Ring Type Joint (RTJ) Gaskets

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North Star supplies a full range of Ring Type Joint (RTJ) gaskets engineered for high-pressure, high-temperature applications where reliable sealing is essential. Designed to fit precision-machined flange grooves, RTJ gaskets create a tight, metal-to-metal seal capable of withstanding extreme operating conditions.

We offer a variety of RTJ styles including oval and octagonal profiles, available in materials such as soft iron, carbon steel, stainless steel, and specialty alloys. Manufactured to meet industry standards like ASME B16.20, our gaskets are ideal for use in oil & gas, petrochemical, and other critical service environments.

With a strong inventory of standard sizes and pressure classes, North Star is ready to support your immediate needs. For non-standard sizes or materials, our supplier network allows us to source exactly what your project requires—quickly and efficiently.

With dependable availability, precision manufacturing, and fast turnaround times, North Star is your trusted source for RTJ gaskets—built for the toughest applications.