Case studies - Backflow preventer in skyscraper

Choice criteria

• Compliance to regulation EN 12 729

• Range width : diameter 50 to 200 mm

• Same size to avoid retrofit works

• Easiness of installation and maintenance

• Technical support

Voice of customers

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."


Huge networks for water distribution : both potable water and fire safety - compliance to regulation - easiness of maintenance



Pacific Tower - La Défense - Paris



February 2021



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



OA7 Energy