Metallic Gasket

The ring type joint was initially developed for use in the petroleum industry, where high pressure/temperature applications necessitated the need for a high integrity seal. They are mainly used in the oil field on drilling and completion equipment. Ring type joints are also commonly used on valves and pipework assemblies, along with some high integrity pressure vessel joints.

The Style R ring type joint is manufactured in accordance with API 6A and ASME B16.20, to suit API 6B and ASME B16.5 flanges.
Style R ring type joints are manufactured in both oval and octagonal configurations. Both styles are interchangeable on the modern flat bottom groove, however only the oval style can be used in the old type round bottom groove.

Style R ring type joints are designed to seal pressure up to 6,250 psi in accordance with ASME B16.5 pressure ratings and up to 5,000 psi in accordance with API 6A pressure ratings.

The Style RX is an adaptation of the standard Style R which energizes on assembly. The RX is designed to fit the same groove design as a standard Style R, making the joints interchangeable.
Consideration should be given to the difference in finished make-up distance.
The modified design uses an energizing on assembly effect which improves the efficiency of the seal.

Designs are also available for Subsea applications.

Specials

• Used in pressure testing to minimise damage to flanges
• Rubber  contact points provide additional seals while protecting the flanges surfaces
• Provides increased assurance against corrosion

• Specialised machined metallic component to suit subsea and welhead equipment

• Provide high integrity, high pressure / temperature seal for special applications 
• Suitable for use with conical Flanges faces
• Manufacture in accordance with DIN 2626