8 Questions
What is the purpose of a vacuum breaker in a boiler?
To prevent the boiler from flooding by allowing air into the boiler when pressure drops below atmospheric
Where is a vacuum breaker typically installed?
On the water column steam piping connection to the boiler
What is the function of a drum vent valve in a boiler?
To allow air to escape from the boiler when it is being filled with water and to release air and non-condensable dissolved gases during warm up
Why is it important to release air and non-condensable dissolved gases from the boiler during warm up?
To prevent corrosion in the return line and possible air binding in the main steam system
What is the purpose of an air separator in the supply line to a hot water heating system?
To prevent air from entering the heating system
Why does a hot water boiler not require a gauge glass?
Because the boiler is completely filled with water during normal operations
What is the purpose of maintaining a consistent water level in a steam heating boiler?
To reduce fuel consumption and thermal shock
When may low-pressure steam heating boilers remain off for several hours or days?
During the spring or fall months when controlled by an outside air temperature sensor
Test your knowledge of non-code fittings used on hot water heating boilers. Learn about the additional fittings and components beneficial for proper system operation.
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