---|---|---|---|---|---|
| 750,000 | 70′-2″ | 30′-0″ | 8′-0″ | 750 MG | 750 MG |
| 1,000,000 | 75′-0″ | 35′-0″ | 10′-0″ | 1,000 MG | 1,000 MG |
| 1,000,000 | 80′-0″ | 30′-0″ | 10′-0″ | 1,000 MG | 1,000 MG |
| 1,500,000 | 91′-0″ | 35′-4″ | 12′-0″ | 1,500 MG | 1,500 MG |
| 2,000,000 | 105′-0″ | 34′-9″ | 12′-0″ | 2,000 MG | 2,000 MG |