... 1, smart shape, perform reliably, brass gear, PPO parts, large output torque, long product life. 2, Electrical limit and machinery ... install. 4, Float ball structure, no leakage, especially suitable for heavy pollution conditions. 5, good substitution for solenoid valve. 6, High protection ... for 1, IC card meters, heat energy meters, air-warm valve. 2, HVAC and fire work. 3, Water equipment, uto ...