Lq Series Quarter-Turn Electric Actuator
ISO, CE
AC380V
Electric Power
Ordinary Temperature
Flange
Alloy
HELI
Cardboad Carton
CE, ISO, SGS
Zhejiang, China
8481804090
Product Description
LQ quarter-turn electric actuator for valves with 90 degree movement
Key Features:
- High Torque Output: Delivers torque output up to 2000 Nm, suitable for controlling large-diameter valves.
- Intelligent Control System: Supports various industrial protocols such as Modbus and Profibus, making it easy to integrate with PLC and DCS systems.
- Accurate Position Feedback: Utilizes advanced angle sensing technology to ensure valve opening precision down to 0.1%.
- Automatic Fault Detection: Built-in intelligent diagnostics system that detects the actuator's working condition in real-time and provides alerts.
- Manual Operation Capability: Equipped with an emergency manual operation mechanism for manual intervention in case of power failure or malfunction.
- Fully Sealed Protection: IP67 protection rating, making it waterproof and dustproof for harsh working environments.
- Low Power Consumption: Designed for energy efficiency, reducing long-term operating costs.
Instructions for Use:
- Installation Preparation: Ensure the valve and actuator flange installation positions are aligned, tighten all bolts, and ensure firm installation.
- Power Connection: Connect the electric valve actuator to a 220V power supply. Refer to the product label for specific voltage requirements.
- System Setup: Set parameters such as stroke limits, torque settings, and switching logic via the control panel or upper-level computer.
- Testing & Operation: Perform manual mode testing before running the actuator to ensure accurate valve positioning at full open and full close. Switch to automatic mode after successful testing.
- Regular Maintenance: Check the device quarterly to ensure proper sealing, wiring, and transmission mechanisms. Lubricate and replace parts as necessary.
Customer Reviews:
- Engineer Wang (5-Star Review): "The EVM-500 performed excellently in our factory's automated water treatment project. It's easy to install, highly precise, and the remote control feature has significantly reduced our maintenance workload."
- Manager Li (4-Star Review): "We purchased multiple units for valve control in oil pipelines. The devices are stable and reliable with a very low failure rate. This is a brand we trust."
- Technician Zhao (5-Star Review): "The IP67 protection rating allows us to use it in humid environments without concerns, saving a lot on protective and maintenance costs."
Technical Specifications:
- Power Supply: AC 220, 50Hz
- Output Torque: 2000 Nm
- Stroke Range: 0° - 90°
- Control Accuracy: ±0.1%
- Communication Protocols: Modbus, Profibus, HART (optional)
- Protection Rating: IP67 (optional IP68)
- Operating Temperature: -30°C ~ 70°C
- Material: Aluminum alloy casing with anti-corrosion coating
- Weight: 19kg
- Mounting Method: ISO 5211 standard flange
Application Fields:
- Petrochemical Industry: Suitable for precise control of valves in liquid and gas pipelines.
- Water Treatment Systems: Used in water supply and wastewater treatment plants for fluid control.
- Energy & Power: Widely applied in fluid transport control systems in thermal power plants and nuclear power plants.
- Manufacturing Automation: Integrated with PLC for automation in manufacturing processes.
- Building Automation Systems: Used for HVAC valve control in smart buildings.
Purchase Information:
- Warranty Policy: 12-month warranty, with lifetime maintenance support for motors and sensors.
- Shipping Method:by sea or by air




Our products are widely used in Oil&Gas, HVAC, Marine, Mining.Pulp& Paper,Food&Beverage,Power, Water& wasterwater,Pharmaceutical and Chemical industries around the world...Products have obtained a series of certificates from DNV.EAC, CE, ROHS, SIL,ATEX,CNEX,3C,IP67,IP68.
We insist on "Quality-driven, Technical innovator, Honestservice" , providing the best valve &actuator solutions.






1. Who are we?
We are based in Zhejiang, China, start from 2003,sell to Domestic Market(47.00%),South America(12.00%),Southeast Asia(10.00%),Northern Europe(5.00%),Eastern Europe(4.00%),Southern Europe(3.00%),Western Europe(3.00%),Eastern Asia(3.00%),South Asia(3.00%),North America(3.00%),Oceania(3.00%),Africa(2.00%),Mid East(2.00%). There are total about 101-200 people in our office.
2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.What can you buy from us?
Electric Actuator,pneumatic actuator,damper actuator,motorized ball valve,motorized butterfly valve
4. Why should you buy from us not from other suppliers?
Wenzhou Heli is a professional manufacturer concerned with design,development and production of electric actuator for 20 years.We own 51 new utility patents ,3 invention patents and 2 software copyrights.We have CE,ROHS,SIL,EMC,ATEX,3C certificates.
5. What services can we provide?
Delivery Terms: FOB,CFR,CIF,EXW,FCA
Payment Currency:USD,CNY;
Payment Type: T/T,L/C,Cash;
Language:English,Chinese
We are based in Zhejiang, China, start from 2003,sell to Domestic Market(47.00%),South America(12.00%),Southeast Asia(10.00%),Northern Europe(5.00%),Eastern Europe(4.00%),Southern Europe(3.00%),Western Europe(3.00%),Eastern Asia(3.00%),South Asia(3.00%),North America(3.00%),Oceania(3.00%),Africa(2.00%),Mid East(2.00%). There are total about 101-200 people in our office.
2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.What can you buy from us?
Electric Actuator,pneumatic actuator,damper actuator,motorized ball valve,motorized butterfly valve
4. Why should you buy from us not from other suppliers?
Wenzhou Heli is a professional manufacturer concerned with design,development and production of electric actuator for 20 years.We own 51 new utility patents ,3 invention patents and 2 software copyrights.We have CE,ROHS,SIL,EMC,ATEX,3C certificates.
5. What services can we provide?
Delivery Terms: FOB,CFR,CIF,EXW,FCA
Payment Currency:USD,CNY;
Payment Type: T/T,L/C,Cash;
Language:English,Chinese