Backflow preventer in skyscraper

France, La Défense - Paris
Office Buildings
February 2021
On a global surface of 55000 m², the Pacific Tower is 25 floors high. The water distribution network is designed for 2 major uses : potable cold and hot water, and fire safety.
"Watts insured me with the comformity of the devices and their identical sizes " says Mr Derouiche, salesman for the company OA7 Energy.
"The installation needed 4 persons for 4 days and lifting equipment."
Detailed Description
How to secure water networks
Issue :
Huge networks for water distribution : both potable water and fire safety - compliance to regulation - easiness of maintenance

Solution :
8 backflow preventers BA typ : from 50 to 200 mm diameter.