RTJ flange refers to a trapezoidal sealing surface flange with RTJ groove, which is fully named Ring Type Joint Flange. Due to its excellent sealing performance and pressure bearing capacity, it is often used for pipeline connections in harsh environments such as high pressure and high temperature.
The most significant difference between RTJ flanges and ordinary flanges is that they use annular sealing gaskets, which can achieve more reliable fastening and sealing functions. This type of gasket is usually made of steel and has good resistance to high temperature and corrosion, so it can withstand higher pressures and temperatures.
Common international standard
ANSI B16.5
ASME B16.47
BS 3293
Common flange arrangement
Weld neck flange、Blind flange
Common material types
Stainless steel, Carbon steel
Common sizes, models, and pressure levels
Dimensions: Common sizes range from 1/2 inch to 120 inch (DN15 to DN3000)
Divided into circular and octagonal shapes according to their cross-sectional shapes
Pressure level: Generally able to withstand a pressure level of 150LB to 2500LB
Installation:
Special torque wrenches must be used for installation to ensure that the tightening force meets the standard requirements.
Before installation, all connecting parts, especially the grooves and gasket surfaces, must be cleaned to ensure sealing performance.
During the installation process, bolts should be gradually and evenly tightened to avoid local over tightening or looseness, which may affect the sealing effect.
In summary, RTJ flanges have important application value in harsh environments such as high pressure, high temperature, and corrosion, but installation and maintenance require special attention to relevant requirements to ensure their correctness and reliability
Application scope
RTJ flanges are typically used in environments with high pressure, high temperature, corrosion, and wear, such as marine development, oil pipelines, petrochemical, aerospace, nuclear power, and other industries.
Post time: Apr-18-2023
