Leader RTJRing Type Joint Gaskets
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Leader Ring Type Joint BX

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Description

Leader Ring Joint gaskets are developed for use in the petroleum industry and in particular for wellhead and Christmas tree- as well as drilling and oil & gas production equipment. These solid precision machined metallic gaskets, also called and known as ring type joint (RTJ) gaskets are suitable for the highest possible pressure and temperature duties and form together with special grooved API 6A (ISO 10423) type 6BX flanges a high integrity seal. BX ring gaskets are manufactured in a special symmetric shape of the cross-section. The width of the sealing faces is small and high seating stresses can be formed. Dimensions of gaskets and corresponding grooves are designed in such a way that style BX gaskets do become self-sealing characteristics. This effect is also known as pressure energized sealing.

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Product Data SheetMetallic materials

Application

Ring Joint gaskets are widely used between pipeline flanges, valves and pressure vessels in the Oil & Gas industry. High operating pressure up to 1378 bar when applied in API 6B. BX gaskets are suitable for API 6A (ISO 10423) type 6X flanges for working pressure rated 5000, 10000 and 20000 lbs flanges.

Chemical Compatiblity

Corrosion and chemical resistance are depending on the selected RTJ gasket material. For pressure and temperature range we refer to Technical Specifications, as per table 1.

Delivery Options

BX shaped RTJ gaskets are available in ring numbers BX150 up to BX303. Special gaskets in non-standard dimensions can be manufactured upon request. Soft Iron and SS316L are common stock materials, other materials are also available, please refer to table . These gaskets are designed according to the API 17D (ISO 13628-4) norm. This variant is designed for subsea applications. Please consult Leader for further information regarding specific product information.

Temperature

Corrosion and chemical resistance are depending on the selected RTJ gasket material. For pressure and temperature range we refer to Technical Specifications, as per table 1.

Approvals

  • ASME B16.20
  • API 6A (ISO 10423)

Certificates

  • EN10.204 3.1

Sealing Characteristics

  • Solid metallic gaskets such as ring joint gasketsexhibit minimum recovery characteristics
  • Non blow-out type
Technical Data
max Temperature [°C]See material table below
min Temperature [°C]See material table below
max Pressure [bar]1400
M-value Soft Iron (D) and Soft Steel (S)5.5
M-value Stainless steel6.5
M-value Monel and F56
Y-value Soft Iron (D) and Soft Steel (S) [psi]18000
Y-value Stainless Steel [psi]26000
Y-value Monel and F5 [psi]21800
Gasket required flange roughness [Ra micron]1,6 max.
Gasket required flange roughness [RMS]63 max.
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