Prefabricados Delta, in its constant pursuit of improvement and innovation in the manufacturing of all its products, has developed a new solution for pressure pipe installations with diameters greater than 800 mm: the introduction of a double elastic seal with a check valve for its reinforced concrete pipe with a sheet metal casing.

The idea is to install a double seal (Fig. 1) on the male end, instead of the usual single seal (Fig. 2), to guarantee improved performance and watertightness immediately after installation.

Fig. 1

Fig. 2