1681: CR-Brass Combined Free-flow and Backflow-preventer Valve

acc. to DIN EN 13959, Material acc. to DIN 50930-6 rather currently valid UBA positive list, female-thread, rising as well as dead storage free brass upper-part with grease chamber, with Drain valve, DIN-DVGW certified (½" - 2" / type 1600), noise-class approval class 1, Nominal pressure PN 16, EPDM sealing with KTW / W270 approval, max. operating temperature 90°C as well as pre-assembled nipples Viega Profipress