What type of extinguishers require testing at 3000 psi?

Carbon Dioxide Extinguishers are designed to operate at pressures typically around 800 to 900 psi. However, the testing for these cylinders involves subjecting them to a high-pressure water test. The industry standard requires that these extinguishers be tested at a pressure of 3000 psi to ensure they can safely contain the pressurized CO2 gas.

This rigorous testing process is crucial because any defects or weaknesses in the cylinder material could lead to failure under operational conditions. By testing at such a high pressure, it ensures the integrity and reliability of the extinguisher, allowing it to be considered safe for use in fire suppression.

Understanding the importance of proper testing helps ensure that all equipment remains effective in emergency situations, safeguarding lives and property.