Which of the following is considered an important safety feature in vapor recovery systems?

In vapor recovery systems, automatic shut-off valves play a crucial role in maintaining safety and functionality. These valves are designed to automatically close in response to certain conditions, such as excessive pressure or vapor flow that exceeds the system's designed capacity. This action helps prevent leaks and potential hazards associated with the release of volatile organic compounds (VOCs) into the atmosphere, protecting both the environment and human health.

Additionally, the automatic shut-off mechanism ensures that the vapor recovery system operates within safe parameters, reducing the risk of system malfunction or failure, which could lead to dangerous situations such as fires or explosions. With effective automation, these valves enhance the reliability of the system by providing timely responses to abnormal operating conditions, thereby safeguarding both personnel and equipment involved in vapor recovery operations.