... pipe in working temperature, pressure (70 ° c P.N) 1. OMPa condition, use life can reach more than ... 100 years.5, installation is convenient, reliable connect. Pp-r good weldability, pipe, tube can be ... or discharge of chemical industry etc in piping systems.How to secure and economic chooses pp-r pipe?1, ... 40 degrees Celsius (cold) system, the selection P.N 1.0 ~ 160 MPa pipes, fittings, Used for ...