What is the maximum water temperature in a deaerator?

What is the maximum water temperature in a deaerator?

• A. 212°F
• B. 180°F
• C. 200°F
• D. 230°F

Answer: (A)

Deaerators work by heating feedwater with steam so dissolved gases come out of solution as the water nears its boiling point. The temperature inside a deaerator is determined by the operating pressure. When the unit is open to atmosphere, the water can only reach the atmospheric boiling point, which is 212°F (100°C). Pushing beyond that would require a pressurized deaerator, which raises the boiling point accordingly. So the maximum water temperature in a typical deaerator is 212°F.

Deaerators work by heating feedwater with steam so dissolved gases come out of solution as the water nears its boiling point. The temperature inside a deaerator is determined by the operating pressure. When the unit is open to atmosphere, the water can only reach the atmospheric boiling point, which is 212°F (100°C). Pushing beyond that would require a pressurized deaerator, which raises the boiling point accordingly. So the maximum water temperature in a typical deaerator is 212°F.