200,000 times operation smart electric actuator in rated load with high quality ball valve

Specification

Features

• Quarter turn operation with modulating controlled by 4-20mA/1-5V/2-10V input signal
• Integral design of Motor/control box/housing to make whole actuator compact
• Over torque protection by torque test function of smart full potted controller
• High performance EMC with EFT, ESD and high voltage surge tested for control pack
• Heavy duty motor with thermal overload protection
• Actuator output drive position is proportional to input signal
• Up to 1200 times/hour starting frequency and over 200,000 times starting test with full rated load
• IP 67 and Type 4X hard die cast aluminum alloy housing with NBR sealing
• Valve position indicator/flat indicator or convex indicator available
• Manual override with wrench or handwheel
• CSA Certification per UL and CSA standard/CE marked/RoHS 3.0 passed

Description

DCL modulating type electric actuators are S4 intermittent periodic duty operation. Actuator sequential, identical starts, runs and rests cycles with rated load. As the starting current affects temperature rise, if motor is not proper designed, actuator will be easily shut down during high frequently starts by thermal overheat protector in motor and actuator body will be very hot.

DCL smart modulating type electric actuator is equipped with an electric positioning system(EPS) positioner. The angle of the output drive is proportional to the 4-20mA or 2-10V or 1-5V input control signal. The motor’s current is also monitored by the smart controller. When motor is stalled, the current will be suddenly sharply increase. Controller will cut off motor power 3 seconds after getting the increasing current. This is electronic over torque protection, which is more precisely then mechanical over torque protection.

Actuator has been rigorous tested by CSA per UL and CSA standard. The duty rate can be over 70% for all series. The EPS system is self-calibrating which virtually eliminates "hunting" and provides an output position monitoring signal as standard.