| Customization: | Available |
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| Temperature: | Low Temperature |
| Certification: | CE, ISO9001 |
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1. Product Overview
The BT series electric actuator is one of the actuator unit products in the DDZ series of electric unit combination instruments. The actuator and the regulating valve body form an electric regulating valve, which is the actuator regulating mechanism in industrial process measurement and control systems. It can be widely applied in various industries such as petroleum, chemical, water treatment, shipbuilding, papermaking, power plants, heating, building automation, and light industry. It uses 220V (110V, 380V) AC power supply and 24V DC power supply as the driving power supply, and 4-20mA current signal or 0-10V DC voltage signal as the control signal, which can make the valve move to the desired position and achieve its automatic control. The maximum output torque reaches 25000N
2. Performance characteristics and working principle
2.1 Performance Characteristics
Multiple work configuration options, flexible and convenient;
Control signal: current signal (4-20mA or other non-standard signal), voltage signal (0-10V or other non-standard signal)
Positive and negative effects can be selected, making it easy to achieve split range control mode. Output signal: current signal (4-20mA or other non-standard signal)
Voltage signal (0-10V or other non-standard signals) communication interface: RS485;
Flow characteristics: linear, fast opening, slow opening, custom valve action direction: positive and negative action selection
Chinese and English LCD display: menu operation, more user-friendly human-computer interaction; Simpler to use;
Self adjustment of stroke: Innovative mechanical design, easy and fast adjustment of stroke position, adaptive adjustment of input signal and stroke relationship, meeting the needs of valves with different strokes;
Self diagnostic function: The actuator automatically records working parameters during operation. When the actuator malfunctions, the main control module promptly detects and alarms, and the fault is displayed on the LCD screen and transmitted to the control center through a switch signal.
More convenient operation: Innovative structural design, non-invasive operation, no need to open the casing for easy operation. Switch between remote control and local control buttons. Handwheel priority mode, once ejected, automatically protects the actuator, making manual operation easier and the handwheel safe and reliable.
The control circuit is more reliable: the motor drive adopts contactless control, no sparks, and has a long service life; Wide power supply adaptability range, 380V power supply model phase adaptive, users do not need to worry about phase connection errors; The circuit module is fully digital controlled, without the presence of mechanical potentiometers, so users do not have to worry about the impact of mechanical vibration and transportation on product accuracy; Adopting advanced anti-interference technology, it can handle even harsh environments with ease, and the new "watchdog" technology keeps away from the troubles of "crashes";
Reverse direction of actuator movement delay protection, longer lifespan of power transmission components;
Lower work noise.
2.2 Working principle
The working principle of the BT series intelligent linear electric actuator is shown in Figure 1. The intelligent control unit is composed of a single-chip microprocessor and peripheral chips. It receives standard 4-20mA DC signals (or voltage signals), and after signal conditioning and A/D conversion, it is sent to the microprocessor. The microprocessor sends the processed data to the LCD display to adjust the results. The control signal generated by the operation and processing drives the motor, and after variable speed, it drives the transmission screw, generating mechanical travel. After position detection, it is fed to the microprocessor for data processing, completing the action of "signal and position" correspondence.
In addition, the system also has communication function and can receive instructions from the upper computer for remote digital control. Operations can be performed on the intelligent controller panel, and local control of the actuator can also be achieved through menus and buttons. This system also has fault alarm and independent analog 4-20mA position feedback output.
Outline dimension table of actuator
| model | External dimensions | |||||||||||
| A | B | C | D | E | H | 0 | L | M | P | R | M1 | |
| BT 202 | 460 | 235 | 65 | 35 | 20 | 25 | φ 100 | 100 | M16 | φ 20 | φ 186 | M10 |
| BT 204 | ||||||||||||
| BT 208 | 485 | 235 | 45 | 35 | 20 | 25 | φ 120 | 100 | M16 | φ 20 | φ 198 | M12 |
| BT 210 | 505 | 255 | 55 | |||||||||
| BT 312 | 717 | 449 | 70 | 45 | 25 | 40 | φ 120 | 155 | M20 | φ 32 | φ 232 | M16*1.5 |
| BT 314 | ||||||||||||
| BT 316 | ||||||||||||
| BT 320 | ||||||||||||
| BT 325 | ||||||||||||
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