What defines a "high-pressure boiler"?

A high-pressure boiler is defined as one that operates at pressures exceeding 15 psi. This classification is significant because the operational safety, maintenance requirements, and regulatory standards for boilers operating above this pressure differ markedly from those for low-pressure boilers, which typically operate at or below 15 psi.

Understanding this distinction is crucial for boiler operators and maintenance personnel in order to adhere to safety regulations and ensure proper handling and operational procedures. Generally, high-pressure boilers involve more complex systems and require stricter compliance with safety protocols due to the potential hazards associated with high-pressure steam and the resultant energy. This definition also aligns with many industry standards and codes, which emphasize the importance of recognizing the pressure classifications in terms of design, inspection, and operation for the safe function of boiler systems.