Ibaiondo
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What is Ibaiondo and what is it used for in solar and water installations?
The Ibaiondo collection includes expansion vessels and pressure tanks for solar thermal circuits and water pressure systems. Their function is to accumulate the excess volume caused by thermal expansion or pump operation, stabilizing the circuit pressure and protecting components such as valves, heat exchangers, and pipes. They are key elements to achieve comfort, hydraulic safety, and system durability.
Advantages and limitations
- High-quality membranes for long service life and minimal permeability.
- Robust housings and anti-corrosion treatments; suitable for continuous operation.
- Vertical and horizontal versions (e.g., series for hydropneumatic systems) that facilitate integration in technical rooms.
- Limitations: select appropriate volume, precharge pressure, and thermal range; check fluid compatibility (water/glycol) and whether a potable membrane is required.
Applications
- Solar thermal systems: absorption of expansion due to increased temperature of glycol/water.
- Pressure and pumping groups: accumulation to reduce starts, dampen water hammer, and stabilize the network.
- Tanks and accumulators: volume compensation in DHW or closed-loop climate control circuits.
How to choose your Ibaiondo expansion vessel
- Usable volume: calculate based on circuit volume, fluid expansion coefficient, and temperature/pressure variation (choose a safety margin).
- Precharge pressure: adjust to the system's static pressure; check and correct during commissioning.
- Maximum working pressure: must exceed the safety valve set pressure.
- Thermal range and membrane type: water/glycol and, if applicable, suitable for potable water.
- Orientation and installation: horizontal or vertical model, connection (thread), supports, and accessibility for maintenance.
Indicative specifications
| Available capacities | ~20–100 L (see each model's datasheet) |
| Orientation | Horizontal or vertical depending on reference |
| Fluids | Water or water/glycol (solar thermal) |
| Working pressure | Check model; oversize compared to the safety valve |
| Connection | Standard internal thread (size according to capacity) |
| Maintenance | Valve for precharge check and membrane accessibility |
Best practices
- Calculate the required volume with a margin; in solar thermal systems, consider stagnation and maximum fluid temperature.
- Adjust the precharge before filling the circuit and check it periodically.
- Install in an accessible area, with isolation and drain valves for maintenance.
- Combine with pump accessories (pressure gauges, pressure switches, check valves) for stable control.
Comparisons and quick selection
- Solar thermal: prioritize membrane resistant to high temperatures and compatibility with glycol.
- Pressure group: choose a horizontal pressure tank with sufficient volume to reduce pump starts.
- DHW/Climate control: models with a membrane suitable for potable water when applicable.
Related collections
With Ibaiondo you ensure stable pressure, protect the installation, and extend the service life of pumps and components, both in solar circuits and in pressurized water systems.
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