25 litre diaphragm expansion vessel - 1.5 bar pre-charge - Gitral model: mb25
25 litre diaphragm expansion vessel - 1.5 bar pre-charge - Gitral model: mb25
Standard 25L Wall-Mounted Expansion Tank – Closed-Circuit Heating
Description
The 25-liter wall-mounted expansion tank is designed for closed-circuit heating systems. It effectively absorbs the increase in volume of the heating fluid due to temperature rise, thus protecting the entire system from overpressure.
Ideal for residential or collective closed circuits, this expansion tank guarantees safety, reliability, and durability thanks to its NF-certified manufacturing in France. Before commissioning, the pressure must be adjusted according to the installation's specific requirements.
Technical Specifications
- Capacity: 25 liters
- Operating temperature: 0°C to 99°C
- Service pressure: 1.5 bar
- Maximum admissible pressure: 3 bars
- Connection: 3/4" male thread (20x27)
- Installation: Wall-mounted
- Certification: Made in France – NF mark
Advantages
- Compensates for variations in heat transfer fluid volume
- Protects the heating circuit against overpressure
- Easy wall-mounted installation
- Complies with French quality standards
Usage Tips
Check and adjust the initial pressure before commissioning. Installation must be carried out by a professional in accordance with current regulations.
🛠️ Troubleshooting FAQ: Expansion Tank
How do I know if my expansion tank is dead?
If your boiler builds up too much pressure when heating, or if you frequently have to add water, your tank is likely deflated or its diaphragm is punctured.
Is it already pre-pressurized upon purchase?
Yes, the Gitral MB25 is delivered pre-pressurized from the factory. However, we recommend checking the inflation pressure (generally between 0.5 and 1.5 bar depending on your installation) before commissioning.
Is the MB25 model compatible with all boilers?
It is universal for closed heating circuits. Simply verify that the threading (3/4") and volume (25L) match your current installation.
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