How do you check for leaks after replacing a hose on an oxy-fuel system?

The most reliable method for checking for leaks after replacing a hose on an oxy-fuel system is to apply soapy water to the connections. When you spray soapy water onto the fittings, any gas that escapes from a leak will create bubbles in the soap solution. This provides a clear visual indication of where the leak is located, allowing for prompt repairs to ensure safety.

Using soapy water is a common practice in the industry because it is a safe and effective technique. The water helps to slow down the escaping gas, allowing the bubbles to form, which would not happen with a simple dry surface. This method is both economical and easy to use, making it the preferred choice for leak detection in oxygen systems.

Other methods, such as using a lighter or striker to create a flame or spark, would pose an extreme safety risk in an oxy-fuel environment. Creating a spark or flame near any oxygen source can lead to a dangerous situation, including fire or explosion. Similarly, while oil lubricants may work for some applications, they are not standardized for leak detection and do not provide the immediate visual feedback that soapy water does.