BQ Series Electric Actuator - 60Nm to 6000N.m, China Suppliers, Factory, CE Certified, Explosion Proof Options
Construction Model Instruction
Model Instructions
Performance
Note: Please contact us for other voltage requests, e.g. 110VAC/440VAC etc.
Standard Specification
Standard Configuration
01
Join us to attend the MCE 2026 exhibition in Milan, Italy.
2026-03-19
02
Electric explosion-proof clamp butterfly valve
2026-03-09
03
Electric plastic butterfly valves
2026-03-04
Dimension
Note: The mounting dimensions could be customized by the user.
Setting
1. Manual operation
Pull the clutch handle towards the handwheel until it is upright.
If the handle is not upright, pull it again and turn the handwheel slowly.
Clockwise is the closed direction and counterclockwise is the open direction.
Do not operate manually after the actuator is energized, and the handle will be restored to its original position automatically by the internal clutch mechanism.
2. Limit switch setting
Pull the handle for manual operation and rotate the handwheel to make the actuator run to the original position.
Loosen the cam retaining bolt with a wrench, and rotate the cam to achieve the required adjustment angle (according to actual requirements of the valve) and tighten the bolt again.
3. Torque switch
Torque switch has been set before delivery, the user does not need to set the switch again.
Note: We cannot guarantee the performance if the switch is reset by the user.
4. Setting of stop bolt
When the error is more than 5°, need to readjust the set retaining bolt.
When setting, remove the stop bolt by 2 turns and tighten the nut.
5. Indicator setting
Make the actuator run to the closed position and rotate the actuator by hand.
Align the number of the lens in the direction.
Tighten the bolts (be careful not to touch the side of the indicator disc).
Note: Factory set, usually does not need to set again.
6. Attention for connection
The cable interface is G3/4″ screw hole, sealed with plug before delivery.
If the user does not use either cable interface, please keep the plug as it is.
Please seal the interface after wiring to prevent water inflow.
If the user uses an explosion-proof actuator, be sure to use the same level connection components. If users use unqualified components, we cannot guarantee the performance of the explosion-proof actuator.
7. Electrical wiring
A wiring diagram (inside the electrical hatch cover) is attached to the actuator.
Wiring according to the wiring diagram provided, such as power supply, control power supply, internal wiring and grounding, etc. If necessary, the external electrical source is from the dryer to keep the actuator dry.
Make sure the terminals are firmly connected.
Make sure that an external controller operates only one actuator (cannot operate more than 2 sets of actuators at one time).
Make sure the actuator is clean and free of sundries after wiring.
8. Check the rotation direction
For three-phase actuator, the rotation direction of the actuator should be checked before the electric operation.
If the direction of operation is incorrect, the limit switch will not work, resulting in plug damage or motor overheating.
Manually put the actuator in the position of 50% on (or off), power the actuator, and confirm the direction of rotation.
If the signal is on, the actuator will rotate and run in the open direction, then the direction is correct. But if you go the other way, you need to change the wiring and switch any 2 of the 3 power cords.
Check the rotation direction again and confirm it.
Trial operation
Make sure to check the rotation direction of the actuator before operation.
Check the function of limit switch and torque switch, direction of indicator and space heater.
Make sure the action of the handle is normal (clutch handle).
Check the indicator light on the control panel.
After the trial operation, please tighten the 4 bolts of the electrical hatch cover.
Maintenance
The actuator has been filled with lubricants, it generally doesn't need to add lubricants during normal operation.
It's better to keep the power supply for the actuator and have a run test every week regularly.
For better performance of the actuator, it is highly suggested to do the regular inspection and maintenance once a year, together with checking the action status, surface corrosion, etc.
Wiring Diagram
BQ006/010 110V/220VAC 50/60HZ 1PH ON/OFF TYPE
BQ010 380V/440VAC 50/60HZ 3PH ON/OFF TYPE
BO020-BO600 110V/220VAC 50/60HZ 1PH ON/OFF TYPE
BO020-BO600 380V/440VAC 50/60HZ 3PH ON/OFF TYPE
BO006/010 110V/220VAC 50/60HZ 1PH MODULATING TYPE
BO010 380V/440VAC 50/60HZ 3PH MODULATING TYPE
BQ020-BQ600 110V/220VAC 50/60HZ 1PH MODULATING TYPE
BQ020-BQ600 380V/440VAC 50/60HZ 3PH MODULATING TYPE
Note:
1. The above wiring diagram is for reference only. Please refer to the standard wiring diagram inside of the actuator cover.
2. For modulating type actuator, pls refer to the instructions of the actuator control module.
1. The above wiring diagram is for reference only. Please refer to the standard wiring diagram inside of the actuator cover.
2. For modulating type actuator, pls refer to the instructions of the actuator control module.
Frequently Asked Questions (FAQ)
Q1: How do I operate the electric actuator manually?
To operate manually, pull the clutch handle towards the handwheel until it is upright. If it does not stand upright immediately, pull again while turning the handwheel slowly. Do not operate manually once the actuator is energized; the handle will automatically restore to its original position via the internal clutch mechanism.
Q2: How is the limit switch set on the actuator?
Pull the manual operation handle and rotate the handwheel to bring the actuator to its original position. Loosen the cam retaining bolt using a wrench, rotate the cam to your required adjustment angle, and then retighten the bolt securely.
Q3: Can the torque switch settings be adjusted by the user?
No, the torque switch is factory-preset before delivery. Users do not need to adjust it. Changing or resetting the torque switch settings may void the performance guarantee of the actuator.
Q4: What precautions should be taken for electrical wiring and connections?
Ensure wiring strictly follows the diagram located inside the electrical hatch cover. The cable interface uses a G3/4″ screw hole, which must be sealed after wiring to prevent water ingress. Additionally, make sure an external controller operates only one actuator at a time.
Q5: How do I check the rotation direction for a three-phase actuator?
Manually position the actuator at 50% open/closed, then power it up to verify the rotation. If it rotates in the wrong direction, the limit switch will fail, causing motor overheating or plug damage. Correct this by swapping any two of the three power lines.
Q6: What are the regular maintenance recommendations for this actuator?
The actuator is pre-filled with lubricants and typically does not require extra lubrication during normal use. It is recommended to perform a run test weekly and conduct a comprehensive inspection once a year to check the action status and look for surface corrosion.


