A Leak Limiting Device on a regulator:

A Leak Limiting Device on a regulator is designed to enhance safety in gas distribution systems, particularly in the event of a failure such as a diaphragm rupture. When the diaphragm within the regulator fails, the leak limiting device is engineered to allow a controlled and safe amount of gas to escape rather than permitting an uncontrolled leak that could pose a safety hazard.

This controlled leakage serves two purposes: it minimizes the risk of excessive gas entering an area, which could lead to potential explosions or other dangerous situations, and it provides a measure of safety by allowing the system to still function in a limited capacity rather than shutting down completely. By preventing an uncontrolled release of gas, the leak limiting device effectively balances safety and operability in the face of equipment failure.

In contrast to other responses, this feature is distinct as it does not claim to prevent all leakage nor does it suggest that gas flow is entirely stopped. It also operates independently of external power sources, focusing solely on mechanical functions related to gas dynamics and pressure management.