New York Low Pressure Boiler COF Practice

A miniature boiler has a maximum allowable working pressure (MAWP) of less than what value?

1. 50 MAWP (PSI)

2. 75 MAWP (PSI)

3. 100 MAWP (PSI)

4. 125 MAWP (PSI)

The correct answer is: 100 MAWP (PSI)

A miniature boiler is defined by specific parameters that include its size and pressure limitations. According to regulations, particularly those set forth by the American Society of Mechanical Engineers (ASME), a miniature boiler is characterized as having a maximum allowable working pressure (MAWP) of less than 100 psi. This classification is important for compliance with safety standards and operational guidelines. The significance of the MAWP threshold stems from ensuring that these smaller boilers are designed and constructed with safety as a priority given their limited capacity and the pressures they must withstand. The choice of 100 psi is a key demarcation point in boiler design and regulation, allowing for proper oversight and maintenance without the complexities associated with higher pressure systems. Therefore, understanding the maximum allowable working pressure of less than 100 psi confirms that the classification is appropriate for safe operation and regulation adherence.