As part the unwavering quest for improvement and innovation that characterise its entire product manufacturing, Prefabricados Delta has developed and introduced into the large-diameter pressure piping range a double elastic joint with check valve for its steel cylinder reinforced concrete pipes.

The concept entails fitting a type of double seal (Fig.1) on the male coupling end opposite the standard seal (single seal) (Fig. 2) in order to ensure better performance and tightness as soon as pipe sections are coupled.

Fig. 1

Fig. 2