DN 50 – 250
PFA 16
Designed to protect drinking water networks from backflow of polluted water due to :
- a pressure drop in the network
- a back pressure from a potentially non potable water network.
DN 50 – 250
PFA 16
Designed to protect drinking water networks from backflow of polluted water due to :
- a pressure drop in the network
- a back pressure from a potentially non potable water network.