Oventrop lands major Heathrow contract
As part of a major upgrade of Terminal 4 at Heathrow Airport, Oventrop has supplied valves for the co-ordination and dynamic balancing of the modified heating and cooling systems. The project involves extending the existing departures concourse outwards by 25 m for its full 400 m length to increase the amount of natural light entering the building and improve check-in facilities.
Terminal 4 was opened in 1986 and has two tiers and a mezzanine. New baggage lines have also been installed.
M&E contractor Bailey Building Services chose a wide selection of Oventrop valves. They include Hydromat differential-pressure regulating valves to control flows and differential pressures throughout the various circuits of the heating/cooling system. These valves do not require auxiliary power or increase in pump head to work effectively.
MTHW services from the existing plant room have been extended by Bailey to the design by Morgan Professional Services.
10 new air-handling units have been installed on the roof. A link into the existing cooling system has been complemented by three more cooling towers to boost the chiller facilities.
Trench heaters are used at the front of the building, and there is a small number of radiators on the mezzanine stairways and office at that level. All valves controlling heating and chilled-water services to the AHUs, trench heaters and radiators are of Oventrop supply.
