What is the acetylene pressure in a full cylinder approximately?

The pressure of acetylene in a full cylinder is approximately 250 psi (1724 kPa). This value is critical for technicians to understand because acetylene is dissolved in acetone or another solvent within the cylinder. The pressure is stabilized by this combination, and it is essential to maintain safety and efficiency during usage.

Understanding the pressure allows heavy-duty technicians to make informed decisions about handling acetylene, such as knowing how to safely connect and disconnect regulators and hoses, and recognizing when a cylinder might be nearly empty based on expected pressure readings. This knowledge also helps prevent accidents that can occur due to improper handling or misuse of acetylene cylinders. The other pressure values do not accurately reflect the typical full pressure of an acetylene cylinder, which contributes to the importance of knowing the correct figure.