Answer :
Final answer:
Check valves, pressure relief valves, and safety valves are essential safety devices used to prevent reverse gas flow, protect against fires and explosions in various industrial processes.
Explanation:
Check valves are safety devices used on regulators, hoses, and torches to prevent reverse gas flow and protect against fires and explosions. These valves only allow fluid to flow in one direction, serving as a barrier against backflow, especially in situations where backflow could lead to dangerous outcomes like explosions.
Furthermore, safety valves are mandatory components in ensuring the safety of tanks handling gas, steam, air, or liquids by providing pressure relief. They play a critical role in maintaining safe operating conditions and preventing potentially catastrophic events such as fires or explosions.
