What is another name for a lantern ring in mechanical seals?

The lantern ring is commonly known as a seal cage because it serves a specific function in mechanical seals. This component is designed to accommodate and support the stationary part of the mechanical seal while providing a chamber to allow for the proper flow of the sealing fluid.

The design of the seal cage helps to maintain optimal sealing performance by helping to manage pressure and lubrication around the sealing elements. The term "cage" also suggests a structure that encases or contains the seal, which aligns with the functionality of the lantern ring in maintaining the integrity of the seal assembly.

Other terms in the options, such as seal container, seal chamber, and seal holder, do not accurately describe the specific role and design of the lantern ring or its equivalent, the seal cage, which is primarily focused on supporting the sealing arrangements.