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China BNE Series Electric Actuator - Explosion-Proof Valve Control Suppliers and Factory
Explosion-proof realization
GB3836 series standards specify different types of explosion-proof types and related design, manufacturing, inspection and testing standards.
The explosion-proof type of BNE serie selectric actuator mechanism is "flame proof type" (Exd).
(1) Flame proof type (Exd)
The actuator allows an explosion to occur inside the equipment, and the flameproof surface of the shell is designed to prevent the internal spark or the explosion carrier from contacting the outside world. The suitable flameproof surface clearance and sufficient length of the flameproof surface ensure product safety. At the same time, the strong shell can withstand the high pressure generated by the internal explosion without being damaged. BNE explosion-proof series actuator in the motor cavity, electrical component cavity and designed and manufactured according to the flameproof standard of the line cavity.
(2) Explosion-proof rating
The explosion-proof grade of BNE explosion-proof electric actuator is: ExdllCT4Gb
- Ex: Explosion-proof identification
- d: Explosion-proof type, expressed as "flameproof type"
- II: Device category, indicating electrical equipment for explosive gas environments other than coal mines
- C: Explosive level, which determines the dimensions (length and clearance) of each flame proof joint of the actuator
- T4: Temperature group, indicating that the maximum surface temperature of the actuator is allowed to be 135°C
- Gb: Indicates the protection level of the device
(3) Explosion-proof structure
The structure of BNE series explosion-proof products conforms to the relevant provisions of GB3836.1-2010《Explosive environment Part 1: General requirements for equipment》and GB3836.2-2010《Explosive environment Part 2: Equipment protected by flameproof housing "d"》standard, and adopts the flameproof structure of the whole machine.
BNE explosion-proof electric actuator instructions
Please read the instructions before using. Before installation and usage, pls confirm as below:
- a. Packing and documents: ① product list ② test report ③ wiring diagram
- b. Inspection report: Nameplate; Electrical wiring diagram is consistent with purchasing order
- c. Before the end of setting Limit switch: Do not make the actuator be in full-open or full-closed
- d. After Completing of electrical wiring: Deal with cable interface in seal method
The name of the product structure and some parts
Product overview
BNE series explosion-proof electric actuator is used to control 0-270° rotary valve, such as butterfly valve, ball valve throttle, baffle valves, plug valves, etc. Widely used in petroleum, chemical industry, water treatment, ship, paper, power stations, heating supply, building automation, light industry etc. 380v/220v/110v AC power supply for driving power supply, 4-20 mA current signal, or 0-10 VDC voltage signal to be control signal, can make the valve movement to the required position, realize automation control. Maximum output torque is 1500 N.m
Model designation
Construction features
Housing
Aluminum alloy housing, polyester powder coated, strong corrosion resistance, protection class is IP66.
Motor
Squirrel-cage motor, small size, large torque low inertia insulation class is F, built-in overheat protection switch, can prevent the motor from overheating.
Manual operation
Safe and reliable hand design is very easy for manual operation. But make sure the power is "OFF" before manual operation. When the handle is free, put it in the socket beside the body for keeping.
Dome indicator
The sight mirror indicates clearly, and the observation is more intuitive and convenient.
Dryer
Dryer is used to control the temperature and avoid actuator internal moisture condensation caused by temperature or weather changes. To keep the electric elements dry.
Seal
Good seals. Standard product protection grade is IP66, and optional IP67.
Limit switch
Mechanical and electronic double position limit. Mechanical limit screw is adjustable, safe and reliable; Electronic limit switch controlled by cam mechanism, easy adjusting the cam can set position accurately and conveniently, and is not affected by excess hand operation.
Self-locking
The high precision worm and gear mechanism has high effectively transfer and output large torque. And its self-locking function, prevent reverse. Transmission part is stable and reliable, no need more grease.
Anti-off bolt
When remove the cover, the bolt attached to the shell, will not fall off.
Installation
The bottom connection is according to ISO5211/DIN3337. Can be installed in both vertical and horizontal installation.
Circuit
Control circuit conforms to single or three-phase power supply standard, circuit layout is reasonable, compact terminals can effectively satisfy a variety of additional functional requirements.
Circuit diagram
Note: The circuit diagram of the control type (with field control) is referred to the module manual.
BNE005 Overall dimensions and performance parameters
| Model | BNE005 | ||||
| Power supply | DC24V | AC24V | AC110V | AC220V | AC380V |
| Motor power | 20W | 15W | |||
| Rated current | 1.8A | 2A | 0.5A | 0.3A | 0.1A |
| Standard time/torque | 20S/50Nm | 30S/50Nm | |||
| Optional time/torque | 25S/80Nm | 30S/50Nm 15S/30Nm 30S/30Nm 30S/80Nm | |||
| Action type | S R P DC DR DP PL T | ||||
| Rotary Angle | 0-90° for option | ||||
| Withstand voltage | DC24V/AC24V 500VDC 60S AC110V/AC220V/AC380V 1500VAC 60S | ||||
| Insulation resistance | DC24V/AC24V 100MΩ/250VDC AC110V/AC220V/AC380V 100MΩ/500VAC | ||||
| Protection class | IP66 | ||||
| Electrical interface | Explosion-proof joint | ||||
| Protective device | (automatic recover type) thermal protector | ||||
| Limit switch | Electric work: close/open limit switch; Manual work: mechanical limit | ||||
| Installation Location | At any angle | ||||
| Working temperature | -20℃-60℃ | ||||
| Material of body | Aluminium alloy | ||||
| Optional function | Dehumidifying heater, clutch hand wheel | ||||
| Alternative model | BNE008 | ||||
BNE010 Overall dimensions and performance parameters
| Model | BNE010 | ||||
| Power supply | DC24V | AC24V | AC110V | AC220V | AC380V |
| Motor power | 25W | 25W | |||
| Rated current | 2A | 2.2A | 0.6A | 0.3A | 0.2A |
| Standard time/torque | 20S/100Nm | 30S/100Nm | |||
| Optional time/torque | 15S/100Nm 30S/150Nm | ||||
| Action type | S R P DC DR DP PL T | ||||
| Rotary Angle | 0-90° for option | ||||
| Withstand voltage | DC24V/AC24V 500VDC 60S AC110V/AC220V/AC380V 1500VAC 60S | ||||
| Insulation resistance | DC24V/AC24V 100MΩ/250VDC AC110V/AC220V/AC380V 100MΩ/500VAC | ||||
| Protection class | IP66 | ||||
| Electrical interface | Explosion-proof joint | ||||
| Protective device | (automatic recover type) thermal protector | ||||
| Limit switch | Electric work: close/open limit switch; Manual work: mechanical limit | ||||
| Installation location | At any angle | ||||
| Working temperature | -20℃-60℃ | ||||
| Material of body | Aluminium alloy | ||||
| Optional function | Dehumidifying heater, clutch hand wheel | ||||
| Alternative model | BNE015 | ||||
BNE020/040 Overall dimensions and performance parameters
| Model | BNE020 | BNE040 | |||||
| Power supply | DC24V | AC110V | AC220V | AC380V | AC110V | AC220V | AC380V |
| Motor power | 35W | 40W | 40W | 40W | 60W | 60W | 60W |
| Rated current | 4.5A | 0.8A | 0.4A | 0.2A | 1A | 0.5A | 0.3A |
| Standard time/torque | 20S/200Nm | 40S/200Nm | 40s/400Nm | ||||
| Optional time/torque | 20S/200Nm | 20S/400Nm | |||||
| Action type | S R P DC DR DP PL T | ||||||
| Rotary Angle | 0-90° for option | ||||||
| Withstand voltage | DC24V 500VDC 60S AC110V/AC220V/AC380V 1500VAC 60S | ||||||
| Insulation resistance | DC24V 100MΩ/250VDC AC110V/AC220V/AC380V 100MΩ/50VAC | ||||||
| Protection class | IP66 | ||||||
| Electrical Interface | Explosion-proof joint | ||||||
| Protective device | (automatic recover type) thermal protector | ||||||
| Limit switch | Electric work: close/open limit switch; Manual work: mechanical limit | ||||||
| Installation location | At any angle | ||||||
| Working temperature | -20℃-60℃ | ||||||
| Material of body | Aluminium alloy | ||||||
| Optional function | Dehumidifying heater, clutch hand wheel | ||||||
BNE060/100/1500 verall dimensions and performance parameters
| Model | BNE060 | BNE100 | BNE150 | |||||||
| Power supply | DC24V | AC110V | AC220V | AC380V | AC110V | AC220V | AC380V | AC110V | AC220V | AC380V |
| Motor power | 70W | 90W | 90W | 90W | 120W | 120W | 120W | 140W | 140W | 140W |
| Rated current | 7A | 2.2A | 1.1A | 0.3A | 2.4A | 1.2A | 0.4A | 2.6A | 1.3A | 0.4A |
| Standard time/torque | 20S/400Nm 30S/600Nm | 40S/600Nm | 40S/1000Nm | 55S/1500Nm | ||||||
| Action type | S R P DC DR DP PL T | |||||||||
| Rotary Angle | 0-90° for option | |||||||||
| Withstand voltage | DC24V 500VDC 60S AC110V/AC220V/ AC380V 1500VAC 60S | |||||||||
| Insulation resistance | DC24b 100MΩ/250VDC AC110V/AC220V/AC380V 100MΩ/500VAC | |||||||||
| Protection class | IP65 | |||||||||
| Electrical interface | Explosion-proof joint | |||||||||
| Protective device | (automatic recover type) thermal protector | |||||||||
| Limit switch | Electric worke: close/open limit switch; Manual work: mechanical limit | |||||||||
| Installation location | At any angle | |||||||||
| Working temperature | -20℃-60℃ | |||||||||
| Material of body | Aluminium alloy | |||||||||
| Optional function | Dehumidifying heater, clutch hand wheel | |||||||||
Installation and adjusting
1 Installation environment requirements
- 1) The types or categories of explosive media around the places of the devices must be in conformity to the explosion-proof regulation of this product.
- 2) Installed in a water flooded and outdoor please explain in advance.
- 3) Please reserve wiring, maintenance space such as for manual operation.
- 4) In order to avoid the rain, direct sunlight, need to install the protection cover, or chooses IP67 protection level.
- 5) Basic installation direction to keep the window to the top, the vertical pipeline actuators installation, cable interface to the ground.
2 Ambient temperature, medium temperature
- 1) The ambient temperature is in the range of -30℃-60℃.
- 2) When the ambient temperature is below zero, install a dehumidifier in the machine.
- 3) When the working medium is high temperature, the bracket connected with the valve plays a role in reducing heat conduction.
- 4) When the working medium temperature is below 60°C, please choose standard support.
- 5) When the working medium temperature is above 60℃, please choose high temperature bracket.
3 Valve connection
- 1) Manually turn the valve, confirm that there is no abnormal situation, and turn to the fully closed position, and fix the support on the valve.
- 2) Place the electric actuator on the support and screw it on gently with bolts and nuts.
- 3) Turn the electric actuator to the closed position, and fix the valve core shaft and the electric actuator output shaft with the coupling and screw.
- 4) Use the handle to turn the electric actuator, the movement is smooth, be careful not to cross the set limit switch limit.
Note: When installing, make sure that the switch of the actuator is consistent with the switch of the valve. The flange at the bottom of the actuator meets the ISO 5211 standard, and if the valve connected to it also meets this standard. It can be easily connected; If this standard is not met, an additional bracket connection is required.
4 Adjustment
1) Adjustment of Stroke limit
Turn the handwheel to move the actuator to the position where the valve is fully closed. Then, loosen the limit CAM tightening nut with a wrench, turn the limit CAM (yellow open, red close) to adjust it to just press the lower limit switch, and hear the 'click' sound for 2 times and then tighten the limit CAM, adjust the full close position, and set the full open position in the same way. (As shown in Figure 12)
2) Adjustment of mechanical limit
Loosen nut mechanical limit and then make sure the actuator move to the full-closed position. Rotate limiting nuts, then stop rotate when it comes across the fan-shaped gear inside and then screw out two circles and screw the nuts at last. (Shown in Figure 13)
3) Adjustment of potentiometer
Potentiometer is output as a feedback signal in the actuator, with three output pins, the middle pin is the output, and the left and right sides are the power supply (note: the resistor should not have a resistance value of zero and jump phenomenon). Use the handle to turn the valve to the fully open position. Use a multimeter to measure the operation of the limit switch. Adjust the pin resistance on the terminal to the range of 350-600. If it is not correct, it can be adjusted by turning the potentiometer transmission gear. (As shown in Figure 14)
5 Test Operation
1) Manual Operation
Cut power off before making manual operation. Insert the manual handle into the hexagonal hole underneath the rubber cap. Note: Opening to Full open and full-closed position, after the limit switch turns half circle, it will come across mechanical block. If rotate excessively, it would result in the damage of other parts, so it should be avoided excessive force.
2) Power operation
Before making power operation:
- Confirm that the indication on the position meter and the valve opening are matching each other.
- Confirm that the circuits are properly wired, also that the unit operates in correct direction with external switches.
- 1) Check the wiring diagram, power supply, input/output signal correctly.
- 2) Don't change the internal wiring.
- 3) Please check the rotating direction if the power supply is three-phase.
- 4) Make sure the actuator is in the on/off position, turn on the power and input the open signal.
- 5) If the actuator runs to the open direction, it means the wiring is correct.
- 6) If not, it must be changed 2 wiring lines of the 3 wiring lines.
6 Maintenance & lubrication
- 1) The product uses special molybdenum base grease, so there is no need to add oil.
- 2) Regular rotation: When the valve does not work for a long time, the machine can be driven regularly to check for abnormalities.
- 3) For control type (with field control) instructions, please refer to the actuator control module manual (technical document attachment).
Frequently Asked Questions (FAQ)
What is the explosion-proof rating of the BNE electric actuator?
The explosion-proof rating is ExdIICT4Gb. This means it uses a flameproof enclosure (d), is designed for explosive gas environments other than coal mines (II), meets explosive level C, allows a maximum surface temperature of 135°C (T4), and provides equipment protection level Gb.
Can the BNE series actuator be installed horizontally?
Yes. The bottom connection of the BNE series conforms to ISO5211/DIN3337 standards, allowing it to be securely installed in both vertical and horizontal orientations.
What is the standard protection class of the BNE actuator housing?
The standard protection class is IP66, which protects against dust and powerful water jets. An optional IP67 protection class is also available for enhanced environmental sealing.
How does the self-locking feature function on these actuators?
The BNE actuator features a high-precision worm and gear mechanism that provides effective torque transfer and output. Its built-in self-locking function prevents reverse transmission, making the operation stable and reliable without needing additional grease.
What precautions should be taken before power operation?
Before applying power, ensure the position meter matches the actual valve opening, verify the wiring against the circuit diagram, and check that the unit rotates in the correct direction. For three-phase power supplies, verify the rotating direction and adjust the wiring lines if necessary.
Is regular lubrication required for the BNE actuator?
No, the actuator is pre-lubricated with a special molybdenum base grease, so there is no need to add oil. However, regular test rotations are recommended if the valve is left inactive for a long time to check for abnormalities.