High-quality solenoid valves from M & M in a modular design. This allows for a greater selection of valves and, in particular, coils, which are now available in all common operating voltages such as 12 V/DC, 24 V/DC, 24 V/AC, and 230 V/AC. Another advantage of the modular structure is that if a coil fails, it can be easily purchased and replaced individually. Therefore, complicated removal and reinstallation of the valve is no longer necessary.