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RTJ

RTJ

RTJ Gaskets

RTJ carries a complete range of Ring Joint Gaskets according to API 6A & 17D standards. API 6A types are R (oval & octagonal profiles), RX, BX and API 17D Subsea Ring Joint Gaskets types are SRX and SBX.

RTJ standard size gaskets are in accordance with API-6A (Surface Wellhead and Christmas Tree equipment) and API-17D (Subsea Wellhead and Christmas Tree equipment) specifications.

Stringent quality control measures are followed right from receiving the raw material to the final packaging and shipping and maintenance of material traceability records.

Spiral Wound, PTFE Cushion, Graphite Mould, Flange Insulation Kits, Pure Graphite, Metal Jacketed, Rubber Steel, KamProfile Gaskets and Packing Materials are available.

Product Catalogue
BX/SBX

Specially designed for very high pressures. All BX gaskets incorporate a pressure balance hole to ensure equalization of pressure which may get trap in the grooves. It is only suited for API BX flanges and grooves. SBX is similar to BX style gaskets with special vent holes to allow water to escape in subsea applications.

The BX type RTJ gaskets in accordance with API 6A and are suitable for use in high pressure API 6BX flanges. This type of gasket forms a metal to metal seal on assembling and the efficiency improves as internal pressure increases. All BX sizes have a pressure relief hole to equalize pressure across sealing faces.

The BX type Ring Joint Gaskets are available in sizes from BX150 to BX303.

Tolerances: (mm)

  • A* Width of Ring — +0.20
  • D Hole Size — ±0.50
  • H* Height of Ring — +0.20,-0.00
  • OD (OD of Ring) — +0.00,-0.15
  • 23° (Angle)— ±0°15’

* One pressure passage hole required per ring on center line.

*A plus tolerance of 0.20 mm for width ‘A’ and height ‘H’ is permitted, provided the variation in width or height does not exceed 0.10 mm throughout its entire circumference.

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Product Catalogue
R(Oval)

Standard ring joint gasket with oval cross section and designed for flanges with standard ring joint grooves.

Tolerances: (mm)

  • A (Width of Ring) — ±0.20
  • B,H (Height of Ring) — ±0.50
  • P (Average pitch diameter of ring) — ±0.18
  • 23°(Angle) — ±0°30’

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Product Catalogue
RX/SRX

An adaptation of the standard R type gasket and designed to fit the same groove design. It is interchangeable with standard R type gaskets. SRX is similar to RX style gasket with special vent holes to allow water to escape in subsea applications.

Tolerances: (mm)

  • A* Width of Ring — +0.20,-0.00
  • H Height of Ring — +0.20,-0.00
  • OD of Ring — +0.50,-0.00
  • 23° (Angle) — ±0° 30’

* A plus tolerance of 0.20 mm for width ‘A’ and height ‘H’ is permitted provided the variation in width or height does not exceed 0.10 mm throughout its entire circumference.

Hole diameter shall be as follows:

  • 1.5 mm for Rings RX82 through RX85
  • 2.4 mm for Rings RX86 and RX87
  • 3 mm for Rings RX88 through RX91

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Product Catalogue
R(Octagonal)

Standard ring joint gasket with octagonal type cross section and designed for flanges with standard ring joint grooves. Interchangeable with oval section gaskets on modern octagonal grooved flanges.

Tolerances: (mm)

  • A (Width of Ring) — ±0.20
  • B,H (Height of Ring) — ±0.50
  • P (Average pitch diameter of ring) — ±0.18
  • 23°(Angle) — ±0°30’

Standard Style R Ring Type Joints are manufactured in accordance with both API 6A size/ratings. Available in both oval and octagonal configurations, both types are interchangeable on the modern octagonal type grooved flanges.

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