... torque, long product life. 2, Electrical limit and machinery limit design, accurate position, avoid gear and switch. 3, Multi-assembling, ... install. 4, Float ball structure, no leakage, especially suitable for heavy pollution conditions. 5, good substitution for solenoid valve. 6, High ... for 1, IC card meters, heat energy meters, air-warm valve. 2, HVAC and fire work. 3, Water equipment, uto ...