What should be verified before opening cylinder valves?

Before opening cylinder valves, it is essential to verify that the adjusting screws on the regulators are loose. This step is crucial because if the adjusting screws are tight, any sudden release of pressure when opening the cylinder valve can lead to an uncontrolled flow of gas, which poses serious safety risks. Loose adjusting screws allow for a more controlled and safe gas flow adjustment once the cylinders are opened.

In practical scenarios, ensuring that the regulators function correctly and that gas flow can be finely managed contributes significantly to the safety of operations involving gaseous materials. This practice aligns with safety protocols in welding and cutting applications, where precision and safety are paramount.