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RING GASKETS

These gaskets are positioned inside the flange bolts and around the pipe bore. Ring gaskets are typically used on raised face flanges. When used on a raised face flange, the ring gasket is positioned on top of the raised surface of the flange.

Ring gaskets use less material and, because they lack bolt holes, require less cutting in their production. When ordering ring gaskets, suppliers require three measurements: the ID (Inside Diameter), which matches the pipe bore; the OD (Outside Diameter), which matches the outside diameter of the raised flange face; and the gasket thickness. The desired pressure tolerance of the gasket should also be specified.

Types Of Ring Gasket

RTJ oval

Ring type joint gasket oval

The R type circular seals are available in oval or octagonal section and manufactured in accordance with API 6A and ASME B16.20 to fit API 6B and ASME/ANSI B16.5 clamps.
The oval ring fits the round and flat groove flange

RTJ octagonal

Ring type joint gasket octagonal

The R type circular seals are available in oval or octagonal section and manufactured in accordance with API 6A and ASME B16.20 to fit API 6B and ASME/ANSI B16.5 clamps..
the octagonal shape fits only the modern flat-bottom groove flange.

RX

The RX type RTJ seal is manufactured in accordance with API 6A and ASME B16.20 to fit the API 6B and ASME/ANSI B16.5 clamps. The RX is a pressurized version of the R octagonal joint and fits the R-type flat-bottom groove. The RX has increased height and uses the internal pressure of the system to energize and improve the seal as the internal pressure increases. Some RX sizes have a pressure relief hole to equalize the pressure on both sides of the sealing faces.

BX

BX type RTJ seals are manufactured in accordance with API 6A and are suitable for use in high pressure API 6BX flanges. The joints form a metal-to-metal joint on the joint and efficiency improves as the internal pressure increases. All BX sizes have a pressure relief hole to equalize pressure on the sealing faces. SRX and SBX RTJ to API 17D seals for underwater applications. IX rings for compact flanges. Other non-standard styles of metal rings are also available as combination,IX, Delta and Lens according to customer specifications.

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