3780: Red-brass Backflow-preventer

acc. to DIN EN 13959, Material acc. to DIN 50930-6 rather currently valid UBA positive list, with female-thread, with test plug, without Drain valve, DIN DVGW certified (type 3701), noise-class approval class 1, operating pressure 16 bar (PN 16), EPDM sealing with KTW / W270 approval, max. operating temperature 90°C as well as pre-assembled nipple Viega Profipress