Backflow preventer
STBA 100

Backflow preventer

Safety valves and fittings
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Description

For the protection of drinking water against non-potable water in accordance with EN 1717 up to and including fluid category 4. Installed upstream of appliances and draw-off points. Body made of hot-pressed brass and synthetic material. SYR expert advice: the STBA 100 is the first backflow preventer that can be mounted vertically, as the flange system allows vertical installation on the main axis.

Technical specifications

Min. operating pressure2 bar
Max. operating pressure10 bar
Max. operating temperature30 °C (in), 65 °C (out)
Ambient temperature5 °C – 40 °C
FluidDrinking water
Mounting positionVertical, disconnector pointing downwards
Flow rate1,8 m³/h – Δp 1,5 bar
ConnectionDN 15 (R ½ / R ¾)
Length L146 mm (R ½) / 164 mm (R ¾)
Dimension I90 mm
Height H152,5 mm
Diameter D40 mm
CertificationDVGW

Order numbers

Variant / sizeOrder number
DN 15 (R ½)6625.15.000
DN 15 (R ¾)6625.15.001
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