Description
Grundfos Underfloor Heating FLEX Pump with Blending Valve
The Grundfos Underfloor Heating FLEX Pump with thermostatic blending valve is designed for circulation and flow temperature control in wet underfloor heating systems.
This complete UFH pump and mixing set combines a Grundfos FLEX circulation pump with a thermostatic blending valve, providing a practical solution for connecting a water underfloor heating manifold to the primary heating system.
The pump circulates water through the manifold and individual UFH pipe circuits, while the thermostatic blending valve mixes hotter primary water with cooler return water to help maintain a suitable flow temperature for the underfloor heating system.
Key Features
Grundfos FLEX Pump – Reliable circulation pump suitable for water underfloor heating systems.
Thermostatic Blending Valve – Helps regulate the temperature of water entering the UFH manifold.
Complete UFH Pump & Mixing Set – Grundfos FLEX pump and blending valve supplied as a convenient assembly.
Suitable for UFH Manifolds – Designed for use with compatible brass and stainless steel underfloor heating manifolds.
Controlled Flow Temperature – The blending valve mixes primary and return water to achieve a suitable temperature for UFH circuits.
Ideal for Wet Underfloor Heating – Suitable for new installations and replacement UFH pump/mixing sets.
How Does the Pump & Blending Valve Work?
Underfloor heating systems generally require a lower flow temperature than conventional radiator systems.
The thermostatic blending valve mixes hotter water from the primary heating circuit with cooler return water from the underfloor heating system. The Grundfos FLEX pump then circulates the mixed water through the manifold and individual UFH loops.
The required flow temperature should be set during installation and commissioning according to the system design, heat source and floor construction.
Suitable For
- Water underfloor heating systems
- Brass and stainless steel UFH manifolds
- Single and multi-zone UFH installations
- New underfloor heating systems
- Replacement UFH pump and blending valve sets
What Is Included?
- Grundfos FLEX circulation pump
- Thermostatic mixer/blending valve
- Pump and mixing assembly as shown
Complete Your UFH System
Combine the Grundfos FLEX pump and blending valve with our range of underfloor heating manifolds, Eurocone connectors, actuators, thermostats and wiring centres for a complete water UFH installation.
