What is the minimum hydrostatic water test pressure required for steam and hot water piping?

The minimum hydrostatic water test pressure required for steam and hot water piping is set at 100 psig to ensure the safe operation of these systems. This pressure level is designed to verify the integrity and leak-tightness of the piping systems before they are put into service. By testing at this pressure, it allows for the identification of any potential weaknesses or failures in the piping that could lead to hazardous situations, particularly because steam and hot water systems operate at high pressures and temperatures.

Testing at this level helps to confirm that the materials and joints are capable of withstanding the operational pressures they will face. It ensures compliance with industry standards, safeguarding both the system and the occupants of the building. To effectively maintain safety and performance, conducting hydrostatic testing at 100 psig is critical for the longevity and reliability of steam and hot water piping systems.