Ring Joint Gaskets
Ring type joint gaskets(RTJs) are designed for high pressure applications. They are available in a variety of forms to suit different flange formats . RTJs can be used for very high and/or fluctuating pressures (up to 1500 bar), depending on the profile selected. Material selection determines use for high temperatures (up to i000°C) and in aggressive media. To ensure proper sealing the surfaces of contact between the gaskets and flange have to be carefully processed. The small sealing area and high contact pressure results in excellent sealability.
Materials
Standard materials such as soft iron, Low CS and the range of SS are available as well as other materials which are available on request.
| Standard Materails Recommended by the ASME B16.20 | ||||
|---|---|---|---|---|
| ASME / ASTM |
DIN EN 10 027-2 Material no |
Madimum HB | Maximum HV | Material Code |
| Soft Iron | 1.1003 | 90 | 56 | D |
| Low CS | 1.0038 | 120 | 68 | S |
| 4-6 Cr1/2 Mo | 1.7362 | 130 | 72 | FI |
| AISI 410 | 1.4000 | 170 | 86 | S 410 |
| AISI 304 | 1.4301 | 160 | 83 | S 304 |
| AISI 316 | 1.4401 | 160 | 83 | S 316 |
| AISI 321 | 1.4541 | 160 | 83 | S 321 |
| AISI 347 | 1.4550 | 160 | 83 | S 347 |
Dimensions
| Standards for Ring Joint Gaskets used with Flanges | ||
|---|---|---|
| Ring Joint Gaskets style | Ring Joint Gaskets standard | Flange Standard |
| R | ASME B 16.20 API 6A | ASME B 16.5 ASME B 16.47 series A |
| RX | ASME B 16.20 API 6A | API 6B |
| BX | API 6A | API 6BX |
