Non return valves effectively secure any rooms located on the lower floors against flooding caused by back flow of storm water and sewage which can result from intense rain, thaw or floods. For use in horizontal pipes, the unit closes the pipeline automatically when back flow occurs.
Non return valves effectively secure any rooms located on the lower floors against flooding caused by back flow of storm water and sewage which can result from intense rain, thaw or floods. For use in horizontal pipes, the unit closes the pipeline automatically when back flow occurs.