New York Low Pressure Boiler COF Practice

What is the required duration for a hydrostatic test of a hydronic system?

1. 1 hour at no less than 50 psig

2. 2 hours at no less than 100 psig

3. 3 hours at no less than 75 psig

4. 4 hours at no less than 125 psig

The correct answer is: 2 hours at no less than 100 psig

The required duration for a hydrostatic test of a hydronic system is typically set to ensure that the system can maintain a given pressure over a specific timeframe without any leaks or failures. The standard practice often specifies that the test be carried out at no less than 100 psig for a duration of 2 hours. This allows for an adequate assessment of the system's integrity and ensures that any potential weaknesses in the piping, fittings, or connections can be identified before the system is put into operational use. Testing at this pressure and duration reflects industry standards meant to ensure safety and reliability. Hydrostatic testing at 100 psig is sufficiently high to put the components under effective stress, while the 2-hour period provides ample time to monitor for any leakage or pressure drops, which are critical indicators of system integrity. This careful approach is essential in hydronic systems where pressurization can vary operationally, and safety is paramount.