What does the cylinder marking "4BW-240" indicate regarding the tank?

The marking "4BW-240" on a cylinder specifically indicates the design code and service pressure of the tank. The "4BW" signifies that the cylinder is made of a certain type of material and adheres to specific design standards established for LP gas service. This designation helps ensure that the cylinder can safely contain propane or other liquefied gases under the pressures typical for storage and transport. The "240" part of the marking indicates the service pressure, which is the maximum allowable pressure at which the cylinder can be filled safely.

Understanding the significance of this marking is crucial for anyone working with gas cylinders, as it ensures proper compliance with safety regulations and assists in the selection of the appropriate cylinders for various applications, thus maintaining operational safety and efficiency. This is particularly important when managing the risks associated with gas storage and transport.