Small ordinary electric actuator for water treatment

1Small ordinary electric actuator for water treatmentDefinition and Characteristics

Definition: A miniature valve electric actuator is a device that converts electrical energy into mechanical energy and is used to control valves (such as ball valves, butterfly valves, globe valves, etc.)

The device for opening, closing, or adjusting is designed with a focus on miniaturization, lightweight, and high precision.

Core features:

Compact structure: small size, light weight, suitable for installation environments with limited space.

High precision control: supports analog signals (such as4-20mA) or digital communication (such as Modbus) to achieve precise adjustment of valve opening.

Low power consumption: adopting high-efficiency motors and energy-saving design, suitable for long-term operation.

Strong protection: usually equipped withIP65/IP67 protection level, dustproof and waterproof, some models can be explosion-proof (Ex d Ⅱ BT4).

Intelligent functions: integrated overload protection, limit switch, fault alarm, etc., supporting remote monitoring.

IISmall ordinary electric actuator for water treatmentMain structural components

Drive motor: usually a DC motor（24VDC) or AC motor (220VAC/380VAC).

Deceleration mechanism: gear set or worm gear, reducing speed and increasing output torque.

Control module: receives control signals (switch, analog, or bus signals) and drives the motor to operate.

Position feedback: potentiometer, encoder or Hall element, real-time feedback of valve opening.

Manual operating mechanism: supports manual operation in emergency situations (such as handwheel or clutch).

Shell: Made of aluminum alloy or stainless steel, corrosion-resistant and impact resistant.

IIISmall and ordinary electric actuator for water treatmentTypical technical parameters

project parameter range

power supply voltage 24VDC、110VAC、220VAC、380VAC

output torque 5Nm~200Nm (depending on model)

travel time 10-60 seconds (90 ° rotation)

Protection level IP65/IP67/IP68

control signal Switch signal4-20mA、RS485/Modbus

Operating Temperature -20 ℃~+70 ℃ (special models can reach -40 ℃~+120 ℃)

repeatability accuracy ± 1% FS (full range)

4Small and ordinary electric actuator for water treatmentApplication field

Industrial process control: fluid regulation in the chemical, petroleum, and pharmaceutical industries.

Water treatment: automation of valves in sewage treatment and water supply and drainage systems.

Heating, Ventilation, and Air Conditioning（HVAC: Fan coil units, pipe flow control.

Energy and electricity: boiler system, gas transmission and distribution.

Food and beverage: hygiene grade valve drive, compliant withFDA standards.

5Small and ordinary electric actuator for water treatmentKey selection points

Valve type: Match valve torque requirements (such as butterfly valves requiring low torque and globe valves requiring high torque).

Control mode: switch type (on/off)/Off or adjustable (proportional control).

Power supply conditions: Available power supply on site (DC or AC).

Environmental requirements: explosion-proof, anti-corrosion, high temperature/Special requirements such as low temperature.

Communication protocol: Do you need to support itIndustrial buses such as Profibus and FF.

VISmall and ordinary electric actuator for water treatmentAdvantages and limitations

Advantage:

Flexible installation and space saving.

Fast response speed and high control accuracy.

Easy maintenance and long lifespan (usually>100000 cycles).

局限性：

Special design is required for environments such as ultra-high temperatures and strong corrosion.

When high torque is required, larger models may need to be selected.