Visszafolyásvéd

Visszafolyásvéd is a Hungarian term that translates to "backflow preventer" in English. It refers to a device installed in a plumbing system to prevent the reverse flow of water or other liquids. This is crucial for maintaining water quality and safety. Backflow can occur due to changes in pressure within the system, such as a sudden drop in supply pressure or an increase in pressure on the downstream side.

There are several types of backflow preventers, each designed to address different levels of risk. The simplest form is a check valve, which allows water to flow in only one direction. More complex devices, like reduced pressure zone (RPZ) backflow preventers, offer a higher level of protection by creating a zone of reduced pressure between the supply and the potential source of contamination.

Backflow preventers are commonly found in residential, commercial, and industrial settings. They are particularly important in applications where there is a potential for non-potable water or other substances to mix with the clean drinking water supply. Examples include irrigation systems, fire sprinkler systems, and connections to industrial processes. Regular testing and maintenance of backflow preventers are essential to ensure their continued effectiveness. They are a vital component of cross-connection control programs, safeguarding public health and the integrity of water distribution networks.