As the series of piping network products for water supply and drainage with mature technology, pipes and fittings of PVC-U are one of the largest outputs for plastic products in the world, which already had been used widely both at home and abroad. For PVC-U water supply piping network, the raw materials and finished products are both match or exceed the relative standards. So PVC-U piping network can suit for the equipments of drinking water supply. The piping networks are designed for the uninterrupted supply of water condition from 20°C to 50'C. Under this condition, service life of piping network can up to 50 years.

Since the pressure pipeline is not easy to deteriorate and corrode, the inlet water is clean. PVC products are characterized by reduced flammability. The inner surface of PVC pipes is always free and clean, because salt will not accumulate and deposit on the pipe wall. This characteristic enhances the service life of the product.