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Solutions > Drinking Water Hygiene > Drinking Water Protection

Drinking water protection with Braukmann backflow preventers

Drinking water is our most important resource. It is needed every day for drinking, cooking and washing. However, in order to keep it clean and hygienic, and therefore harmless to health, it must be protected in the pipes of the drinking water systems. A vital factor for a hygienically clean water supply is the protection of the drinking water in the pipeline system from contamination by non-drinking water. This is governed by the standard DIN EN1717 Drinking water protection and water hygiene according to EN1717.

DIN EN1717 divides all liquids into five categories based on the potential hazards for the person who might be exposed to this water. It also establishes the need for safeguarding to guarantee reliable drinking water protection.​

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Benefits

Applications & Products


​With Resideo you have a partner to protect you against hazards from all fluid categories and that offers the right solution for safety fittings.


Category 1 (Drinking water)

Category 2 (altered drinking water, no health hazard)

Category 3 (moderate health hazard)

Category 4 (strong health hazard, non-biological)

Category 5 (severe health hazard, biological)

Protection up
to liquid category
Connection type: Threaded
Connection type: Flanged
Drinking water application
Heating water application
For domestic application
For commercial application
For industrial application
Housing material
Family according to EN 1717
Check valve
RV277		 Check valve
RV281		 Check valve
RV283S		 Backflow Preventer
CA295		 Refilling combination
NK295C		 Backflow Preventer
R295		 Backflow Preventer
BA295D-3/4WH		 Backflow Preventer
BA295D-1/2ASC		 Backflow Preventer
BA295CS		 Backflow Preventer
BA295S		 Backflow Preventer
BA298I-F		 Backflow Preventer
BA300		 Automated mechanical disconnector
R295HP-F		 Refilling combination
NK300S		 Class 5 break unit
CBU140		 Class 5 break unit
CBU142
Class 5 break unit
CBU146
2 2 2 2,3 2,3 2,3 2,3,4 2,3,4 2,3,4 2,3,4 2,3,4 2,3,4 2,3,4 2,3,4 2,3,4,5 2,3,4,5 2,3,4,5
R 1/2“ – R 2“ R 1/2“ – R 2“ R 1/2“ + R 3/4“ R 1/2“ R 1/2“ – R 2“ R 3/4“ R 1/2“ R 1/2“ – R 2“ R 1/2“ – R 2“ R 1/2“ R 3/4“ inlet/
R1“ outlet		 R 11/4"
DN50 – DN150 DN65 – DN150 DN65 – DN200 DN65 – DN200 DN32 – DN80
Brass Brass Cast Iron Brass Brass Red Bronze Brass Brass Brass Brass Stainless Steel Cast Iron Cast Iron Brass
EA EA EA BA CA GA BA BA BA BA BA BA GB BA AB AB AB