Delivering Fluid Sealing Solutions Since 1972

Ring Type Joint Gasket (RTJ Gasket)

RTJ Gasket (Ring Type Joint Gaskets) to meet ASME B16.20 & API 6A Specifications.

Ring Type Joint Gaskets (RTJ Gasket) are high performance, precision, metallic sealing Gaskets. They are able to withstand extreme temperatures (-250’C to 800’C) and pressures, and used in applications for a host of industries, including Petrochemical, Oil and Gas (Offshore Drilling) and Compressor, Pump and Valve. As a key supplier to the leading companies in the Oil and Gas (Offshore Drilling) industry we fully understand the sealing requirements for UpstreamMidstream and Downstream production. Our range of RTJ Gaskets and seals are manufactured from a variety of materials to suit the process media and flange materials.

RTJ Seal Types:

Type BX:

RTJ Gasket Type BX

Type R Octagonal:

RTJ Gasket Type R Octagonal

Type R Oval:

RTJ Gasket Type R Oval

Type RX:

RTJ Seal Type RX

Our experienced team will guide all aspects of production, including prototyping, testing, and final part manufacture. Depending on the application M Barnwell Services and it’s manufacturing partners offer full batch traceability throughout the manufacturing process.

We also have a full range of specific Petrochemical FFKM (Perfluoroelastomer) O Rings, Lip Energised SealsSpring SealsV-Packings and Chevron Stacks, and T Seals.

Our range of products, compounds, and materials for all applications conform to European and International standards. This includes: NORSOK M710, TOTAL GS PVV 142 03/01, SHELL SPE 85/301, ISO 10423 API 6A and NACE.

Type R Oval Octagonal1/2" to 24"150 to 2500 ASME B16.20
26" to 36"300 to 900 ASME B16.20
1 1/2" to 20"Series A API 6A
Type RX1 1/2" to 24"720 to 5000 ASME B16.20
26" to 36"300 to 900 ASME B16.20
1 1/2 " to 20"Series A API 6A
Type BX1 11/16" to 21 1/4"5000 to 20000 ASN

If you would like more information about our range and services contact a member of the team.

E & OE.  M Barnwell Services endeavour to make sure that all content is correct. This information has been gathered from manufacturing partners.


1/2" to 24", 26" to 36", 1 1/2" to 20", 1 1/2" to 24", 26" to 36", 1 1/2" to 20", 1 11/16" to 21 1/4"


Soft Iron, Low Carbon Steel, 4-6% Cr 1/2% Mo, 304, 316, 321, 347, 410, Monel (N04400), UNS N08904, Inconel 625, Incoloy 825, Hastelloy C-276, Titanium


Oval or Octagonal



Temperature Range

-250°C to 800°C