What is the hydro test pressure for steam systems?

The hydro test pressure for steam systems is indeed 1.5 times the working pressure for a duration of 10 minutes. This standard is critical in ensuring that the piping system can withstand pressures higher than its normal operating conditions, thus verifying the integrity and safety of the system.

By applying a test pressure that is 1.5 times the normal working pressure, operators ensure that any potential weaknesses or defects in the piping can be identified prior to putting the system into service. Additionally, the 10-minute duration allows for any potential leaks to manifest themselves during the test, giving operators adequate time to observe and address any issues.

This approach aligns with best practices for maintaining safety and reliability in high-pressure piping systems, ensuring they can handle the stresses of their intended operational conditions without failure.