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BNE Series Explosion-Proof Electric Actuator for Rotary Valves - Reliable China Suppliers & 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 series electric actuator mechanism is "flame proof type" (Exd).
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 line cavity are designed and manufactured according to the flameproof standard.
Explosion-proof Rating
The explosion-proof grade of BNE explosion-proof electric actuator is: Exd II C T4 Gb
Ex Explosion-proof identification
d Explosion-proof type (flameproof)
II Device category (gas environments except coal mines)
C Explosive level (determines flame proof joint dimensions)
T4 Temperature group (max surface temp ≤ 135°C)
Gb Device protection level
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'" standards, 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, please confirm as below:
- Packing and documents: Product list, test report, and wiring diagram.
- Inspection report: Verify that the Nameplate and Electrical wiring diagram are consistent with the purchasing order.
- Limit Switch Setting: Before the end of setting the Limit switch, do not make the actuator be in full-open or full-closed position.
- Sealing: After completing of electrical wiring, seal the cable interface properly.
Product Overview
BNE series explosion-proof electric actuator is used to control 0-270° rotary valves, such as butterfly valves, ball valves, throttle valves, baffle valves, plug valves, etc. It is widely used in petroleum, chemical industry, water treatment, shipping, paper, power stations, heating supply, building automation, light industry, etc.
Using 380V/220V/110V AC power supply for driving, and a 4-20 mA current signal or 0-10 VDC voltage signal as the control signal, it can move the valve to the required position to realize automation control. Maximum output torque is 1500 N.m.
The name of the product structure and some parts
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 F, built-in overheat protection switch to prevent the motor from overheating.
Manual Operation
Safe and reliable handle design is very easy for manual operation. Make sure the power is "OFF" before manual operation. When free, store the handle in the socket beside the body.
Dome Indicator
The sight mirror indicates clearly, making observation more intuitive and convenient.
Dryer
Used to control temperature and avoid internal moisture condensation caused by temperature or weather changes to keep electric elements dry.
Seal
Good seals. Standard product protection grade is IP66, with optional IP67.
Limit Switch
Mechanical and electronic double position limit. Mechanical limit screw is adjustable; electronic limit switch is controlled by a cam mechanism for accurate adjusting.
Self-locking
High precision worm and gear mechanism effectively transfers and outputs large torque with a self-locking function to prevent reverse. Stable and reliable transmission, no extra grease needed.
Anti-off Bolt
When removing the cover, the bolts remain attached to the shell so they will not fall off.
Installation
Bottom connection complies with ISO5211/DIN3337. Can be installed in both vertical and horizontal positions.
Circuit
Control circuit conforms to single or three-phase power supply standards. Reasonable layout with compact terminals to satisfy a variety of additional 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 | Aluminum 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 | Aluminum 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 | Aluminum alloy | ||||||
| Optional function | Dehumidifying heater, clutch hand wheel | ||||||
BNE060/100/150 Overall 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 work: close/open limit switch; Manual work: mechanical limit | |||||||||
| Installation location | At any angle | |||||||||
| Working temperature | -20℃-60℃ | |||||||||
| Material of body | Aluminum alloy | |||||||||
| Optional function | Dehumidifying heater, clutch hand wheel | |||||||||
Installation and Adjusting
1. Installation Environment Requirements
- 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.
- If installed in a water-flooded or outdoor location, please explain in advance.
- Please reserve wiring and maintenance space, such as for manual operation.
- In order to avoid rain and direct sunlight, it is necessary to install a protection cover, or choose the IP67 protection level.
- Basic installation direction is to keep the window facing the top. For vertical pipeline actuator installation, keep the cable interface facing the ground.
2. Ambient Temperature & Medium Temperature
- The ambient temperature should be in the range of -30℃ to 60℃.
- When the ambient temperature is below zero, install a dehumidifier in the machine.
- When the working medium is at a high temperature, the bracket connected to the valve helps reduce heat conduction.
- When the working medium temperature is below 60℃, please choose the standard support.
- When the working medium temperature is above 60℃, please choose the high temperature bracket.
3. Valve Connection
- Manually turn the valve, confirm that there is no abnormal situation, turn to the fully closed position, and fix the support on the valve.
- Place the electric actuator on the support and screw it on gently with bolts and nuts.
- 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.
- Use the handle to turn the electric actuator; the movement should be 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. 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, hear the "click" sound 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 the mechanical limit nut and make sure the actuator moves to the full-closed position. Rotate the limiting nuts, stop rotating when it comes across the fan-shaped gear inside, screw out two circles, and then tighten the nuts. (Shown in Figure 13)
3) Adjustment of potentiometer: The potentiometer outputs a feedback signal in the actuator with three output pins (middle pin is the output, left and right sides are the power supply; the resistor should not have a resistance value of zero or jump). 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 incorrect, 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 positions, after the limit switch turns half a circle, it will come across the mechanical block. Avoid using excessive force to prevent damage to other parts.
2) Power operation: Before making power operation, confirm that:
- The indication on the position meter and the valve opening match each other.
- The circuits are properly wired, and the unit operates in the correct direction with external switches.
- Verify the wiring diagram, power supply, and input/output signals are correct. Do not change the internal wiring.
- Please check the rotating direction if the power supply is three-phase.
- Make sure the actuator is in the on/off position, turn on the power, and input the open signal. If the actuator runs in the open direction, the wiring is correct. If not, swap two phase lines of the three-phase wiring.
6. Maintenance & Lubrication
- The product uses special molybdenum base grease, so there is no need to add oil.
- Regular rotation: When the valve does not work for a long time, the machine can be driven regularly to check for abnormalities.
- 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 type and rating of the BNE series electric actuator?
The BNE series utilizes a "flame proof type" (Exd) design. Its specific explosion-proof rating is Exd II C T4 Gb, meaning it is certified for explosive gas environments other than coal mines, with a maximum allowable surface temperature of 135°C.
Which standards does the explosion-proof structure comply with?
The structure conforms to the provisions of GB3836.1-2010 (General requirements for equipment in explosive environments) and GB3836.2-2010 (Equipment protected by flameproof housing "d") standards.
What should I check before installing the BNE actuator?
Before installation, check the packing list, test report, and wiring diagram. Ensure that the nameplate and electrical wiring diagrams match your purchasing order, and handle the cable interface with a seal method after wiring.
What is the protection class of the housing, and can it be upgraded?
The standard product protection class is IP66, which offers strong corrosion resistance. An optional IP67 protection class is available for enhanced sealing, especially for outdoor installations.
Does the BNE series electric actuator require regular lubrication?
No. The actuator is lubricated with a special molybdenum base grease during manufacturing, meaning there is no need to add additional oil during regular maintenance.
What precautions should be taken for manual operation?
Always ensure the power is turned "OFF" before performing manual operations. Insert the handle into the hexagonal hole under the rubber cap. Avoid applying excessive force when reaching the mechanical limit block to prevent structural damage.