Product Description
Neles Neles910 Series Valve Positioner: Precision Control for Industrial Valves
1. Introduction
In the complex landscape of industrial processes, the accurate control of valves is crucial for ensuring efficient operations, maintaining product quality, and upholding safety standards. The Neles Neles910 series valve positioner emerges as a leading solution, designed to meet the stringent demands of various industries. This comprehensive product introduction will delve into the features, technical specifications, applications, and advantages of the Neles Neles910 series, highlighting why it stands out in the market.
2. Product Overview
2.1 Function
The Neles Neles910 series valve positioner is a sophisticated device that serves as the interface between the control system and the valve actuator. Its primary function is to precisely position the valve based on the control signal received from the process control system. By accurately adjusting the valve's opening or closing, it enables the precise regulation of fluid flow, pressure, temperature, and other critical process variables.
2.2 Design and Build
Built with durability and reliability in mind, the Neles910 series features a rugged housing that provides excellent protection against harsh environmental conditions. The compact design allows for easy installation in various valve configurations, whether it's a linear or rotary valve. The use of high-quality materials ensures long - term performance, even in challenging industrial settings.
Detailed Photos
Product Parameters
| Parameter |
Specification |
| Model |
ND9100H, ND9103HNT-KCE07, ND9106HX8T, etc. |
| Input Signal |
4-20 mA DC (two-wire system) |
| Power Supply |
3.8 mA minimum control current; 485Ω load resistance at 20 mA (9.7 VDC) |
| Communication Protocol |
HART 6/7, PROFIBUS-PA, FOUNDATION Fieldbus |
| Valve Type Compatibility |
Linear (5-120 mm stroke) / Rotary (30-160°) actuators; double/single-acting |
| Environmental Rating |
IP66/NEMA 4X (standard); IP67 optional; -40°C to +85°C operating temperature |
| Certifications |
ATEX, IECEx, SIL 2, NEPSI, KOSHA, INMETRO, cCSAus |
| Air Supply Pressure |
140-800 kPa (1.4-8 bar) |
| Air Consumption |
Steady-state: <0.1 Nm³/h; Output capacity: 80 Nm³/h at 400 kPa |
| Control Performance |
Linearity: <0.5%; Dead zone: ≤0.2%; Hysteresis: <0.5%; Repeatability: <0.2% |
| Diagnostics |
Self-diagnostics, online/offline testing, communication diagnostics, data storage |
| Configuration |
Local (4 capacitive touch buttons) or remote via HART/fieldbus |
| Fault Action Modes |
Fail-open (OPE) / Fail-close (CLO) |
| Mounting Standards |
VDI/VDE 3845, IEC 60534-6; compatible with third-party actuators |
| Material |
Resin-coated aluminum housing, polycarbonate cover |
| Weight |
1.9 kg (standard configuration) |
| Warranty |
1 year |
3. Technical Features
3.1 Control Accuracy
- Advanced Control Algorithms: The Neles910 series employs state - of - the - art digital control algorithms to achieve exceptional control accuracy. These algorithms continuously monitor and adjust the valve position, minimizing deviations from the setpoint. With a positioning accuracy of up to ±0.5%, it ensures that the valve operates precisely as required, leading to improved process stability and product quality.
- High - Resolution Feedback: Equipped with high - resolution position sensors, the positioner provides real - time feedback on the valve's position. This detailed feedback enables the control system to make fine - tuned adjustments, resulting in smooth and accurate valve movement.
3.2 Communication Protocols
- Multiple Protocol Support: The Neles910 series is highly versatile in terms of communication. It supports a wide range of industry - standard communication protocols, including HART (Highway Addressable Remote Transducer), PROFIBUS - PA (Process Automation), and FOUNDATION Fieldbus. This multi - protocol compatibility allows for seamless integration with different process control systems, such as Distributed Control Systems (DCS) and Programmable Logic Controllers (PLC).
- Remote Configuration and Monitoring: Thanks to its communication capabilities, the positioner can be remotely configured and monitored. Operators can access and adjust parameters, view diagnostic information, and receive alerts without the need for physical access to the device. This remote functionality significantly reduces maintenance time and costs, especially in large - scale industrial plants.
3.3 Adaptive Tuning
- Auto - Tuning Feature: One of the key features of the Neles910 series is its auto - tuning functionality. This feature allows the positioner to automatically adapt to the characteristics of the valve and actuator combination. During the startup process, the positioner performs a self - calibration, analyzing factors such as valve friction, spring stiffness, and actuator response. Based on this analysis, it optimizes its control parameters to achieve the best possible performance.
- Dynamic Adaptation: In addition to initial auto - tuning, the positioner continuously monitors the process and adapts its control settings in real - time. If there are any changes in the valve's behavior due to wear, changes in process conditions, or other factors, the Neles910 series can adjust its tuning to maintain optimal performance.
3.4 Environmental Resistance
- High - Grade Enclosures: The positioner is available in enclosures with high - level protection ratings, such as IP66/IP67. These enclosures provide excellent protection against dust, water ingress, and even temporary submersion. This makes the Neles910 series suitable for use in outdoor applications, as well as in areas with high humidity or frequent washdowns.
- Wide Temperature Range: It can operate over a wide temperature range, typically from - 40°C to +85°C. This wide temperature tolerance allows it to be used in various industrial environments, from cold storage facilities to high - temperature process plants. Additionally, there are versions available for arctic conditions, with an extended temperature range down to - 53°C.
4. Product Variants and Customization
4.1 Model Variations
The Neles Neles910 series offers a range of model variations to suit different application requirements. For example, the ND9102HN, ND9103HX, and ND9106HN are some of the popular models. Each model may have specific features or capabilities tailored to different valve types, control signal requirements, or communication needs.
- Differences in Performance: Some models may offer higher control accuracy, while others may be optimized for faster response times. The choice of model depends on the specific demands of the industrial process, such as the type of fluid being controlled, the required flow rate accuracy, and the dynamics of the process.
- Compatibility with Actuators: Different models are designed to be compatible with various types of valve actuators, including pneumatic, hydraulic, and electric actuators. This ensures that customers can find the right positioner for their existing valve - actuator setups.
4.2 Customization Options
Neles understands that every industrial application is unique, and thus offers customization options for the Neles910 series.
- Tailored to Application Requirements: Customers can request custom - made positioners that are specifically designed to meet their particular process requirements. This may include custom - sized enclosures, modified control algorithms to account for unique process dynamics, or specialized communication interfaces.
- Additional Accessories: There is also a range of additional accessories available, such as limit switches, position transmitters, and heaters for use in cold environments. These accessories can be added to the positioner to enhance its functionality and adapt it to specific operating conditions.
5. Applications
5.1 Oil and Gas Industry
- Pipeline Flow Control: In oil and gas pipelines, the Neles Neles910 series is used to precisely control the flow of hydrocarbons. By accurately positioning the valves, it ensures a steady and efficient flow of oil or gas, minimizing pressure drops and reducing the risk of leaks. For example, in long - distance pipelines, the positioner helps maintain the required flow rate, taking into account factors such as pipeline diameter, elevation changes, and fluid viscosity.
- Refinery Processes: In refineries, the Neles910 series plays a crucial role in various processes, such as distillation, cracking, and blending. It controls valves in units like the crude distillation unit, where precise control of feed and product flows is essential for achieving the desired separation and product quality. In catalytic cracking units, the positioner ensures the accurate operation of valves that regulate the flow of catalysts and reactants.
5.2 Chemical and Petrochemical Industry
- Reactor Feed Control: In chemical reactors, the Neles Neles910 series is used to control the feed valves, ensuring that the correct amounts of reactants are introduced into the reactor. Precise control of the feed rate is critical for maintaining the desired reaction conditions, such as temperature, pressure, and reaction rate. This helps to optimize product yield, reduce waste, and ensure the safety of the process.
- Process Safety Systems: In petrochemical plants, where the handling of hazardous chemicals is common, the Neles910 series is used in safety - critical applications. For example, in emergency shutdown systems, the positioner quickly and accurately closes the valves to prevent the release of dangerous substances in the event of a malfunction or emergency.
5.3 Power Generation
- Steam Turbine Control: In power plants, the Neles Neles910 series is used to control the steam valves in steam turbines. By precisely regulating the steam flow, it helps to optimize the turbine's performance, ensuring efficient power generation. The positioner can respond quickly to changes in load demands, adjusting the valve position to maintain the required steam pressure and flow rate.
- Boiler Water Control: It also plays a role in controlling the water feed valves in boilers. Accurate control of the water level in the boiler is essential for safe and efficient operation. The Neles910 series ensures that the correct amount of water is supplied to the boiler, taking into account factors such as steam generation rate, water temperature, and boiler pressure.
5.4 Water and Wastewater Treatment
- Pump Station Flow Regulation: In water and wastewater treatment plants, the Neles Neles910 series is used to regulate the flow of water in pump stations. By controlling the valves, it ensures that the appropriate amount of water is pumped to different treatment processes, such as filtration, sedimentation, and disinfection. This helps to maintain the efficiency of the treatment process and ensure the quality of the treated water.
- Sludge Handling: In wastewater treatment, the positioner is also used to control valves in sludge handling systems. It helps to regulate the flow of sludge during processes like thickening, dewatering, and disposal, ensuring proper handling and treatment of the sludge.
6. Product Advantages
6.1 Reliability
- Long - Term Performance: The Neles Neles910 series is known for its outstanding reliability. With a mean time between failures (MTBF) of over 100,000 hours, it can operate continuously for extended periods without breakdowns. This long - term performance reduces unplanned downtime, which is crucial for maintaining the productivity of industrial processes.
- Robust Design: The rugged construction and high - quality components used in the Neles910 series contribute to its reliability. The positioner can withstand mechanical vibrations, electrical interference, and harsh environmental conditions, making it suitable for use in demanding industrial environments.
6.2 Ease of Installation and Maintenance
- Flexible Installation Options: The positioner offers flexible installation options, allowing it to be easily mounted on different types of valves. It supports both direct and indirect mounting methods, and can be installed on linear as well as rotary valves. The modular design of the Neles910 series also simplifies the installation process, as components can be easily assembled and disassembled.
- Remote Configuration and Monitoring: As mentioned earlier, the ability to remotely configure and monitor the positioner greatly simplifies maintenance. Operators can perform tasks such as parameter adjustment, calibration, and diagnostic checks from a central control room. This reduces the need for on - site maintenance visits, saving time and resources. In addition, the positioner's diagnostic capabilities can detect potential problems early, allowing for proactive maintenance and minimizing the risk of unexpected failures.
- Modular Design for Easy Repairs: The modular design of the Neles910 series also makes repairs easier. In the event of a component failure, individual modules can be replaced without the need to replace the entire positioner. This reduces repair times and costs, as only the faulty module needs to be replaced.
6.3 Cost - Effectiveness
- Energy Efficiency: The Neles910 series is designed with energy efficiency in mind. Its low - power consumption reduces the overall energy costs of the industrial process. For example, in applications where multiple positioners are used, the cumulative energy savings can be significant over time.
- Reduced Maintenance Costs: The long - term reliability and ease of maintenance of the positioner result in lower maintenance costs. With fewer breakdowns and easier repair procedures, the need for expensive emergency repairs and replacement of entire units is minimized. Additionally, the ability to perform remote maintenance reduces the labor costs associated with on - site visits.
- Improved Process Efficiency: By ensuring precise valve control, the Neles910 series contributes to improved process efficiency. This can lead to reduced waste, improved product quality, and increased production rates, all of which ultimately result in cost savings for the industrial plant.
6.4 Safety Compliance
- Function Safety Standards: The Neles Neles910 series complies with international function safety standards, such as IEC 61508 SIL2/SIL3. This makes it suitable for use in safety - critical applications, where the reliable operation of the valve positioner is essential for preventing accidents and protecting personnel and the environment.
- Explosion - Proof and Intrinsically Safe Versions: For use in hazardous areas, the positioner is available in explosion - proof (Ex d) and intrinsically safe (Ex ia) versions. These versions are designed to prevent the ignition of explosive gases or dust, ensuring safe operation in environments where there is a risk of explosion.
Company Profile
KeRui (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales,technical services, and supporting equipment supply of specialized companies. The main products are flow meters, level meters,temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.
Packaging & Shipping
The packaging and transportation of instrumentation in global trade hinges on a synergy of advanced materials, rigorous testing, regulatory compliance, and smart logistics. By adopting hybrid structural designs, leveraging real-time monitoring technologies, and prioritizing sustainability, exporters can ensure the safe, efficient, and cost-effective delivery of precision instruments. Continuous innovation in materials science and IoT integration will further redefine industry standards, enhancing resilience in an increasingly interconnected market.
FAQ
Q: How long will you give me the reply?
A: We will reply to you as soon as we see the information.
Q: What is the delivery time?
A: Our delivery time is within 3-7 days after we get your payment;
for large qty mass orders, the time should be confirmed again for you.
Q: How about your package?
A: Do not worry about the package, we have rich experience in packing, and all our package is wooden case package.
Q: How about the payment terms?
A: You can choose T/T.
Q: Do you provide samples?
A: Yes, we have materials in stock to help you to get the samples as soon as we can.
Q: What is the MOQ?
A:1PC.
Q: Can I get a lower price if I order large quantities?
A: Yes, cheaper prices with more bigger size orders.
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