Metallic / Ring Type Joint

Ring Type Joint
(RTJ) Gaskets

Solid metal sealing for matching grooved flanges. Explore R, RX and BX designs, selected around the connection and operating duty.

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THE CONSTRUCTION

Solid metal.
Matched to the groove.

A ring type joint gasket is a solid metal ring that seals against precision-machined flange grooves. Assembly load deforms the ring at its sealing contacts.

The ring profile, groove and material must work as a system. A similar diameter alone does not establish compatibility.

FamilyMetallic

ConnectionGrooved flange

Profiles shownR, RX & BX

EXPLORE THE RING PROFILES

Four profiles. A precise match.

R oval and R octagonal are two profiles within the R family. RX and BX have their own design requirements.

01 / Rounded section

R Type — Oval Ring Joint Gaskets

Oval-section R ring for the specified flange groove. Confirm the ring number, groove geometry and material before selection.

02 / Eight-sided section

R Type — Octagonal Ring Joint Gaskets

Octagonal-section R ring for compatible flat-bottom grooves. Do not substitute it into an older round-bottom groove.

03 / Pressure-energized design

RX Type Ring Joint Gaskets

An adaptation of R with a pressure-energizing geometry. Check the specified groove and finished flange make-up distance before substitution.

04 / API 6BX connection

BX Type Ring Joint Gaskets

Designed for API 6BX flanges, with a pressure-balancing hole. BX is a distinct ring and groove system, not a general replacement for R or RX.

WHERE THEY ARE USED

For connections designed around a metal ring.

Select the gasket against the equipment specification, fluid and operating conditions.

01 / UPSTREAM

Wellheads & trees

Specified grooved connections in oil and gas production equipment.

02 / PROCESS

Refinery piping

RTJ flange connections in process and hydrocarbon service.

03 / CONTROL

Valves & manifolds

Connections whose pressure boundary is designed for an RTJ seal.

04 / EQUIPMENT

Pressure equipment

Engineered joints with the required ring groove and assembly specification.

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