What pressure is attack hose tested at during annual testing?

The correct testing pressure for attack hose during annual testing is 300 psi (2068 kPa). This standard pressure ensures that the hose can withstand high pressures encountered during firefighting operations without failure. Testing at this pressure not only checks for leaks but also verifies the integrity and safety of the hose, ensuring it meets the necessary guidelines set by organizations such as the National Fire Protection Association (NFPA).

A pressure of 200 psi might be too low to fully assess the resilience and capability of the hose under typical operational scenarios, while higher pressures like 400 psi and 500 psi might exceed the specifications for most attack hoses, which could lead to unnecessary risk of damaging the hose during testing. Thus, 300 psi represents a balanced approach, ensuring reliability while maintaining safety standards for firefighting equipment.