Trelleborg - Model 559 - Rieber Pressure (Metric) - Datasheet

The Forsheda 559 Rieber Metric Pressure integrated system uses the mandrel together with the seal as a tool to form the pipe socket during the manufacturing process. Forsheda 559 Rieber Metric Pressure is a seal composite consisting of: A flexible rubber element to seal effectively against spigot and socket. A treated metal insert which holds the seal firmly in place. The seal is placed onto the socket during pipe manufacture, ensuring it is always in the correct position in the join. The seal is equally effective under both positive and negative pipe pressure (vacuum).