What are RTJ Flanges?
RTJ or Ring-Type Joint flanges are a specialty type of flange designed to handle extreme pressure and high temperatures. The sealing surface of an RTJ flange features a raised ring, a type of metal gasket that fits precisely into the flange grooves.
The gasket ring is made of soft iron, low carbon steel, or an alloy such as Inconel. The flanges are bolted together using high-strength bolts, which compresses the gasket ring to form a tight seal.
Applications of RTJ Flanges
RTJ flanges are used in several industries, including oil and gas, petrochemical, power generation, and refining. They are ideal for high-pressure and high-temperature applications where a reliable, leak-free seal is critical. Such examples of applications are oil and gas pipelines, steam boilers, chemical reactors, and heat exchangers. Additionally, RTJ flanges are frequently used in offshore and subsea applications, where the flange must withstand hydrostatic pressure and corrosion.
Advantages of RTJ Flanges
RTJ flanges have several advantages over other types of flanges. Firstly, the metal gasket ring is designed to withstand extreme temperatures and pressure, making them ideal for high-pressure applications. Secondly, the raised face contact area of RTJ flanges allows for even distribution of the load, increasing the bearing stress and reducing the risk of flange deformation. Additionally, RTJ flanges provide excellent resistance to corrosion and erosion, making them suitable for harsh environments. Finally, the use of high-strength bolts ensures a tight, leak-free seal, minimizing the risk of leakage and downtime
