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 seawater aquaculture facilities.
Sturdy circular tanks made of galvanized steel sheet with EPDM liner (standard 1.0 mm) or butyl, seawater version, designed for installation on a concrete platform or half-buried in the ground. Optional accessories include wall penetrations, drains, and covers.
Metal variants:
Galvanized steel
Double-sided electrostatic coating (seawater)
EPDM or butyl (food-grade quality)
| Models | Reference | Article | Vol.
~m³ |
ø A (mm) |
Height B | Weight(kg) |
| 1 | B0446100 | 12/1 | 8.0 | 3690 | 810 | ~110 |
| 2 | B0446200 | 15/1 | 12.5 | 4600 | 810 | ~140 |
| 3 | B0446300 | 18/1 | 18.0 | 5530 | 810 | ~175 |
| 4 | B0446400 | 21/1 | 25.0 | 6450 | 810 | ~210 |
| 5 | B0446500 | 24/1 | 32.0 | 7380 | 810 | ~250 |
| 6 | B0446600 | 30/1 | 50.0 | 9220 | 810 | ~340 |
| 7 | B0446700 | 36/1 | 75.0 | 11110 | 810 | ~430 |
| 8 | B0447100 | 12/2 | 16.0 | 3690 | 1520 | ~210 |
| 9 | B0447200 | 15/2 | 25.0 | 4600 | 1520 | ~270 |
| 10 | B0447300 | 18/2 | 36.0 | 5530 | 1520 | ~330 |
| 11 | B0447400 | 21/2 | 50.0 | 6450 | 1520 | ~390 |
| 12 | B0447500 | 24/2 | 65.0 | 7380 | 1520 | ~450 |
| 13 | B0447600 | 30/2 | 100.0 | 9220 | 1520 | ~640 |
| 14 | B0447700 | 36/2 | 148.0 | 11110 | 1520 | ~790 |
Shape: Circular
Structure:
Rigid walls made of galvanized or stainless steel (corrosion-resistant)
Standard height: 1 to 1.5 m (customizable)
Diameter: ranges from 2 to 20 meters or more, depending on required capacity
Inner Liner:
Made of PVC, EPDM, or HDPE (high-density polyethylene)
UV, chemical, and abrasion resistant
Securely fixed to steel frame
Replaceable for deep cleaning or wear
Capacity:
From a few m³ to several hundred m³
Example: a tank with 10 m diameter and 1.2 m height holds approx. 94 m³
Inlet/Outlet System:
Central drainage for efficient waste removal
PVC or PE piping for water supply, aeration, and filtration
Optional Accessories:
Predator protection nets
Overflow grates
Aeration or oxygenation systems
Temperature, pH, and oxygen sensors
Quick and easy to assemble (bolted or clipped structure)
Long lifespan thanks to durable materials
Excellent water circulation due to circular shape
Easy maintenance with removable liner
Suitable for intensive or semi-intensive fish farming