Pump groups, collectors
Viessmann Hydraulic Separator GMA411
The Viessmann GMA411 is a high-quality hydraulic separator, designed to hydraulically decouple the primary and secondary circuits in modern heating systems. It ensures stable flow rates, prevents hydraulic interference, and optimizes energy efficiency in systems with multiple heating circuits or complex configurations.
Thanks to its compact and fully insulated design, the GMA411 reduces heat losses, simplifies system operation, and protects pumps and heat generators from flow-related stresses.
Key Features and Benefits
✔ Hydraulic decoupling – Balances primary and secondary circuits
✔ Optimized flow stability – Improves system performance
✔ Fully insulated – Minimizes thermal losses
✔ Robust and corrosion-resistant construction – Long service life
✔ Compact design – Easy to install in technical rooms
✔ Compatible with Viessmann system components
Viessmann GMA411 guarantees optimal hydraulic balance, system protection, and energy-efficient operation in heating systems of any size.
Viessmann 2-Branch Collector GMA 421
The Viessmann GMA 421 is a high-quality 2-branch hydraulic collector, designed for the distribution of heating circuits in multi-circuit systems. It enables optimal hydraulic balancing between different heating loops, ensuring efficient and reliable operation of modern heating installations.
The compact and insulated design minimizes heat losses, while its robust construction ensures long service life.
Key Features and Benefits
✔ 2-branch design – Ideal for systems with two heating circuits
✔ Hydraulic balancing – Stable and efficient heat distribution
✔ Fully insulated – Reduces energy losses
✔ Robust construction – Long-lasting and corrosion-resistant
✔ Compact design – Easy to integrate into system layouts
✔ Compatible with Viessmann heating technology
Viessmann GMA 421 provides efficient circuit management, improving the performance and energy savings of your entire heating system.
Viessmann 3-Branch Collector GMA 431
The Viessmann GMA 431 is a high-quality 3-branch hydraulic collector designed for efficient distribution of heating circuits in modern multi-zone heating systems. It ensures perfect hydraulic balancing, improves heat distribution efficiency, and supports energy-saving operation.
Its compact and fully insulated design minimizes heat losses, while robust construction ensures long-term durability and reliable performance.
Key Features and Benefits
✔ 3-branch design – Suitable for managing three heating circuits
✔ Efficient hydraulic balancing – Ensures even and stable heat distribution
✔ Fully insulated housing – Reduces thermal losses and improves efficiency
✔ Durable construction – Corrosion-resistant and long service life
✔ Compact structure – Easy to integrate into technical spaces
✔ Compatible with Viessmann heating systems
Viessmann GMA 431 guarantees efficient operation and improved reliability for multi-circuit heating systems.
Viessmann Pump Group without Mixer GDA2 DN25 / Wilo PARA 25/6
The Viessmann Pump Group GDA2 DN25 with the high-efficiency Wilo PARA 25/6 pump is a ready-to-install hydraulic assembly designed for direct heating circuits without the need for mixing. It ensures optimal heat distribution in heating systems where a constant supply temperature is required.
This compact and robust pump group is ideal for floor heating circuits, radiator circuits, or buffer tank connections, offering reliable, energy-saving operation.
Key Features and Benefits
✔ Without mixer – Direct heating circuit control
✔ High-efficiency Wilo PARA 25/6 pump – Energy-saving circulation
✔ Nominal diameter DN25 – Suitable for medium-sized heating systems
✔ Compact design – Space-saving and easy to install
✔ Fully insulated housing – Reduces heat losses
✔ Preassembled – Quick and easy integration into the system
Viessmann GDA2 DN25 / Wilo PARA 25/6 guarantees efficient hydraulic performance and long-term reliability for modern heating systems.
Viessmann 2-Branch Collector GMA 521 with Integrated Hydraulic Separator
The Viessmann GMA 521 is a high-quality 2-branch hydraulic collector featuring an integrated hydraulic separator, designed for efficient and stable distribution of heating circuits in multi-zone systems. The integrated separator ensures perfect hydraulic decoupling between the primary and secondary circuits, improving system reliability and efficiency.
The compact and fully insulated design reduces heat losses, while robust construction guarantees long service life and optimal performance.
Key Features and Benefits
✔ 2-branch collector – Suitable for systems with two heating circuits
✔ Integrated hydraulic separator – Ensures hydraulic balance between primary and secondary sides
✔ Fully insulated – Minimizes energy losses
✔ Durable and corrosion-resistant – Long-term reliable operation
✔ Compact design – Space-saving and easy to install
✔ Ideal for modern Viessmann heating systems
Viessmann GMA 521 delivers stable hydraulic performance, energy savings, and optimized heat distribution for your heating system.
Viessmann Pump Group with Mixer GRA2 DN25 / Wilo PARA 25/6
The Viessmann Pump Group GRA2 DN25 with integrated three-way mixing valve and high-efficiency Wilo PARA 25/6 pump is a ready-to-install hydraulic assembly for heating circuits requiring temperature regulation. It is ideal for floor heating systems, low-temperature radiator circuits, or any application where a controlled supply temperature is needed.
The integrated mixer ensures precise temperature control, maximizing system efficiency and comfort.
Key Features and Benefits
✔ With integrated mixer – Precise supply temperature regulation
✔ High-efficiency Wilo PARA 25/6 pump – Low energy consumption
✔ Nominal diameter DN25 – Suitable for medium-sized heating systems
✔ Compact and fully insulated design – Reduces heat losses
✔ Preassembled unit – Quick and easy installation
✔ Ideal for underfloor heating and mixed heating circuits
Viessmann GRA2 DN25 / Wilo PARA 25/6 ensures perfect hydraulic balance, temperature control, and energy-efficient operation in modern heating systems.
Viessmann 3-Way Collector GMA 531 with Integrated Hydraulic Separator
The Viessmann GMA 531 is a premium 3-way hydraulic collector featuring an integrated hydraulic separator, designed for complex multi-zone heating systems. It ensures perfect hydraulic decoupling between primary and secondary circuits, providing balanced heat distribution, system protection, and optimized energy efficiency.
With its compact, fully insulated design, GMA 531 minimizes thermal losses and guarantees long-term reliable performance.
Key Features and Benefits
✔ 3-way collector – Ideal for systems with three heating circuits
✔ Integrated hydraulic separator – Balances primary and secondary circuits
✔ Fully insulated design – Reduces heat losses
✔ Robust and corrosion-resistant construction – Long service life
✔ Compact and space-saving – Easy to integrate into technical rooms
✔ Compatible with Viessmann heating technology
Viessmann GMA 531 ensures maximum system efficiency, reliable hydraulic balance, and enhanced energy savings for complex heating applications.