New York Low Pressure Boiler Certificate of Fitness (COF) Practice Test 2026 - Free COF Practice Questions and Study Guide

A blow-off valve serves a crucial function in the maintenance of a boiler system. It is specifically designed to release water from the boiler, which is essential for the safe and efficient operation of the system. By allowing operators to remove sediment, scale, and other impurities that may accumulate in the boiler, the blow-off valve helps maintain water quality and overall boiler performance. Regularly using this valve ensures that the boiler operates efficiently and extends its lifespan.

The other options describe different functions that are not associated with the blow-off valve. Increasing pressure pertains to valves that control pressure settings, safety features address overheating through temperature regulation, and mechanisms that manage water levels involve different types of valves and controls, all distinct from the purpose of a blow-off valve. Understanding these distinctions can be critical for safe boiler operation and effective maintenance practices.