... for 100,000 times. 2. Electrical limit and machinery limit design,accurate position,avoid gear with switch. 3. Multi-angle assembling ... solar glycol loop,ideal for off-grid system. Domestic water,Irrigation system,cooling/heating system,Low voltage plumbing system 7.Multiple voltage and control mode ... )/Air/Sea 2-way lower current motorized ball valve with water treament,solar hot water system