- RTJ gaskets are heavy duty, high-pressure gaskets largely used in offshore petrochemical applications. They are precision-engineered components designed to be used in conjunction with precision-machined flanges. All our Ring Joints are manufactured according to ASME B16.20.
- RTJ gaskets material is selected on the basis of the chemical compatibility with the media and the hardness of the flange to ensure sufficient deformation of the gasket without damaging the flange facing.
|
Type |
Nominal Pipe Size |
Class Ratings |
|
Type R Oval and |
1/2" to 24" |
150 to 2500 ASME B16.20 |
|
26" to 36" |
300 to 900 ASME B16.20 Series A |
|
|
1 ½” to 20” |
API 6A |
|
|
Type RX |
1 1/2" to 24" |
720 to 5000 ASME B16.20 |
|
26" to 36" |
300 to 900 ASME B16.20 |
|
|
1 ½ " to 20" |
API 6A |
|
|
Type BX |
1 11/16" to 21 1/4" |
5000 to 20000 ASME B16.20 |
COMMON MATERIALS
|
Material |
Brinell |
Temperature |
Identification |
|
Soft Iron |
90 |
-60 to 500 °C |
D |
|
Low Carbon Steel |
120 |
-40 to 500 °C |
S |
|
4-6% Cr ½% Mo |
130 |
-250 to 500 °C |
F5 |
|
304 |
160 |
-250 to 550 °C |
S304 |
|
316 |
160 |
-110 to 550 °C |
S316 |
|
321 |
160 |
-250 to 550 °C |
S321 |
|
347 |
160 |
-250 to 550 °C |
S347 |
|
410 |
170 |
-20 to 500 °C |
S410 |
|
Inconel 625 |
- |
450 °C |
625 |
|
Incoloy 825 |
- |
450 °C |
825 |
|
Hastelloy C-276 |
- |
450 °C |
C-276 |
|
Titanium |
- |
450 °C |
TI |