Geothermal manifold chambers
GN R Medium
2 to 8-port manifold chamber
Options: Anti-flotation protection, line regulating valves
Overview - our geothermal manifolds / manifold chambers
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| Description | GN Box Mini | GN R Mini | GN R Kompakt | GN R Medium | GN 1 | GN 2 | GN 3 | GN X1 | GN X2 | |
| Number of ground loop circuits | 2 to 4 ports | 2 to 3 ports | 2 to 6 ports | 2 to 8 ports | 2 to 16 ports | 2 to 24 ports | 20 to 100 ports | 2 to 24 ports | 2 to 44 ports | |
| Dimensions (mm) |
Diameter / L x W | 620 x 420 | Ø 510 | Ø 600 | Ø 800 | 1.156 x 856 | 1.556 x 1.156 | 3.064 x 2.147 | 2.060 x 1.400 | 3.040 x 1.400 |
| Height | 460 | 715 | 850 | 1.150 | 1.150 | 1.150 | 1.867 | 1.580 | 1.580 | |
| Chamber cover |
Load class | not walkable | A 15 | A 15 / A 35 | A 15 / A 35 | A 15 | A 15 | A 15 | A15/A35/B125/D400 | A15/A35/B125/D400 |
| Telescopic cover | - | - | ○ | ○ | ○ | ○ | ○ | ■ | ■ | |
| Connection diameter (mm) |
Ground loops | Ø 32 to 50 | Ø 32 to 50 | Ø 25 to 50 | Ø 25 to 50 | Ø 25 to 50 | Ø 25 to 50 | Ø 25 to 63 | Ø 25 to 63 | Ø 25 to 63 |
| Heat pump | Ø 40 to 63 | Ø 40 to 63 | Ø 40 to 75 | Ø 40 to 110 | Ø 40 to 160 | Ø 40 to 160 | Ø 40 to 250 | Ø 40 to 225 | Ø 40 to 225 | |
| Manifold series | Type: I | Type: I | Type: I, L | Type: I, L | Type: I, L | Type: I, L, U | Type: I, L, U | Type: I, L, U | Type: I, L, U | |
| with verifiable structural calculation | - | - | - | - | - | - | - | ■ | ■ | |
| Installation in foundation slab | - | - | ○ | ○ | - | - | - | ■ | ■ | |
| Option | Anti-flotation protection | - | - | - | - | - | - | - | ○ | ○ |
| Main isolation valve | - | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | |
| Circuit balancing valves | - | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | |
| Lifting eyes | - | - | ○ | ○ | ○ | ○ | ○ | ■ | ■ | |
| Strainer | - | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | |
Manifold chambers & brine manifolds: Innovative PE chambers for modern geothermal systems
GNV GmbH is a global leader in the field of geothermal technology and geothermal components and continues to set new standards in the industry. With high-quality manifold systems and manifold chambers made of PE plastic, the company offers innovative solutions that are outstanding in terms of both functionality and cost-effectiveness. Our systems impress with a maximum load capacity of up to 40 tonnes and at the same time offer optimum accessibility for maintenance work.
The pre-assembled components enable quick installation on site and at the same time guarantee the highest quality in long-term operation. Continuous product development ensures that GNV GmbH always produces the world’s highest quality plastic manifold chambers and manifold systems, which are known for their durability, resilience and energy efficiency.
With a clear focus on delivery speed, GNV GmbH ensures that its customers are always supplied with the required products promptly – an important factor in optimising construction times and avoiding project delays. Thanks to the rapid availability of our products, we can guarantee the efficient realisation of your geothermal projects.
Trust in the expertise of GNV GmbH for innovative, cost-efficient and sustainable solutions in geothermal technology. Our products not only offer you the highest quality, but also a long service life and cost-effectiveness. Trust in GNV GmbH for your geothermal systems and benefit from solutions that fulfil the highest demands.
Innovative manifold chambers for geothermal systems: World leader in quality and technology
With the latest generation of manifold chambers and geothermal manifolds, we are setting new standards in the integration of geothermal probes into heat pump systems. We are a world leader, particularly in large-scale projects - our manifold chambers achieve a load class of up to D400 and offer unrivalled performance and reliability.
Our manifold systems benefit from a highly automated production process that guarantees perfect harmonisation of all components. This results in minimised pressure losses and the outstanding efficiency of our plastic manifold systems. This innovative technology ensures that your geothermal system achieves maximum heat yield with minimum energy loss.
We are the only company in the world to offer the option of welding brine manifolds to standard, which enables us to guarantee absolute tightness and an extremely long service life for our systems - even under difficult conditions. This unique technology ensures reliable, long-term maintenance-free operation and protects your geothermal installation from expensive repairs.
Manifold chambers for geothermal systems
Our manifold chambers for geothermal systems offer customised solutions for all geothermal technology requirements. Whether for a detached house or sophisticated, complex geothermal projects – we offer you the right manifold systems for efficient heat pump systems. Our modern manifold chambers are equipped with innovative technologies and are characterised by high load-bearing capacity, long-term reliability and excellent energy efficiency. They offer the ideal solution for your geothermal installation and ensure efficient utilisation of your geothermal system for years to come.
Thanks to our flexible system solutions, you can integrate both simple and advanced manifold systems that are perfectly customised to your individual geothermal projects. Trust in our high-quality manifold chambers, which offer optimum performance for every type of geothermal installation – from private house construction to large-scale commercial geothermal systems.
Our manifold chambers not only ensure easy installation, but also long-lasting performance that ensures long-term reliability. With guaranteed watertightness, ease of maintenance and inspection, they offer the perfect solution for your geothermal installation, even in demanding conditions. Choose our technologically advanced manifold chambers for your geothermal projects and benefit from a cost-effective, sustainable and efficient solution.
System integration and technical innovation in the manifold chamber / geothermal manifold for geothermal systems
Today, modern manifold chambers and geothermal manifolds have to do far more than just distribute the brine in the geothermal system. As the central control and connection point between the geothermal probes and the geothermal heat pump, our manifold chambers play a key role in the efficiency of your geothermal system. With precise plastic control valves, we enable exact adjustment of the ground loop circuits to ensure optimum energy yield and therefore maximum energy efficiency.
Thanks to our innovative welding process for the manifold systems, we guarantee minimal pressure loss, which makes the entire geothermal system more efficient and powerful. This leads to a significant increase in system performance and a reduction in operating costs in the long term.
Despite the high degree of standardisation of our systems, GNV GmbH remains flexible and specialises in responding to individual customer requirements. Highly complex control valves, such as balancing valves or pressure-independent control valves, can be easily integrated into the manifold chambers. This allows us to offer you customised solutions for every geothermal installation.
For quick installation and maximum efficiency, we also offer the option of easily integrating measuring devices such as thermometers, pressure gauges and quick air vents. This reduces installation times and ensures that your geothermal heating system works efficiently right from the start.
Trust in our innovative system integration for manifold chambers and geothermal manifolds, which not only offer you the highest quality and durability, but also optimised energy efficiency for your geothermal systems.
Pioneering manifold systems for geothermal systems
The new generation of manifold chambers and geothermal manifolds sets higher standards in economic efficiency and sustainability. Thanks to an innovative design, not only is material saved, but the costs for geothermal systems are also significantly reduced. These savings make geothermal heating even more environmentally friendly and at the same time help to reduce operating costs. The result: a geothermal heat pump pays for itself much more quickly compared to other heating systems such as air heat pumps or gas heating systems.
We use high-quality PE material to manufacture our manifold chambers, which guarantees exceptional durability and resistance. These plastic manifold chambers are so robust that they have a service life of over 50 years. This longevity reduces the need for maintenance work and makes the system a particularly economical solution for your geothermal installation.
Even after the end of the life cycle of a geothermal heating system, our system remains sustainable: almost all components of our manifold chambers can be easily recycled and returned to the material cycle, further minimising the ecological footprint.
Rely on the pioneering technology of our manifold chambers and geothermal manifolds and benefit from a sustainable, cost-efficient and long-lasting solution for your geothermal heating system.
Geothermal manifold chambers
The geothermal manifold chamber makes it possible to install the heart of the geothermal system, the manifold, outside the building. This avoids having to run unnecessary pipes into the building. Instead of in the building, the hydraulic balancing is carried out in the geothermal manifold chamber. As with the manifold in the house, maintenance of each individual ground loop can also be carried out without any problems.
Cost savings for the customer
Both during installation and later during operation, the end customer saves a lot of money thanks to the geothermal manifold chamber. The ground loop connections do not have to be led into the building, eliminating the need for core drillings. In addition, you can forego the construction of a cellar in a new building. An already existing mechanical room can also be used for other purposes.
Easier maintenance of the geothermal system
The geothermal manifold chamber is a great relief for the heating installer. This makes maintenance on the machine much easier and quicker. The installation is uncomplicated, as the entire technology is located in the manifold chamber. If a geothermal heat pump is not running optimally, it is easy to check in the manifold chamber whether the settings can be optimized for better performance.
