The Neles B1 series pneumatic cylinder quarter-turn actuator is a double-acting piston actuator with an output torque of 28–100000 Nm and an air supply pressure of 2.8–10 bar. Compliant with ISO 5211 and VDI/VDE 3845 mounting standards, it offers IP66/IP67 ingress protection, Ex II 2G/D explosion-proof rating, and a wide operating temperature range of -55 to +120 °C. Designed for modulating and on-off control of rotary valves, it is suitable for industrial automation applications involving high cycling, fast response, and low temperatures.
Neles pneumatic cylinder actuator, B1 Series
Neles
B1 Series Pneumatic Cylinder Quarter-Turn Actuator | Neles
Product code: B1
Double-acting piston quarter-turn actuator for modulating and on-off control of rotary valves, delivering fast and responsive operation for high-cycle and low-temperature applications.
- Category
- Actuators
- Air supply pressure range
- 2.8 - 10 bar
- Output torque range
- 28 - 100000 Nm
Specifications
- Actuator type
- Pneumatic cylinder actuator
- Operating principle
- Double-acting
- Air supply pressure range
- 2.8 - 10 bar
- Output torque range
- 28 - 100000 Nm
- Operating temperature range
- -55 to +120 °C
- Ingress protection rating
- IP66, IP67 (IEC 60529)
- Explosion-proof rating
- Ex II 2G/D c IIC TX
- Mounting standards
- ISO 5211, VDI/VDE 3845
- Type certification requirement
- EN 15714-3
- Coating corrosion protection class
- C3-M, C5-H (ISO 12944-2, EN 15714-3)
Application scenarios
Rotary valve modulating control and high-cycle operation
For modulating control of rotary valves, the actuator delivers fast, responsive operation and long cycle life, making it suitable for industrial process control requiring continuous or frequent modulation.
Rotary valve on-off control
For on-off control of rotary valves, valve opening and closing is achieved through double-acting pneumatic quarter-turn motion, suitable for automated valve control requiring fast, responsive action.
Rotary valve automation in low-temperature environments
For rotary valve automation drives operating at temperatures from -55 to +120 °C, with the product documentation explicitly supporting this operating temperature range and rotary valve actuation.
Selection points
Wide Output Torque Range
The B1 Series provides an output torque range of 28 to 100000 Nm, supporting rotary valve actuator selection for different torque requirements.
Wide Operating Temperature Range
The B1 Series operates from -55 to +120 °C, allowing actuator selection based on the actual ambient temperature.
Protection and Corrosion-Resistant Coating Options
The B1 Series provides IP66 and IP67 protection ratings and C3-M and C5-H coating corrosion protection ratings, supporting selection for applicable environmental and corrosion protection requirements.
Suitable for Modulating and On-Off Control
The B1 Series is suitable for modulating and on-off control applications and provides a long cycle life.
Standardized Mounting Interfaces
B1 Series mounting complies with ISO 5211 and VDI/VDE 3845, supporting integration with rotary valves and accessories using the corresponding standard interfaces.
Installation notes
Control the air supply pressure range
Before connecting the air supply, verify that the supply pressure is within the 2.8 to 10 bar range specified for the model.
Control the operating temperature range
The actual temperature of the installation and operating environment should be within the -55 to +120 °C range specified for the model.
Align and secure using standard mounting interfaces
When connecting the actuator to a rotary valve, use mounting interfaces conforming to ISO 5211 and VDI/VDE 3845, and align and secure it according to the interface requirements.
FAQ
What valve control tasks is the Neles B1 series pneumatic cylinder actuator suitable for?
The Neles B1 series is a piston-type quarter-turn pneumatic actuator suitable for both modulating and on-off control, capable of driving a wide range of rotary valves. Its applications include emergency shutdown, compressor anti-surge, high-cycle control, high-precision control, and arctic conditions.
What are the air supply pressure, torque, and operating temperature ranges of the B1C double-acting actuator?
The B1C double-acting model has an air supply pressure range of 2.8 to 10 bar, an output torque range of 28 to 100000 Nm, and an operating temperature range of -55 to +120 °C. Specific configurations must be confirmed according to the actual model and application conditions.
Can the Neles B1 series be used for emergency shutdown (ESD) applications?
Yes. The B1 series is suitable for a variety of application conditions, including demanding ESD services, and is available in double-acting and spring-return configurations. For emergency shutdown applications, selection should take into account the required valve fail-safe action, target torque, air supply conditions, and ambient temperature.
How are the mounting interfaces and protection performance of the B1 series actuator confirmed?
The B1 series features ISO 5211 mounting faces and VDI/VDE 3845 interfaces, allowing easy installation with compatible rotary valves and accessories. The protection rating is IP66 and IP67 per IEC 60529; for hazardous area applications, suitability should be confirmed based on the Ex II 2G/D c IIC TX rating and the actual installation environment.
How to select a B1 series actuator for high-cycle or high-precision control applications?
Selection should begin by confirming the valve type, required on-off or modulating torque, air supply pressure, operating principle, ambient temperature, and mounting interface. The B1 series offers long cycle life, fast responsive operation, and a wide torque range, making it suitable for high-cycle control and on-off control applications; for demanding environments, the required material, spring, override, lockout, and coating options should also be confirmed.