A+Z series linear-turn electric actuator
The linear-turn actuator outputs push-pull force and linear displacement. Mainly used for single and double seat regulating valve, sleeve valve, gate valve, etc.
Brief introduction
The linear-turn device works with various types of multi-tum actuators to form linear-turn electrical actuator for various applications, such as ST6+VE50S, T14+VE200S. etc. For details, please refer to next pages. In selecting parameters for electrical actuators, please follow the formula below:
Actuator torque = operating thrust x moment/thrust
Full-stroke cycles = Max. stroke x cycle/stroke
Operating time = 60x cycles/actuator speed (rpm)
Diversity function
1. Over torque protection: The actuator has an over-torque protection measuring mechanism, which can accurately measure the acting force of the valve. When the acting torque exceeds the range, the over-torque switch will act, and the control circuit will stop the operation of the direction and output the signal. When the motor stops, the valve and the actuator will be protected. . 2. Motor overheat protection: There is a thermal relay inside the motor, and the motor will automatically cut off the power supply when the motor is abnormally overheated. 3. Electrical protection: The input and output channels are all optically isolated 4. Limit protection: The valve position is detected by a precision potentiometer, and four independently adjustable cams are installed on the mechanism to control the upper and lower limit positions of the actuator. 5. Off signal protection: The regulating actuator has a signal detection circuit. If the input or output is disconnected, the actuator can keep its original flavor and run to the fully closed or fully open emergency position. 6. Off power protection: The SE actuator is mechanically self-locking, and the actuator stops in place in the event of a power failure. 7. Hand：wheel operation: Drive handwheel provides emergency manual operation in the event of power failure or actuator failure. 8. Electric braking function: The modulating actuator has the function of electric braking to prevent the impact on the valve when the motor inertia is too large and improve the control accuracy 9. High torque low inertia motor: Single-phase or three-phase fully enclosed squirrel-cage induction motors with high starting torque, low rotational inertia and small starting current are used. 10. Position indicator: The position indicates that the output current is 4~20mADC. Output impedance ≦75Ω, constant current output.
Mainly Function and Features
Signal interruption protection function.
Over torque protection function.
Mechanical and electric double limit switch travel protection function.
"Remote auto / remote manual / local" three states can be switched, and with on-site electric operation, field hand wheel operation functions.
Positive and negative effects conversion function.
Prevent the motor run-down, with the dynamic electrical braking function.
High performance servo motor, can be frequently start without heat.
Variety of control modes: It can be received standard current signal , passive contact signal and bus Signals.
Supply voltage can be produced according to user requirements.
It has strong anti-interference ability.
Optional three-phase power phase loss protection function and automatic correction phase.
Standard technical parameters of SD electric actuator
Input signal：4-20mA impedance 250 Ω,0-10mA impedance 200 Ω
Dead area (sensitivity)：0.3-3% continuous adjustable
Input channel：one analog current input channel , one set of switch volume channel .
Output channel：4-20mA DC impedance > 50 Ω. The input channel is isolated from the output channel.
Output torque and travel.
Linear-turn: 2000N-25000N travel 10,16,25,40,100mm
Quarter-turn: 100-40000Nm travel 90°
Multi-turn： 40-400Nm travel 1-50 circle
Basic error：±1%;±1.5%
Return difference:≦ ±1%
Damping characteristics:No oscillation (zero period oscillation)
Level of proection: IP67
Operation environment:
1. temperature: -28--+70
2.humidity: ≦95%
3.shake: frequency 10-100Hz strenth, 0.5 times of acceleration of gravity
4.impact: <5g
5. barometric pressure：72.5-106KPa
The non-corrosive gas media in the surrounding air must not be used in inflammable and explosive places.
(The explosion-proof products can be found in my company's explosion-proof products'sample.)
Voltage and power supply 220V--±10%50Hz
Single phase:220V--±10%50Hz 380V--±10%50Hz
Three phase: 380V--±10%50Hz
*Special voltage, frequency needs to be customized in advance.
AS-25 BS-60
Quarter-turn electric actuator for torque between 250 and 600Nm
A+RS100-A+RS1000
Quarter-turn electric actuator for torques between 1000 and 10000Nm
A+RS1200-A+RS2500
Quarter-turn electric actuator for torques between 12000 and 250000Nm
Low Temperature Customization
SD series low-temperature valve electric device is based on the common type, the material of the main box and other stressed parts, the material of the electronic control device and the wire, the material of the rubber seal, the grease, the performance and power of the motor, etc. Corresponding measures have been taken to achieve the low-temperature performance that the product should have. According to the test methods and procedures of the imported technical documents, the low-temperature test of our company's typical machine base prototype has been carried out by an authoritative research institution, and all have achieved ideal results. It meets the requirements of the test and has the actual conditions of use. The flange form, size, and overall dimensions of the SMC series low-temperature valve electric device are the same as those of its ordinary products (or general explosion-proof products). Please refer to the relevant samples for selection.
Applicable temperature range
Low temperature type I temperature range -25°C~-40°C Low temperature type II temperature range -40°~-500°C Note: The ambient temperature of the low temperature type II electrical equipment should not exceed 40°C Inspection process The method is to place the electrical equipment (with a test bench) in a low-temperature freezer and keep it in an ultra-low temperature environment of -55°C for a long time, and then carry out relevant performance tests to ensure normal operation and good performance.
Duty Classification Customization
Continuous working system-continuous running duty type
S1. Short time working system-short-time duty-duty type
S2. Intermittent periodic-intermittent periodic duty-duty type
S3. Including the intermittent periodic starting system-intermittent periodic duty with starting-duty type
S4. The intermittent periodic working system includes the electric brake-intermittent periodic duty with electric braking-duty type
S5. Continuous periodic working system-continuous-operation periodic duty-duty type
S6. Including the electric brake of the continuous periodic work system-continuous-operation periodic duty with electric braking-duty typeS7.
A continuous periodic operating system that includes a corresponding change in load-speed-continuous-operation periodic duty with related load-speed changes-duty type S8. Load and speed of non-periodic changes in the working system-duty with non-periodic load and speed variations-duty type S9. Discrete constant load system-S10 working system.
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