New York Low Pressure Boiler COF Practice

What is the maximum pressure a cast iron header should not exceed?

1. 120 psi

2. 140 psi

3. 160 psi

4. 180 psi

The correct answer is: 160 psi

The correct answer is based on industry standards and the physical properties of cast iron as a material used in boiler construction. Cast iron headers are commonly employed in low-pressure boiler systems, and they have specific limitations due to their brittleness and tendency to crack under excessive stress. The maximum allowable pressure for a cast iron header is typically established at 160 psi. Exceeding this limit can compromise the integrity of the header, potentially leading to failure and posing significant safety risks. These safety standards are crucial in maintaining operational reliability and ensuring the safety of personnel as well as the boiler system itself. Understanding the material characteristics and adhering to established pressure limits is essential for safe boiler operation. The limits are based on rigorous testing and engineering analysis to ensure that all components can withstand operating conditions without failure.