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The circular steel tank with liner is a modular structure designed for the farming of fish and other aquatic species in controlled environments. It is used in freshwater aquaculture facilities.
Metallic circular tanks [freshwater]
The circular steel tank with liner is a modular structure designed for the farming of fish and other aquatic species in controlled environments. It is used in freshwater aquaculture facilities.
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Sturdy circular tanks made of galvanized steel sheet with EPDM liner (standard 1.0 mm) or butyl, freshwater version, designed for installation on a concrete platform or half-buried in the ground. Optional accessories include wall penetrations, drains, and covers.
Metal variants:
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Galvanized steel (freshwater)
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Double-sided electrostatic coating (seawater)
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EPDM or butyl (food-grade quality)
| Models | Reference | Article | Vol.
~m³ |
ø A (mm) |
Height B | Weight (kg) |
| 1 | B0442100 | 12/1 | 8.0 | 3690 | 810 | ~110 |
| 2 | B0442200 | 15/1 | 12.5 | 4600 | 810 | ~140 |
| 3 | B0442300 | 18/1 | 18.0 | 5530 | 810 | ~175 |
| 4 | B0442400 | 21/1 | 25.0 | 6450 | 810 | ~210 |
| 5 | B0442500 | 24/1 | 32.0 | 7380 | 810 | ~250 |
| 6 | B0442600 | 30/1 | 50.0 | 9220 | 810 | ~340 |
| 7 | B0442700 | 36/1 | 75.0 | 11110 | 810 | ~430 |
| 8 | B0443100 | 12/2 | 16.0 | 3690 | 1520 | ~210 |
| 9 | B0443200 | 15/2 | 25.0 | 4600 | 1520 | ~270 |
| 10 | B0443300 | 18/2 | 36.0 | 5530 | 1520 | ~330 |
| 11 | B0443400 | 21/2 | 50.0 | 6450 | 1520 | ~390 |
| 12 | B0443500 | 24/2 | 65.0 | 7380 | 1520 | ~450 |
| 13 | B0443600 | 30/2 | 100.0 | 9220 | 1520 | ~640 |
| 14 | B0443700 | 36/2 | 148.0 | 11110 | 1520 | ~790 |
Technical Features:
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Shape: Circular
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Structure:
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Rigid walls made of galvanized or stainless steel (corrosion-resistant)
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Standard height: 1 to 1.5 m (customizable)
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Diameter: ranges from 2 to 20 meters or more, depending on required capacity
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Inner Liner:
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Made of PVC, EPDM, or HDPE (high-density polyethylene)
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UV, chemical, and abrasion resistant
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Securely fixed to steel frame
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Replaceable for deep cleaning or wear
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Capacity:
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From a few m³ to several hundred m³
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Example: a tank with 10 m diameter and 1.2 m height holds approx. 94 m³
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Inlet/Outlet System:
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Central drainage for efficient waste removal
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PVC or PE piping for water supply, aeration, and filtration
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Optional Accessories:
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Predator protection nets
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Overflow grates
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Aeration or oxygenation systems
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Temperature, pH, and oxygen sensors
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Advantages:
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Quick and easy to assemble (bolted or clipped structure)
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Long lifespan thanks to durable materials
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Excellent water circulation due to circular shape
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Easy maintenance with removable liner
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Suitable for intensive or semi-intensive fish farming
B0442100