AMPLIFICATORI DI IMPULSI COMANDATI, IN PARTICOLARE PER IMPIANTI DI IRRIGAZIONE

A control impulse intensifier for an impulse fluid flow system adapted to be situated between a supply line and a pipe line comprises a housing situated between the supply line and the pipe line and having an outflow passage therein, a hollow valve element situated inside the housing to define an inner valve space inside the valve element communicating with both the outflow passage and the pipe line and an outer valve space between the housing and the valve element, a flexible cylindrical device situated at least inside the hollow valve element, and a valve core situated inside the flexible cylindrical device and having at least one path outside the valve core. The hollow valve element is provided with a sealing flange outside thereof so that the outer valve space is divided into a supply side communicating with the supply line and a pipe side communicating with the pipe line, at least one first boring passing through the valve element at the supply side, and at least one second boring passing through the valve element at the pipe side. The second boring includes a device to prevent fluid from passing therethrough from the outer valve space of the pipe side.