Welding Check Valve NRD-W for PP Pipes - Prevent Backflow

Reverse valve sash under welding with PP pipes consists of a non-return valve, two flange collars with flanges, bolts, nuts and is designed for installation in polypropylene pipelines to prevent backflow. Installation is carried out by means of diffusion welding, which greatly simplifies installation in comparison with other methods: flanged, interflanged or under welding with steel pipes.DN:110,125,160 SDR 11, 160 SDR 7.4, 160 SDR 9, 200 SDR 11, 200 SDR 7.4, 200 SDR 9, 250 SDR 11, 250 SDR 7.4, 250 SDR 9, 63, 75, 90