When a quick-disconnect is used on a gas supply system, what device must be included in the piping system?

In a gas supply system that incorporates a quick-disconnect, it is essential to have a shut-off valve located upstream of the disconnect. This is critical for safety and operational efficiency. The shut-off valve allows for the immediate cessation of gas flow when necessary, particularly during maintenance or emergencies. It ensures that, when the quick-disconnect is engaged or disengaged, the gas supply can be controlled effectively to prevent any potential leaks or hazards.

Including a shut-off valve helps mitigate risks associated with the potential release of gas when the quick-disconnect is disconnected. It ensures that, even if the connection is broken, there is still a dense barrier that secures the gas supply, protecting both equipment and personnel from exposure. This device provides an added layer of safety, adhering to best practices and industry regulations.