New York Low Pressure Boiler COF Practice

In a boiler, what is the maximum allowable pressure rise when a safety valve pops?

1. 4%

2. 8%

3. 5%

4. 6%

The correct answer is: 6%

The maximum allowable pressure rise when a safety valve pops is set to ensure safe operation and reliability of the boiler under normal conditions. Safety valves are critical components designed to prevent excessive pressure buildup in the boiler, which could lead to unsafe operating conditions or catastrophic failures. The code and standards typically dictate that when a safety valve opens, the pressure in the boiler can rise by a specific percentage over the set pressure before the valve re-seats. In this context, a 6% rise is considered within the acceptable limits, as it allows for minor fluctuations in system pressure without compromising safety. This margin ensures that the safety valve functions effectively to relieve excess pressure while providing adequate protection against boiler overpressure situations. Understanding these specifications is essential for maintaining the integrity and safety of boiler operations. Knowing that the acceptable limit is 6% can aid operators in ensuring their systems are compliant and functioning safely.