An essential type of expansion joint is the conduit expansion joint, which is designed specifically for conduit piping systems. These expansion joints are particularly useful in piping systems that carry hazardous chemicals and are subjected to high vibrations and significant temperature changes. They help to prevent leaks and breakages, ensuring stability, and safety in the pipeline system.
Conduit expansion joints differ from regular expansion joints since they have to handle more significant external forces. The unique design of conduit expansion joints involves a flexible element that is protected by a rigid pipe or frame, which keeps it stable and prevents it from failing under external forces. The flexible element consists of a bellows that can expand and contract depending on the forces being applied to it.
The metal bellows that make up the flexible element in conduit expansion joints are typically made of stainless steel, which is known for its high corrosion resistance, as well as its elasticity and toughness. They are also commonly coated in PTFE (Polytetrafluoroethylene), a type of polymer known for its low friction and resistance to heat, acids, and base. This makes the conduit expansion joint resistant to the chemicals and corrosive agents commonly found in chemical and pharmaceutical processing plants.
Some conduit expansion joints are made with rubber elements, which are more elastic than metal bellows. Rubber expansion joints are ideal for low-pressure piping systems such as those found in water treatment plants, HVAC systems, and drainage systems. These types of expansion joints are also suitable for piping systems that require flexibility.
Fabric expansion joints are suitable for high-velocity systems and are designed to withstand more significant pressures than rubber expansion joints. Made with high-temperature fabrics, these expansion joints are capable of withstanding high-pressure fluctuations that may occur in power plants, refining plants, and heavy industry applications.
In conclusion, conduit expansion joints play a crucial role in pipeline systems, ensuring that they remain stable, flexible, and resilient. The type of expansion joint used depends on the application and the external factors that the joint will be subjected to. Whether it’s stainless steel, rubber, fabric, or PTFE, choosing the right expansion joint is crucial to achieving optimal pipeline performance, safety, and operational efficiency. If you are looking for high-quality expansion joints for your pipeline system, be sure to contact the experts at BM Europe, who can provide you with the best solutions for your piping needs.