Where would the usage of a RTJ gasket commonly be found?

The usage of a ring-type joint (RTJ) gasket is commonly found in high-pressure systems due to its design that provides a robust sealing capability. An RTJ gasket has a unique shape that fits into grooves machined into the flange faces, allowing it to withstand the high internal pressures and temperatures. This design ensures an effective seal and minimizes the risk of leaks, which is crucial in applications where pressure is significant, such as in oil and gas pipelines, chemical processing plants, and various high-pressure industrial systems.

In contrast, low-pressure systems typically use different types of gaskets, as the sealing requirements are not as stringent. Other systems like water or air systems may not necessitate the specialized design and material composition of RTJ gaskets, leading to the use of flat gaskets or other simpler sealing methods. Thus, the specific characteristics of RTJ gaskets make them particularly suitable for high-pressure applications.