In boiler operations, which pressure is typically classified as "low pressure"?

The classification of "low pressure" in boiler operations is generally understood to encompass operational pressure levels below 15 psi. This classification is significant for several reasons, particularly in terms of safety standards, operational procedures, and regulatory oversight.

When pressures are maintained below this threshold, boilers typically require less stringent safety measures and are often easier to operate and maintain. Low-pressure systems can operate in a more forgiving environment compared to high-pressure systems, reducing the risk of hazards such as steam explosions and facilitating simpler control mechanisms.

Understanding the specific range of low-pressure systems is crucial for power engineers, as it defines the scope of training, operational protocols, and equipment design required for handling such pressures safely and effectively. This classification also aligns with the definitions set forth by various regulatory bodies in the field, ensuring consistency in operations across different facilities and industries.

In contrast, the other options suggest pressure ranges that either exceed or do not align with standardized definitions of low-pressure systems, making them more applicable to mid-range or high-pressure classifications. Hence, the clear and recognized limit of below 15 psi accurately captures the essence of what constitutes low-pressure operations in this context.