R-type Octagonal ring
The ring joint Octagonal ring was originally developed for high-pressure/high-temperature applications in the petroleum industry, mainly used for drilling and completion equipment in oil fields.
However, today this product line can also be found on valve and pipeline working devices, as well as some high integrity pressure vessel joints.
The manufacturing of R-type gaskets complies with API 6A, 6B, and ASME B16.20 and is suitable for API ASME/ANSI B16.5 flanges. In elliptical and octagonal configurations, these two types are interchangeable modern octagonal groove flanges.
Pressure: 2000-5000
Tolerance: (mm)
A (width of the ring) ± 0.20
b. H (height of the ring) ± 0.5
P average pitch (diameter of the ring) ± 0.18
23 ° (angle)
1/2°
Flexmetallic style R-ring nodes can be manufactured in accordance with relevant standards and the following flange codes
API6A
ASME/ANSI B16.5
MSS SP44 (ASME B16.47 series)
BS 1560
