SYR System Separator 6625, STBA 100 DN 15, R 1/2

The BA STBA 100 system separator is a compact backflow preventer according to DIN EN 1717, Group B, with controlled separation (three-chamber system). It corresponds to the installation type BA defined therein and can therefore be used for protection up to and including fluid category 4. Its purpose is to prevent back-siphonage or backflow of non-potable water into the public drinking water supply system. The BA system separator covers a wide range of applications (e.g., printing plants, chemical and food industries, laboratory and medical technology). The BA system separator complies with DIN EN 1717 and the components specified therein and is designed as a 3-chamber system with controllable upstream, intermediate, and downstream pressure zones. In addition, it is equipped with an integrated dirt filter. Each pressure zone can be fitted with test valves (accessory 6625.15.902), thus allowing control of the safety devices by pressure measurement. The system separator consists of 2 backflow preventers (RV) connected in series, which are equipped with a ventable intermediate zone. If no water is drawn, the inlet and outlet RVs, as well as the drain valve, are closed. In the event of back-siphonage, the inlet pressure drops. The drain valve opens at the latest when the differential pressure between the upstream and intermediate pressure chamber has fallen to 0.14 bar. Technical data: Operating pressure: max. 10 bar Operating temperature: max. 30 °C (inlet), max. 65 °C (outlet) Ambient temperature: 5 °C - 40 °C Installation position: any, if drain funnel is downwards Medium: drinking water Flow rate: 1.8 m³/h at ?p 1.5 bar. Connection size: DN 15