What is flashback arrestor?

A flashback arrestor is a safety device used to prevent a flame from traveling back into the gas supply line or cylinder. It is typically used in welding and cutting operations where there is a risk of a flashback occurring.

Flashbacks can happen when the flame travels back into the gas line, causing a potentially dangerous situation where an explosion can occur. Flashback arrestors work by restricting the flow of gas if a flashback is detected, cutting off the fuel source and preventing the flame from traveling back into the gas supply.

Flashback arrestors are usually made of a combination of materials such as brass, stainless steel, and sintered bronze, which can withstand high temperatures and pressure. They are typically installed at the torch end of the gas line or directly on the fuel gas regulator.

It is important to regularly inspect and maintain flashback arrestors to ensure they are functioning properly and provide an additional layer of safety in welding and cutting applications.