Final answer:
The maximum allowable natural gas pressure in an industrial mechanical room varies depending on regulations and safety standards. It typically ranges from 0.2 to 2.5 psi. The specific maximum pressure will depend on factors such as equipment, gas type, and applicable safety codes.
Step-by-step explanation:
The maximum allowable natural gas pressure in an industrial mechanical room can vary depending on the specific regulations and safety standards of the country, region, and industry involved. However, in general, industrial mechanical rooms are designed to handle gas pressures within the range of around 0.2 to 2.5 pounds per square inch (psi).
It's important to note that the exact maximum allowable pressure will be determined by various factors such as the specific equipment and systems in the mechanical room, the type of gas being used, and the applicable safety codes and standards.
For example, in the United States, the National Fire Protection Association (NFPA) has established standards for handling different types of gases, such as NFPA 54 for natural gas. These standards provide guidance on various aspects, including the maximum allowable pressure for safe operation.