Ring joint gaskets
The RX type RTJ gasket is manufactured in accordance to API 6A and ASME B16.20 to suit API 6B and ASME / ANSI B16.5 flanges. The RX is a pressure energized version of the R octagonal gasket and fits the R type flat bottomed groove.
The RX has an increased height and utilizes the internal system pressure to energize and improve the seal as internal pressure increase. Some RX sizes have a pressure relief hole to equalize pressure both sides of the sealing faces.
Can be ordered according to the detailed drawing
Material |
Code Sample |
Hardness(HB) |
T() |
Soft Iron |
R23 SI |
90 |
530 |
Carbon Steel |
R23 CS |
120 |
530 |
304(L)321316(L) |
R23 S304 |
160 |
750 |
5Cr1/2Mo |
R23 F5 |
130 |
500 |
Copper for 640PL |
|
50 |
400 |
Aluminium for 640PL |
|
30 |
300 |
DIMENSIONS:
Standards for Ring Joints Gaskets used with flanges |
RJG Style |
RJG standard |
Flange standard |
R |
ASME B 16.20 API 6A |
ANSI B 16.5 ANSI B 16.47 Series A |
RX |
ASME B 16.20 API 6A |
API 6B |
BX |
API 6A |
API 6BX |