The maximum allowable pressure in a heating boiler ensures:

The maximum allowable pressure in a heating boiler is primarily established to ensure a safe operational standard. This pressure limit is set to prevent the occurrence of dangerous situations such as equipment failure or explosions, which can result from excessive pressure. By adhering to these established limits, operators can maintain a level of safety for personnel and infrastructure, reducing the risk of accidents and ensuring compliance with regulatory standards.

While the other aspects mentioned—such as longer service life, lower running costs, and higher efficiency—can be influenced by operating within safe pressure limits, they are not the primary reasons for defining the maximum allowable pressure. The main focus of these standards is to prioritize safety above all else, making it crucial for operators to understand and adhere to these guidelines for safe boiler operation.