Automatic fluid flow controlling device for stopping flow of running fluid

A device for flow control of fluid in pipelines to various utility fluid outlets like water taps, on line systems and the like by blocking fluid flow from pipeline to said utility fluid outlet when the flow exceeds a predetermined flow rate comprising:

• a top chamber vertically arranged over a bottom chamber with a separating member partitioning said chambers;
• said top camber comprises an entrance hole for receiving running fluid into the top chamber from said pipeline;
• an inner supporting stem having at its one end confined within the top chamber a spring biased pressure releasable valve plate seal adapted to block said entrance hole while the other end of said inner supporting stem extends into the bottom chamber through an opening in said separating member;
• said end of said inner supporting stem extending into the bottom chamber having a catcher plate with a detachably secured flow controlling first magnet attached with said catcher plate under magnetic interaction;
• said bottom chamber having a base with an bottom outflow opening;
• wherein when the fluid flow pressure in said pipeline acts on said spring biased pressure releasable valve plate seal to displace the same with said inner supporting stem extending into the bottom chamber to bring the said flow controlling first magnet connected at the catcher plate of the other end of said inner supporting stem closer to said bottom outflow opening and allows flow through said bottom opening until said allowable pre-determined flow rate through said pipeline and upon reaching said pre-determined flow rate the said flow controlling first magnet reached said bottom opening to thereby lock said outflow opening of said bottom chamber to thereby disconnect the fluid flow to said utility outlet, the magnetic attractive force between said catcher plate and said first magnet being reduced with respect to the tension of the catcher plate under extended position of its spring bias enabling automatized detachment of said first magnet from said catcher plate from its connection to said inner supporting stein thereby releasing the inner supporting stem with the catcher plate to revert back to its position to block said entrance hole in said top chamber by said spring biased pressure releasable valve plate seal to block any reverse flow through said entrance hole and close the pipeline communication.