What is the maximum safe working pressure for Acetylene?

The maximum safe working pressure for acetylene is 15 psi. Acetylene is a highly flammable gas that is often used for welding and cutting applications. Due to its unstable nature, particularly at high pressures, it is essential to handle it with care to prevent explosions. The 15 psi limit is established to ensure safety while allowing for effective use in various applications.

When acetylene is stored in cylinders, it is typically dissolved in acetone or another solvent to stabilize the gas and prevent it from reaching high pressures. Exceeding the recommended pressure can lead to dangerous situations, including the risk of the gas decomposing explosively. Understanding this limit is crucial for anyone working with or around acetylene in an industrial or construction setting.