Which of the following is considered a safety device of the Deaerating Feed Tank (DFT)?

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Multiple Choice

Which of the following is considered a safety device of the Deaerating Feed Tank (DFT)?

Explanation:
A vacuum breaker is the safety device that protects a Deaerating Feed Tank from dangerous vacuum conditions. When the tank cools or steam condenses, the internal pressure can drop below atmospheric. Without relief, a strong vacuum could form and damage the tank or piping and disrupt normal operation. The vacuum breaker automatically opens to atmosphere at a set negative pressure, admitting air and breaking the vacuum, keeping the system safe and ready to restart. The other items are monitoring instruments rather than safety relief devices. A pressure gauge only shows pressure, a high-level alarm signals when the water level is too high, and a temperature sensor monitors heat. They help you detect issues but don’t automatically relieve a vacuum like a vacuum breaker does.

A vacuum breaker is the safety device that protects a Deaerating Feed Tank from dangerous vacuum conditions. When the tank cools or steam condenses, the internal pressure can drop below atmospheric. Without relief, a strong vacuum could form and damage the tank or piping and disrupt normal operation. The vacuum breaker automatically opens to atmosphere at a set negative pressure, admitting air and breaking the vacuum, keeping the system safe and ready to restart.

The other items are monitoring instruments rather than safety relief devices. A pressure gauge only shows pressure, a high-level alarm signals when the water level is too high, and a temperature sensor monitors heat. They help you detect issues but don’t automatically relieve a vacuum like a vacuum breaker does.

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