Pipe separator
A pipe disconnector (RT) is a safety fitting that visibly separates the drinking water line when a certain response pressure is to be set, and thus prevents possibly contaminated drinking water from flowing back into the drinking water line. The response pressure is 0.5 bar above the outlet pressure of the pipe disconnector, which is the subsequent line network pressure.
The pipe separator is used in accordance with the hazard classes of drinking water. It is available in three versions: pipe separator EA1, EA2 and EA3.
Pipe disconnector EA1 is constantly in the flow position and disconnects when the inlet pressure falls below the response pressure of the pipe disconnector. The reduced inlet pressure releases a spring, the closing body of which blocks the drinking water pipe. A backflow preventer prevents the line from running empty. The visible separation of the pipe is 20 mm.
Pipe disconnector EA2 is constantly in the disconnected position and only switches to flow position when water is drawn off. It is controlled hydraulically or electrically.
Pipe separator EA3 works like EA2, the installation location is at least 300 mm above the highest possible water level at the removal location. Backflow preventer in the RT and in the direction of flow after the RT are not permitted so that the supply line to the extraction point can drain and dry out in order to prevent germ migration .