Ring Type Joints

Ring type joints excel in high-pressure applications such as oil and gas exploration and production. RTJs are also used on valves and pipework assemblies in refineries and other process industries.

Ring Type Joints

Available in both oval and octagonal profiles, standard Flexitallic style R ring type joints are manufactured to meet both API 6A and ASME B16.20 sizes and ratings. Also available are Flexitallic Style RX ring type joints which energizes on assembly. This type is designed to fit the same groove as a style R therefore making them interchangeable. For very high pressures, often found in sub-sea wellhead and Christmas tree systems, the Flexitallic style BX is used. Subsea versions of all styles are available with pressure balance holes.

We can also supply special RTJ and bespoke solid metal gaskets for topside and subsea blow-out preventers.

RTJ gaskets can be supplied in a wide range of stainless steels, Inconel alloys and other specialist metals. Coatings available include zinc, Xylan and silver.

Ring Type Joint Brochure

Ring Type Joint

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Spiral Wound Gasket

To combat the effects of pressure and temperature fluctuations, flexibility and recovery are essential.

Spiral Wound Gasket

The necessity for a gasket to have the ability to recover cannot be over emphasised. The effects of pressure and temperature fluctuations, the temperature differential across the flange face, together with bolt stress relaxation and creep, demand a gasket with adequate flexibility and recovery to maintain a seal even under these varying service conditions. The Flexitallic Spiral Wound Gasket is the precision engineered solution to such problems, meeting the most exacting conditions of both temperature and pressure in flanged joints and similar assemblies and against virtually every known corrosive and toxic media.

Spiral Wound Gasket Brochure

Spiral Wound Gasket

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SF4300 – Sheet Material

Pump Gasket

Flexitallic SF4300 is a high performance gasket material suitable for sealing in a wide range of demanding applications involving, water, oils, fuels, hydrocarbons, refrigerants, mild acids and alkalis and offers:

  • Max Temperature: 400°C
  • Max Pressure: 100 bar
  • Outstanding stress relaxation
  • Excellent creep resistance
  • Fire-safe
  • Resistant to hot water and steam
  • Meets the requirements of BS7531 Grade X


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Corriculite gasket

Responding to customer demands for an improved material with strong anti-corrosion characteristics Flexitallic has created Corriculite™ – a filler material for spiral wound gaskets specifically designed for use in corrosion-sensitive environments, such as seawater and hydrocarbon services, across a number of industries, including oil and gas, power and marine.

This revolutionary, non-conductive filler material provides sealing performance and corrosion resistance unlike any other gasket material on the market. Comparative tests show Corriculite™ delivers corrosion protection and sealing properties that far exceed other materials currently available.

To learn more visit

Corriculite Brochure

Corriculite CR235 Datasheet v7

Flexitallic Product & Services Brochure