... stateDC 12V low voltage motorized ball valve for solar heating systemApplication:Solar thermal,under-floor,rain water,irrigation,plumbing service3 ... valves Long servicing life:100000 times.Application:Solar heating system,hot water heating and solar glycol loop),ideal for off-grid ... gear with switch. 3. Multi-angle assembling,easy to install. 4. Float ball structure,no leakage,especially suitable ...