The BVS (Ball Valve Servo) is a motor to retrofit existing and installed ball valves into smart water control devices. Its wireless communication capabilities are compatible with several industry standards (Lora, Z-Wave, ..) for easy integration into existing networks. The motor is powered by a 12 V external power supply or - optional – a battery block. The variable clamps allow mounting even in complex pipe installations. The patented motor coupling ensures easy installation and precise long-term operation. The device can operate in difficult environmental conditions, even submerged underwater, and it allows to directly connect one additional local water sensor pad by cable.