In relation to backflow prevention, what does RPZ stand for?

The abbreviation RPZ stands for Reduced Pressure Zone. This system is specifically designed to prevent the backflow of contaminated water into the potable water supply. The RPZ device features two independent check valves and a pressure differential relief valve located between them. This arrangement maintains a pressure lower than the supply pressure, ensuring that in the event of a drop in pressure within the system, contaminated water cannot flow back into the clean water source.

The design of the RPZ is crucial in various applications, especially in cases where there is a potential for high levels of contamination. Understanding this technology is vital for professionals working in plumbing and water management to ensure public health and safety by effectively preventing backflow incidents.