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Ring type joint

The ring type joint (RTJ) is a metallic gasket, that is used in combination with special flanges with grooves. Combining the right material and profile shape results in a highly reliable seal. The ring type joint is used in applications with high requirements to the seal, such as the (petro) chemical and offshore industry. Ridderflex supplies the RTJ in various types and materials.

Properties of the ring type joint

The ring joint excels in applications with high-pressures and temperatures. Depending on the material and profile selection, the product has a few well-known properties:

  • suitable for applications in high and / or fluctuating pressures (up to 1500 bar);
  • resistant to high temperatures (up to 1000 ° C) and
  • highly chemical resistant.

Different RTJ’s 

We supply the ring type joint in four standard types:

R ovalOval ring joint, designed for flanges with standard ring joint grooves.
R octagonalOctagonal ring joint, designed for flanges with standard ring joint grooves.
RXSuitable for pressures up to 700 bar. This RTJ is capable of sealing itself. The outer sealing surfaces make the first contact with the flanges. A higher system pressure causes a higher surface pressure. Type RX is interchangeable with the standard R-models.
BXSuitable for very high pressures up to 1500 bar. This ring joint is not interchangeable with other types, and is only suited for API type BX flanges and grooves.

In addition to profile types mentioned above, Ridderflex supplies several different ring type joints. Our specialists are happy to advise you. Please contact our sales department.

Choice of material

The table below indicates the most commonly used materials for ring type joints. Is the desired material not shown in the table? We also produce RTJ’s in other materials on demand.

  • Soft iron
  • Carbon steel
  • SS (Stainless steel)
  • Nickel alloys
  • Duplex steel
  • Aluminum
  • Titanium
  • Copper
  • Monel
  • Hastelloy
  • Inconel
  • Incoloy

RTJ’s are applied with special accompanied flanges with grooves. Combining the right material and profile shape results in a highly reliable seal.

Universal products

Ridderflex supplies ring type joints according to standard sizes for flanges: DIN, ASA and ANSI sizes. If you have questions or want to make an enquiring please call our sales department +31 (0) 180 46 34 71 or send us an e-mail.

Related to ring type joint

  • Chemical and petrochemical industry

    Chemical and petrochemical industry

    Ridderflex gaskets and sealing products and hoses can be found in pumps, pipe systems and fire extinguishing systems in the petrochemical industry.

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ISO including co-engineering

Ridderflex complies with international quality management requirements. We are now also certified for co-engineering – our strength – . Read more

Questions?

Any questions about products or make an enquiry? Simply call us or send us an e-mail.

sales@ridderflex.nl +31 (0) 180 46 34 71