customers give us a 9.1 at WebwinkelKeur- Expert advice.
- 14 days reflection period
- Pay as you wish
- Directly available from stock
Description
The Bonfix 18 litre expansion vessel – 1.0 bar is a high-quality diaphragm expansion vessel specifically designed for closed central heating systems. By effectively absorbing pressure fluctuations that occur when the heating water expands, this expansion vessel ensures the safe, reliable and efficient operation of your heating installation.
With a pre-charge pressure of 1.0 bar, this expansion vessel is suitable for most standard central heating systems in residential properties and smaller commercial buildings. The vessel has a maximum working pressure of 3 bar, allowing safe use in common heating systems and modern boilers.
The vessel is equipped with a high-quality flexible rubber diaphragm and a robust steel housing. This combination guarantees long service life, stable performance and consistent operation under varying working conditions.
The 3/4 inch male thread connection ensures easy and secure installation on standard central heating pipework.
Compliant with CE regulations, this expansion vessel meets current European safety and quality standards.
The Bonfix 18 litre expansion vessel is widely used in boiler systems, underfloor heating systems, pellet boiler installations and other closed heating circuits where reliable pressure compensation is essential for stable performance and long-term durability.
Benefits of the Bonfix Expansion Vessel
- Reliable diaphragm expansion vessel for closed central heating systems
- Maximum working pressure of 3 bar for safe and stable operation
- 3/4 inch male thread connection for easy installation
- Compatible with standard central heating pipework and accessories
- Suitable for boiler systems and underfloor heating
- Extends the service life of boilers and system components
- Stable pressure control during temperature fluctuations
- Complies with European CE standards
- Trusted Bonfix quality
Applications
The Bonfix 18 litre expansion vessel is ideal for use in:
- Central heating systems
- Underfloor heating systems
- Closed heating circuits
- Pellet boiler installations
- Small commercial buildings
- Pellet stove systems connected to central heating
Installation and Connection
The expansion vessel features a 3/4 inch male thread connection and can be easily installed on standard central heating pipework. Thanks to the standard connection, it is compatible with commonly used accessories such as an expansion vessel connection fitting, expansion vessel wall bracket (console), or a combined connection fitting with integrated wall bracket.
For safe and correct installation, the expansion vessel should be installed in accordance with applicable installation regulations. If in doubt, installation by a qualified heating engineer is recommended.
Why Choose Bonfix?
Bonfix is known for reliable quality and durable solutions for heating installations. This expansion vessel meets high technical standards and is suitable for both new installations and replacement of existing expansion vessels.
Specifications
| Article number | 99060 |
| EAN nummer | 8717845990602 |
| Nominal diameter | DN20 |
| Color | Red |
| Finish | Epoxy-coated steel |
| Brand | BONFIX |
| Model | expansion vessel |
| Connection | R (external thread) |
| Application | Heating |
| Material | steel rubber |
| Certification | ce |
| Max. operating temperature | 0 - 120°C |
| Max. operating pressure | 3 bar |
| Diameter | 308 mm |
| Height | 420 mm |
| Volume | 18 liter |
| Collecties 2 | central heating expansion vessels |
| Pre-charge pressure | 1.0 bar |
| Thread size | 3/4 inch |





