GB/T 25178-2020
ActiveReduced-pressure type backflow preventer
减压型倒流防止器
Application Summary AI generated
This standard specifies the technical requirements, test methods, and inspection rules for reduced-pressure type backflow preventers used in drinking water supply systems. It is applied in building construction and municipal water engineering to prevent contaminated water from flowing back into the potable water network due to backpressure or backsiphonage. The standard ensures these devices meet safety and performance criteria for installation in cross-connection control scenarios, such as in commercial, industrial, and residential plumbing systems.
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