Use: Used in underfloor heating systems as well as in mixed systems (radiators/underfloor heating), to take the heat transfer fluid from the primary heating circuit at high temperature (55°C) and supply it to a secondary circuit at a lower temperature (20–45°C). Max. liquid temperature: 80°C Max. system pressure: 10 bar Fluid temperature range: 20–50°C Pump connection distance: 130 mm Pump connection: G1″ Manifold flow/return connection: G1″ By-pass: 0–800 l/h Qmax at ΔP = 3 m H2O: 2,800 l/h Insert photo here Link 1 Components: 1. Thermostatic valve: 3/4″ 2. Straight return valve: 3/4″ 3. Thermostatic head with immersion sensor 4. Balancing valve: 3/4″ 5. Circulation pump: Grundfos UPM3 AUTO L 15/70