... limit and machinery limit design,accurate position,avoid gear with switch.3. Multi-angle assembling,easy to install.4 ... pollution conditions.5.Good substitution for solenoid or pneumatic valve.6. High protection class,can be worked in ... Product/Service (We Sell): electric valve,motorized valve,industrial valve,manual valve,pneumaticvalve/air actuator,automatic valve,actuator,IC card water meter,RF ...