Plumber Red Seal · Question
A new industrial facility requires a backflow prevention assembly to protect the potable water supply from a common boiler feed line. Which backflow prevention device is typically required for this high-hazard application where continuous pressure is present?
For high-hazard applications like boiler feed lines where there could be back-pressure or back-siphonage and a risk of toxic substances, a Reduced Pressure Prin
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Question: A new industrial facility requires a backflow prevention assembly to protect the potable water supply from a common boiler feed line. Which backflow prevention device is typically required for this high-hazard application where continuous pressure is present?
Answer options:
- Double Check Valve Assembly (DCVA) ✅ Reduced Pressure Principle Backflow Preventer (RPBA)
- Atmospheric Vacuum Breaker (AVB)
- Pressure Vacuum Breaker (PVB)
Correct answer: Reduced Pressure Principle Backflow Preventer (RPBA)
Explanation: For high-hazard applications like boiler feed lines where there could be back-pressure or back-siphonage and a risk of toxic substances, a Reduced Pressure Principle Backflow Preventer (RPBA) is typically mandated by plumbing codes to provide the highest level of protection. A DCVA is for moderate hazard, and AVBs and PVBs are primarily for back-siphonage protection in non-continuous pressure applications.
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