To avoid the backflow of materials up to category 4 into the drinking water installation, the backflow
preventer BA (acc. to DIN EN 1717 a “backflow preventer with a controllable middle pression
area”) is used as an approved safety device.
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.