Adjustable dead space type basic error ≤ 1% electric compact actuator

Adjustable dead space type electric compact actuator with basic error ≤ 1%

Features

• Quarter turn operation proportional to input signal
• High performance EMC with EFT, ESD and high voltage surge tested for control pack
• Heavy duty motor with thermal overload protection
• Valve position indicator/flat indicator or convex indicator available
• Output 4-20mA signal for valve position
• Standard ISO5211 multi-flange valve mounting
• Full potted multi-function smart control pack resistance to vibration and moisture
• World leading anti-interference ability, control accuracy and sensitivity
• Self-calibrating and problem self-checking function
• Unique integral motor/control pack/ housing design with very small size
• Weather proof aluminum alloy enclosure with thermally bonded polyester coating
• C3 level corrosion resistance with 1000 hours salt spray test
• Manual override with wrench or handwheel
• CSA Certification per UL and CSA standard/CE marked/RoHS 3.0 passed

Description

The DCL compact modulating electric actuator controls the opening of ball valves, butterfly valves and other quarter-turn valves. Typical applications include HVAC, water treatment and industrial processes requiring flow, pressure, temperature or level regulation.

The integrated controller accepts 4–20 mA, 1–5 VDC or 2–10 VDC commands and provides 4–20 mA valve-position feedback for compatible PLC, DCS or building control systems. The literature specifies a basic error of no more than ±1%, with reversing and repeatability errors of no more than 1%. An adjustable deadband of 0.5%–5.0% allows the response setting to be matched to the application.

These specifications describe actuator positioning. Overall process-control performance also depends on valve flow characteristics, sensors, control logic and operating conditions.

The controller uses resin encapsulation to reduce direct exposure of electronic components and provide structural protection against moisture and vibration. The motor incorporates PTC thermal protection, while electrical and mechanical limits control travel. Modulating versions use S4 intermittent duty, so operating frequency and load requirements should be checked during selection.

The main models feature an aluminum-alloy enclosure with IP67 protection as standard and IP68 optional. The stated ambient-temperature range is -25°C to +55°C. ISO 5211 mounting interfaces support direct installation on compatible valves. Power supply, position indication, manual operation and communication options must be confirmed for the selected model.

Specification