... life. 2, Electrical limit and machinery limit design, accurate position, avoid gear and switch. 3, Multi-assembling, easy to ... Float ball structure, no leakage, especially suitable for heavy pollution conditions. 5, good substitution for solenoid valve. 6, High protection class, ... can be worked in moistconditions. IP65 Suitable for 1, IC card meters, heat energy meters, air-warm ...