Overview
Duplex 2205 stainless steel tank for commercial hot water, Watermark approved. The Commercial Water Tank is part of Pecol's Storage Water Heaters range (stainless steel tanks for heat pump & solar systems). Size range: 1,000 – 5,000 L.
All details on this page come from the Pecol stainless steel tank catalogue 2026. Download the Stainless steel tank catalogue 2026 (PDF) for drawings and installation notes.
Key features
Duplex 2205 stainless steel
High corrosion resistance and durability, with a thinner, lighter wall than SUS304 at the same pressure.
Energy-efficient insulation
50 mm rigid polyurethane on 800–1,000 L tanks, 75 mm on 2,000–5,000 L tanks.
Multiple heat sources
Optional SUS316L coils let you connect heat pumps, solar or boilers.
100% leakage tested
Every tank is held at 0.8–1.0 MPa for 3 minutes with no bubbles or deformation.
Quality checked
Salt-spray corrosion tests, endoscope inspection after pickling and infrared imaging of the polyurethane foam.
Technical specifications
| Item | 1,000 L | 2,000 L | 3,000 L | 4,000 L | 5,000 L |
|---|---|---|---|---|---|
| Inner diameter (mm) | Ø800 | Ø1200 | Ø1450 | Ø1800 | Ø1900 |
| Outer diameter (mm) | Ø900 | Ø1350 | Ø1600 | Ø1650 | Ø2050 |
| Insulation thickness (mm) | 50 | 75 | 75 | 75 | 75 |
| Height (mm) | 2300 | 2350 | 2500 | 2500 | 2500 |
| Inner tank thickness (mm) | 2.0 | 3.0 | 4.0 | 4.0 | 4.0 |
| Inner tank material | Duplex 2205 | ||||
| Casing | Painted galvanised steel / SUS304 | ||||
| Electric heater | 1.5 kW & 3 kW, 220–240 V 50 Hz 1-phase | ||||
| Exchange coil | SUS316L, 32 / 35 mm | ||||
| Connections | 1", 5/4", 6/4", 2" | ||||
| Working / testing pressure | 0.6 MPa / 1.0 MPa | ||||
Specifications are from the manufacturer's brochure and may change without notice. Please confirm with our engineers before ordering.
Where it is used
- Hotels and hospitals
- Commercial heat pump and solar systems
- Factories and institutions
Commercial Water Tank price and quotation
Prices depend on the size, installation and site conditions, so we quote each project individually. Tell us how many people or rooms you need hot water for, and our engineers will recommend the right model and send you a free quotation.





