Tour & Andersson has supplied a full range of balancing valves to the new prestigious opera house in Oslo. The opera house is the single largest culture-political initiative in modern Norway and shall symbolise Norway as a nation. Besides the challenging architectural requirements the project had to meet severe energy objectives. The project is a part of the EU-project ECO-culture which is about improving environmental savings in high performing cultural buildings.  

The overall energy objectives of the ECO-culture buildings are to reduce the energy consumption and CO2 emission related to cooling by 75-80% and energy consumption related to heating by 35-50%. To meet the energy efficiency requirements the hydronic system had to be fully controllable i.e. the design flows must be available at all terminals at full load, the differential pressure across the control valve must not vary too much and flows must be compatible at system interfaces.

Foto: Jaro Hollan ©Statsbygg

TA manual balancing valves and differential pressure control valves were installed and balanced. The differential pressure controllers optimise the controllability of the variable flow system, being able to keep differential pressure constant regardless of the variations in the available differential pressure.

 STAP differential pressure controller

  “We have been working closely with TA for many years and we have a very high confidence in TA’s people and the quality of the products”, says Erik Halvorsen, Project leader, ORAS AS.

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