The use of latching magnet systems for valves offers the following advantages:
- Heating of the fluid or the environment by heating a permanently switched coil is reduced to almost zero.
- Elimination of the energy required to hold the magnet in one position. This makes highly energy-efficient systems possible and it is particularly suitable for battery-powered mobile systems.
A disadvantage of latching valves however is, that there is no de-energised safety position, as the valves maintain their current position in the event of a power failure and do not return to the "normal" position. In some applications, a normally closed position is mandatory to interrupt the flow of the fluid, if the unit shuts off unexpectedly due to system or power failure.
