Level switching device e.g. low level switching device, for flexible tank in e.g. farm field, has low and high level switches respectively comprising floater, where each switch is connected to electrical circuit

摘要

The device (D1) has a support (10) for supporting a low level float switch (19) and carried by bottom of a vent (9), where the low level switch and a high level switch comprise a floater (23) and an electrical contact for opening and closing the low and high level switches. The floater of each switch is movable according to the level of liquid in a flexible tank and induces closing of the electrical contact of the switches when the floater is brought into a specific position by the liquid level, where each switch is connected to an electrical circuit.