World's first: Building renovation to receive triple certification. Energy Valve controls flow of cooling water. Bouygues defined this triple certification as an objective of the project at the time of planning in 2008. In order to achieve this goal, the Group's research and development teams developed numerous innovations in cooperation with the industry. Among other things, an innovative air conditioning system with variable refrigerant flow (VRF) was developed. The Belimo Energy Valve™ has a central role to play in the project. Belimo Energy Valve™ features: • Pressure-independent flow control • Automatic, permanent hydraulic balancing • Real time information of the measured flow rate • Air bubble-tight shut-off • Energy monitoring • Delta-T manager