Innovative Irrigation Design Helps European Metropolis' Thrive
When it came to irrigation, reliable products were must and water conservation features were of utmost importance. Hunter irrigation products were the preference of the project’s architect, J.F.L. CONCEPT of Athis Mons. That desire was echoed by the contractors who won the bid on the project— Société EGM (overall bid for entire tramway job), and Société IDFA and Société CCA Perrot (each won bids for part of the irrigation).
Construction began in Summer 2004 with the irrigation installation and in Spring 2005 the grass was planted. High-quality Hunter 7.5 cm Pro-Spray® (with Pro-Spray nozzles 10H and 12F) was the primary choice along much of the greenbelt, but Hunter 5 cm SRS sprays were installed to address the needs of areas with short soil depth.To meet the challenge of water conservation the heads included HCV check valves and to handle high water pressure issues, each zone included a (40 mm) 11⁄2" Hunter ICV valve with Accu-SetTM pressure regulator.
In addition, Tram Baix in Barcelona, Spain is a public transportation system that features more than 8 km of turf surface. The lines are double rail (go and return) with a width of 12 m that is planted with grass. The irrigation system includes PGP® rotors (with purple cover to indicate recycled water use) and square pattern spacing (face-to-face) of 12 m. The future of mass transit in European cities is looking greener and quieter.