In boiler operation, a safety valve must be capable of relieving pressure without allowing more than what level of rise?

In boiler operation, a safety valve is a critical component designed to relieve excess pressure from the system to prevent catastrophic failures or explosions. The requirement for a safety valve is to ensure that it can open and relieve pressure quickly enough to prevent excessive buildup within the boiler.

The safety valve must be capable of relieving pressure without allowing more than a 6% rise above the maximum allowable working pressure (MAWP) of the boiler. This standard is set to ensure that the pressure remains within safe operational limits, providing a buffer that prevents the pressure from exceeding levels that could lead to serious safety hazards.

Exceeding a 6% rise in pressure could create risks that could compromise the integrity of the boiler and surrounding equipment. This standard helps ensure that the safety valve functions effectively to maintain safe pressure levels, which is crucial for the reliability and safety of high-pressure systems.