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Everything for your top-quality water: We are the experts.

Clean and perfectly hygienic potable water is something very precious and needs to be protected. Many standards specify numerous requirements to ensure the preservation of our potable water quality. However, risks are high when the installation is not made properly or according to standards — this could reduce the potable water quality, cause infectious diseases and lead to recourse claims. The high-quality protective devices from SYR protect the potable water installation against backflow, backpressure or backsiphonage of water. Thus, you can always guarantee your customers that their water does not present any health hazards.
Backflow Preventer STBA 100
DN 15 R 1/2" 6625.15.000 R 3/4" 6625.15.001
SYR expert advice
The STBA 100 is the first backflow preventer that can be mounted in a vertical position, as the flange system allows the vertical installation of the main axis.
For the protection of potable water against non potable water according to EN 1717 up to and including fluid category 4. Installation upstream of apparatuses and draw-off points. Body made from hot-stamped brass and synthetic material.