ML Series Smart Electric Device
一、Product Overview
1.1 Product Introduction
The ML Series Smart Electric Device is an intelligent electric actuator product from Shanghai Wangye Valve Manufacturing Co., Ltd. It is designed for electric valve operation and supports intelligent control configurations for automated valve systems. The ML product range includes smart non-intrusive and bus-control configurations.
1.2 Product Positioning
The ML Series Smart Electric Device is positioned for valve automation applications requiring electric operation, valve position control, and intelligent control functions. Depending on configuration, ML Series products can support on-site adjustment, remote commands, and bus control.
1.3 Main Features
- Smart electric actuator configuration
- Non-intrusive intelligent configuration available
- Bus-control configuration available
- Local and remote valve operation
- Travel limit and overload torque protection
- Mechanical or LCD valve position indication
- Manual-electric switching mechanism
- Multiple control and power supply configurations
- IP65/IP67 enclosure protection, with IP68 available as an option
二、Product Functions
2.1 Intelligent Valve Control
The ML Series can be configured for intelligent valve control, providing an actuator solution for automated valve opening, closing, and position adjustment.
2.2 Local and Remote Operation
The actuator series supports on-site adjustment and remote command operation. Bus-control versions are also included in the ML Series configuration range.
2.3 Valve Position Indication
Valve position can be displayed through a mechanical indicator or LCD valve position indicator, depending on the actuator configuration.
2.4 Protection Functions
The actuator incorporates both travel limit protection and overload torque protection, providing dual protection during valve operation.
三、Applicable Valves
3.1 Multi-Turn Valve Applications
The ML Series can be used with:
- Gate valves
- Globe valves
- Throttle valves
- Diaphragm valves
- Plunger valves
- Sluice gates
3.2 Quarter-Turn Valve Applications
When equipped with a worm gear reducer, the actuator can also be used for 90° rotary equipment such as:
- Ball valves
- Butterfly valves
- Dampers
四、Technical Performance
4.1 Torque Range
The ML Series includes models from ML05 to ML505. Rated output torque ranges from 50 N·m to 5000 N·m, while the listed maximum control torque extends from 75 N·m to 6000 N·m, depending on the model.
4.2 Operating Speed
Available output speeds in the ML Series model coding include:
12, 18, 24, 36, 48 and 72 rpm.
4.3 Protection Rating
Standard enclosure protection is:
IP65 / IP67
An IP68 configuration is available as an option.
4.4 Operating Environment
Standard ambient operating temperature:
-20°C to +60°C
Special configurations are specified for temperatures from:
-40°C to +100°C
Permitted relative humidity is up to 95% at 25°C.
五、Power and Control Options
5.1 Power Supply
The standard power supply is:
Three-phase AC 380 V ±10%, 50 Hz
The series also lists special 660 V / 415 V configurations and single-phase 220 V / 60 Hz configurations.
5.2 Control Configurations
The ML Series model coding includes the following control options:
- S – Standard
- F – 4–20 mA feedback
- R – Remote
- K – Standard with button
- D – Special
5.3 Smart Configurations
The product coding also identifies:
- I – Smart non-intrusive
- B – Bus
- D – Special configuration
六、Structure and Operation
6.1 Main Structure
The ML Series actuator consists of six principal sections:
- Motor
- Reducer
- Control mechanism
- Manual-electric switching mechanism
- Handwheel
- Electrical section
6.2 Manual-Electric Switching
The actuator incorporates a manual-electric switching mechanism, allowing manual operation when required.
6.3 Motor
The actuator uses a three-phase asynchronous motor. Standard short-time duty is 10 minutes, with a special 30-minute configuration available.
七、Industrial Applications
7.1 Application Industries
The ML Series is intended for valve control applications in industries including:
- Power generation
- Steel
- Petrochemical
- Metallurgy
- Water treatment
- Paper industry
7.2 Product Selection
Selection should be based on the required valve torque, operating speed, connection type, control method, voltage, and operating conditions.
The ML Series provides multiple model and configuration combinations to match different valve automation requirements.
