API Ring Joint Gaskets

API Ring Joint Gaskets

When one deals with high or elevated pressure and temperature conditions, API ring joint gaskets are widely demanded. This is because it is available in RX, R, BX styles, with profiles which are octagonal or oval. It is this style and profile, that offers unique features, when put for ideal use case. For fitting standard API 6A RTJ gasket with grooves that are trapezoidal, R types sections are used.

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Specification of API Ring Joint Gaskets

Shape & types of API ring joint gasket API ring joint gasket types PSI rating
  • Oval
  • Octagonal
  • Groove
  • API 6A Type 6BX
  • API 6A Type 6B
  • Up to 20,000 PSI
Service Series Suitable for
  • Customized size offer in Taiwan, South Korea, India, Vietnam
  • Our suppliers play important role in solving sealing problems in various countries such as China, Japan, etc
  • R Series (Octagonal or Oval Section)
  • RX Series
  • BX Series (API 6A Flanges)
  • SR Style
  • SRX Style
  • Subsea & Wellheads Rings
  • SBX Style
  • Specialised Rings

Directly contact listed API ring joint supplier for available stock size

  • High pressure service
  • High temperature service
Manufacturing Standard API ring joint gasket face Applications
  • API-6A
  • ASME B16.20
  • NACE
  • API 6A PSL Level 4
  • Full-Face
  • IBC
  • Petrochemical plants
  • Refineries
  • Pressure Vessel
  • Valves
  • Pipe lines
  • Drilling well head equipment
Rubber coated API ring joint gaskets Flange size Hardness
  • Nitrile rubber coated
  • Buna coated rings
  • 2 1/16″ to 20 3/4″
  • Low Carbon Steel (Brinell) : 120
  • Low Carbon Steel (Rockwell b) : 68
  • 316 SS (Brinell) : 160
  • 316 SS (Rockwell b) : 83

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Other section types that have an edge section which is complex bevelled for withstanding pressures up to 700 bars is RX and BX. Not only this, the involved materials used for the manufacturing of API ring gasket are as follows:

  • When standard materials are concerned, it is made up of F5 and 410 alloy steels, stainless steel 304, 304L, 316, 316L.
  • With respect to non-standard, it comprises of nickel alloys, super alloy steels and other grades of stainless steel.
  • Nitrite rubbers are coated for soft iron metal based API 6A ring joint gasket. This is done for wellhead assembling and valve testing.

Know more about API 6A gasket features and manufacturing process as per ASME b16.20

Adding to this, one can get varied dimensional aspects associated with this product. When put for use case, you can get size range of R or Rx models withing 1/2″-24″, for pressure rating class 150-2500. On the other hand, for BX models, it is within 111/16″-30″. These dimensional aspects are in accordance with material standards ASME B16.5 and BS 1560. This is very important for winning confidentiality, while customers choose API 6A gasket.

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Also check API 6bx ring joint gaskets thickness calculation, meet the top 10 API approved ring joint gaskets stockists, and enjoy factory prices

It is this dimensions and other factor such as country location, location of project, availability, and much more, that also bring price variations. Wondering how?

Let us take an example. If a project location in Saudi Arabia wishes to purchase API 6bx ring joint gaskets from a supplier in Singapore, then the transportation cost (shipping cost) is also added. This price might be different if the same product was aspired from, lets say, Dubai. So, price variations occur on a large scale.

But there is one important aspect, that is attached to this product. Because it has an ability to also bear chemicals which are aggressive, It can operate well up to 1832°F temperature conditions. Not only this, it also ensures good sealing, without the surface damaging happening for API 6A ring gasket. This property is taken care of completely, where it shows compliance with ASME B16.20 material standards. Not only this, it has a protective coating layer, that prevents oxidation.