Product
Overview of DKZ Direct Travel Electric Actuator:
DKZ type direct-stroke electric actuator adopts the new technology of "S type electric actuator development: WF-S type position transmitter composed of precise conductive plastic potentiometer and foreign ASIC. DKZ type direct-stroke electric actuator can not only be used with EVP2001 type valve positioner, but also can be used with newly developed ZXQ20 type valve positioner. Model 03 and 2004 valve positioners are matched to make the whole control system more stable, more reliable and more functional. Therefore, the electric actuator not only improves the reliability, accuracy, load capacity, signal quality coefficient and other performance of the original product, but also widens the environmental conditions, which is of great significance. Therefore, according to the requirements of DKZ electric actuator, users can automatically select control unit instruments and assemble them into a control unit system.
DKZ direct stroke electric actuator features:
1. The WF-S position transmitter uses a highly reliable conductive plastic potentiometer with 1/250 resolution.
2. Using integrated circuit technology, it has low power consumption, low temperature rise and stable and reliable constant current output.
3. Limited control can be designed within the prescribed range of travel.
4. It is easy to adjust zero point and stroke with potentiometer.
5. To adjust the anti-zero position (20-4) mA DC, only two points of the potentiometer (1) and (3) need to be adjusted slightly.
6. The electrical components used for position feedback are screened and assembled and tested at high and low temperatures. Guarantee its executive body;
DKZ Direct-stroke Electric Actuator Uses:
DKZ type direct-stroke electric actuator can be used with transmitter, regulator and other instruments. It takes power supply as power, receives 4-20mA DC signal, converts it into linear displacement corresponding to input signal, automatically operates valve and other adjusting mechanism, completes the task of automatic adjustment, or uses electric operator to realize remote control. Manual control. The instrument can be widely used in the regulation system of power plant, steel plant, chemical industry, light industry and other industrial sectors. The instrument is suitable for non-corrosive gases, ambient temperatures ranging from - 25 +70, and relative temperatures less than 95%.
Main technical parameters of DKZ direct stroke electric actuator:
1. There is a position transmitter in the switching electric actuator to output current signal.
2. Intelligent electric actuator has intelligent module, which can input 4-20mA signal to control the valve intelligently. According to the user's needs, there are guideways under this module can also be installed in the control box. Specific wiring and performance can be referred to the module instructions.
3. The actuator is an on-site installation structure. The reducer box is equipped with AC servo motor and conductive plastic potentiometer. The reducer has manual parts, output shaft, mechanical limit block, etc.
4. The connection and adjustment between actuator and reducer are realized by lever and spring. When the output axle of the reducer moves up and down, one end of the lever is tightly pressed on the end surface of the output axle by the tension of the spring, so the mandrel of the positioner produces an axial displacement to change the resistance value of the potentiometer. The displacement stroke of the output axle has a linear relationship with the resistance value of the positioner. The distance of lever fulcrum is used to change the change of travel, and the mechanical limit block is set according to different travel.
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