New York Low Pressure Boiler COF Practice 2025 - Free Practice Questions and Study Guide

For a boiler with over 500 square feet of heating surface, the requirement for safety valves is based on the capacity and the specific regulations set forth by the New York State Department of Buildings. Typically, a boiler of this size is required to have two safety valves to ensure adequate pressure relief.

The rationale behind requiring two safety valves is to ensure that there is a sufficient safety margin in case one valve fails. This redundancy helps in managing the pressure effectively and minimizes the risk of accidents due to pressure build-up, thereby enhancing overall safety during operation. Each safety valve provides a critical line of defense against overpressure conditions, which can arise due to operational anomalies or system malfunctions.

Smaller boilers with less heating surface may only require a single safety valve, underlining the increased risk associated with larger boilers that necessitate additional safety measures.