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POWERseal - Metal sealing rings RTJ

The metal sealing rings are designed for high pressures and temperatures - they can seal joints with pressures up to 1500 bar and temperatures up to 1000 °C.

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Product description

Metal sealing rings are designed for high pressures and temperatures - depending on the properties of the ring, they are able to seal joints with pressures up to 1500 bar and temperatures up to 1000 °C.

  • RTJs are offered in 2 basic shapes - oval and octagonal.
  • The wide range of materials offered guarantees tightness in a variety of applications.

Applications

Ring Type Joints were originally developed for high pressure and high temperature applications in the petrochemical industry. Today, they can also be found in valve and piping systems, high pressure tanks and the like.

Material

To avoid damage to the flange or the ring itself, care must be taken to select the correct material. The choice of ring material depends mainly on the chemical compatibility with the medium and the hardness of the material of the given flange.

The ring material should ideally be approximately 30 brinels softer than the flange.

  • At this value, sufficient deformation of the ring will occur to ensure a tight joint without damaging the flange.

Variants

RTJ metal sealing rings are divided into three basic groups:

Type R

  • Available in two cross-sections - oval and octagonal.
  • Both of these designs are interchangeable in modern flat groove flanges.
  • Standard "R" metal sealing rings are manufactured in dimensional ranges to API 6A and ANSI B 16.20.

Type BX

  • Type BX also uses the increase in internal pressure of the medium to increase sealing efficiency.
  • It is manufactured to API 6A and is designed to 20,000 psi (approx. 1380 bar).
  • When properly installed, Type BX seals allow for direct seating of flange faces on both the inside and outside diameters.

Type RX

  • The Type RX variant takes advantage of the increase in internal medium pressure to increase sealing efficiency.
  • It uses the same groove profile as Type R - they are interchangeable.

Features

Feature Value Unit
Operating temperature
-200 to 1000 °C
Operating pressure
0 to 1500 bar

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