Ring Type Joints for Demanding Industrial Applications

Ring Type Joints (RTJs) are precision-engineered metallic gaskets designed for high-pressure and high-temperature sealing applications. They are commonly used in pipeline systems, pressure vessels, valves, and other high-pressure process equipment where reliable sealing performance is essential. Key industries include oil and gas, petrochemical, offshore, marine, refining, and power generation.

Manufactured from solid metal and designed to seal through metal-to-metal contact within RTJ groove flanges, these joints provide exceptional sealing integrity in demanding operating environments. They are produced in accordance with licensed dimensions specified by API 6A and ASME B16.20, ensuring consistent quality, accurate fit, and full interchangeability.

Specifications & Features

Ring Type Joints are widely used throughout industries due to their ability to deliver reliable sealing performance under extreme pressure and temperature conditions. Key features include:

• Ring Type Joints (RTJs) concentrate bolt load over a small contact area, generating high localised sealing stresses for effective sealing.

• The RTJ material is designed to be softer than the mating flange faces. Under load, this creates controlled plastic deformation (“plastic flow”) of the ring into the flange grooves, forming a tight metal-to-metal seal.

• RTJ gaskets are highly reliable sealing elements for high-pressure service, commonly used in pipelines and equipment handling pressures up to around 20,000 psi.

• They are manufactured in a range of materials to match different process conditions and flange specifications, allowing selection based on corrosion resistance, temperature, and service requirements.

• Multiple RTJ profiles are available: standard R-type rings (R11, ½” through to R105, 36”) in oval or octagonal sections; BX, SBX, and RX types for subsea applications; and IX seal rings designed for NORSOK compact flange assemblies.