What type of pipe is required for safety and relief valve discharge?

The requirement for safety and relief valve discharge to be made with rigid pipe approved for the temperature of the system is crucial for ensuring both safety and structural integrity. Rigid pipe, unlike flexible pipe, provides a stable pathway for the discharge of potentially hazardous fluids or gases. This stability is essential to prevent any unintended movement or misalignment that could occur with more flexible materials, which can lead to leaks or system failure, especially under the high pressures often associated with relief scenarios.

Furthermore, the pipe must be approved for the temperature of the system to ensure that it can withstand the thermal stresses and chemical properties of the fluid or gas it is discharging. Utilizing a material that is not rated for the temperature could lead to premature failure or damage to the piping system, which represents a significant safety hazard.

By mandating rigid piping that meets specific temperature ratings, code compliance ensures that the safety and relief systems operate reliably and effectively, thus protecting people, property, and the environment.