Product Description
Yamatake AVP102 Valve Positioner: Precision, Reliability, and Versatility for Industrial Applications
1. Introduction
In the complex landscape of industrial automation, the accurate control of valves is of utmost importance. Valves play a critical role in regulating the flow of fluids, gases, and other substances in various industrial processes. To ensure precise and efficient valve operation, the Yamatake AVP102 Valve Positioner has emerged as a leading solution. This advanced device combines cutting-edge technology with user-friendly features to provide unparalleled performance in a wide range of industrial applications.
The Yamatake AVP102 is a smart valve positioner designed to work in harmony with different types of valves and actuators. It serves as a crucial link between the control system and the valve, translating control signals into precise valve movements. By accurately positioning the valve, the AVP102 helps optimize process control, improve system efficiency, and enhance overall plant performance.
2. Product Overview
2.1 Design and Build
The Yamatake AVP102 features a robust and compact design, making it suitable for installation in diverse industrial environments. Its enclosure is constructed from high-quality materials, providing excellent protection against dust, moisture, and mechanical impacts. The rugged build ensures long-term reliability, even in harsh operating conditions, such as those found in oil and gas refineries, chemical plants, and power generation facilities.
The positioner's compact size allows for easy integration into existing valve systems without requiring significant modifications to the installation space. This makes it a convenient choice for both new installations and retrofitting projects. Additionally, the AVP102 is designed with user-friendly interfaces and connection points, simplifying the installation and maintenance processes.
2.2 Key Components
The AVP102 is equipped with a range of advanced components that contribute to its high performance. At the heart of the positioner is an intelligent electronic control module. This module processes the input control signals from the control system and calculates the appropriate valve position based on pre-programmed settings and feedback from the valve. The electronic control module is highly responsive and accurate, enabling precise valve positioning in real-time.
Another important component is the feedback mechanism. The AVP102 uses a reliable feedback device, such as a potentiometer or a position sensor, to continuously monitor the actual position of the valve stem. This feedback information is sent back to the control module, which compares it with the desired valve position. If there is a deviation, the control module adjusts the output signal to the actuator to correct the valve position, ensuring accurate and stable operation.
The positioner also includes a pneumatic section, which converts the electrical control signals into pneumatic signals to drive the valve actuator. The pneumatic components are designed to provide smooth and reliable operation, with precise control over the air pressure and flow rate. This allows for seamless control of both single-acting and double-acting actuators, accommodating a wide variety of valve types and applications.
Detailed Photos
3. Working Principle
3.1 Signal Reception and Processing
The Yamatake AVP102 receives a control signal, typically a 4-20 mA DC signal, from the process control system. This signal represents the desired position of the valve. The intelligent control module within the AVP102 immediately starts processing this input signal. It first checks the integrity and range of the signal to ensure its validity.
Once the signal is verified, the control module compares it with the pre-set values stored in its memory. These pre-set values include parameters such as the valve's zero and span settings, flow characteristics, and any special application requirements. Based on this comparison, the control module calculates the necessary output to achieve the desired valve position.
3.2 Valve Positioning Mechanism
After calculating the required output, the AVP102 sends a corresponding pneumatic signal to the valve actuator. In the case of a single-acting actuator, the pneumatic signal either increases or decreases the air pressure in the actuator's diaphragm chamber, causing the valve stem to move up or down. For a double-acting actuator, the AVP102 controls the air pressure in both chambers of the actuator, precisely regulating the movement of the valve stem.
As the valve stem moves, the feedback mechanism continuously monitors its position. The feedback signal is sent back to the control module, which uses it to adjust the output signal to the actuator in real-time. This closed-loop control system ensures that the valve reaches and maintains the desired position accurately, even in the presence of external disturbances such as changes in process pressure, temperature, or fluid viscosity.
3.3 Self-Diagnostic and Adaptive Control Features
One of the standout features of the AVP102 is its self-diagnostic capabilities. The positioner continuously monitors its own operation and the status of the valve and actuator. It checks for various fault conditions, such as sensor malfunctions, electrical failures, and abnormal valve movements. If a fault is detected, the AVP102 immediately generates an alarm signal, notifying the operator or the control system. This allows for prompt maintenance and reduces the risk of process disruptions.
In addition to self-diagnosis, the AVP102 also incorporates adaptive control features. It can automatically adjust its control parameters based on changes in the process conditions or the performance of the valve and actuator. For example, if the valve experiences increased friction over time, the AVP102 can adaptively increase the output force to ensure smooth and accurate operation. This adaptive control functionality helps optimize the performance of the valve system and extends its service life.
Product Parameters
| Parameter |
Specification |
| Model |
AVP102 |
| Series |
100 Series |
| Input Signal |
4-20 mA DC |
| Supply Air Pressure |
140-700 kPa |
| Operating Temperature |
-40°C to 60°C |
| Material |
Aluminum (Cast Aluminum Housing) |
| Flow Characteristics |
Linear, Equal Percentage, Quick Opening |
| Applicable Actuators |
Pneumatic single/double acting, linear/rotary motion actuators |
| Communication Protocol |
Basic model (No HART mentioned for AVP102; HART supported in AVP300 series) |
| Environmental Protection |
IP66 |
| Certifications |
CE, CCC |
| Weight |
~2.5 kg (approximated from AVP300 series data) |
| Dimensions |
Approx. 25 × 25 × 20 cm (estimated from AVP100-H model) |
| Feedback Signal |
Valve travel feedback (integrated, based on AVP100 series description) |
| Mounting |
Compatible with linear and rotary actuators |
4. Technical Specifications
4.1 Input Signal
The AVP102 is designed to accept a standard 4-20 mA DC input signal from the control system. However, it also offers flexibility in input range configuration. Users can customize the input range to suit specific split-range applications or other non-standard requirements. This adaptability makes the AVP102 suitable for use in a wide variety of control systems, whether they are based on traditional analog technology or modern digital control platforms.
4.2 Output Characteristics
The positioner provides highly configurable output characteristics to match the specific requirements of different valves and processes. It offers three standard flow characteristics: linear, equal percentage (EQ%), and quick opening. These characteristics determine how the valve's flow rate changes in relation to the input signal. Additionally, the AVP102 allows for the creation of custom user-defined characteristics, providing even greater flexibility in process control.
For example, in applications where a linear relationship between the input signal and the valve's flow rate is required, such as in some precision metering applications, the linear output characteristic can be selected. In contrast, in applications where a more gradual change in flow rate is desired at lower valve openings, such as in throttling applications to control the flow of a highly viscous fluid, the equal percentage characteristic may be more appropriate.
4.3 Feedback Rod and Stem Rotation
The AVP102 is designed to work with valves that have a feedback rod or a rotating stem. The feedback rod angle can typically range from ±4° to ±20°, depending on the specific installation requirements. This wide range of feedback rod angles allows for compatibility with different valve designs and installation geometries.
For valves with a rotating stem, the AVP102 can accommodate a maximum stem rotation angle of 90°. This makes it suitable for use with rotary valves, such as ball valves and butterfly valves, which are commonly used in industrial processes for on-off and throttling control. The precise control of the stem rotation ensures accurate valve positioning and reliable operation.
4.4 Environmental Specifications
The Yamatake AVP102 is built to withstand harsh environmental conditions. It has a high typically meeting or exceeding IP65 standards. This means that it is dust-tight and protected against water jets from any direction. The positioner can operate in a wide temperature range, usually from -40°C to +85°C, depending on the specific model and configuration. This makes it suitable for use in both extreme cold and hot industrial environments, such as arctic oil fields or tropical chemical plants.
It also has excellent resistance to vibration and shock, ensuring stable operation even in applications where the valve is subject to mechanical vibrations, such as in reciprocating compressors or vibrating conveyor systems. The AVP102's robust environmental performance makes it a reliable choice for industrial applications where equipment must operate continuously and reliably under challenging conditions.
5. Advantages and Unique Selling Points
5.1 Easy Setup and Commissioning
The AVP102 features an intuitive auto - setup function, which is a major advantage during installation and commissioning. This fully - automatic configuration program can quickly identify the type of actuator connected to the positioner and automatically adjust the zero and span of the valve. To initiate the auto - setup, users simply need to activate an external switch. This feature is particularly beneficial in hazardous areas, as it allows for quick and safe valve adjustments without the need for complex manual operations. The auto - setup process typically takes only a few minutes, significantly reducing the time and effort required for initial installation and start - up.
In addition to the auto - setup, the AVP102 also provides clear and easy - to - follow on - screen prompts during the setup process. The positioner's display shows step - by - step instructions for various settings, such as input range configuration, flow characteristic selection, and actuator type setup. This user - friendly interface makes it accessible even to technicians with limited experience in valve positioner installation and configuration.
5.2 High Reliability and Safety
Reliability is a key aspect of the AVP102's design. The positive seating function is one of the features that contribute to its high reliability. In the event that the input signal becomes lower than a previously set value, the positive seating function ensures that the valve is completely shut off. This not only enhances the full - shut - off capabilities of the valve but also provides an added layer of safety in critical applications. For example, in a chemical plant where the uncontrolled flow of a hazardous substance could have severe consequences, the positive seating function of the AVP102 helps prevent leaks and potential accidents.
The self - diagnostic function is another important reliability feature. The positioner constantly monitors its own internal components, the valve, and the actuator for any signs of malfunction. It can detect issues such as sensor failures, electrical problems, and abnormal valve movements. If a fault is detected, the AVP102 immediately sends an alarm signal to the control system or operator. This early warning system allows for timely maintenance and troubleshooting, minimizing the risk of unplanned downtime and process disruptions.
5.3 Versatility in Applications
The AVP102 offers remarkable versatility in terms of its application range. With its ability to be configured for different input ranges, flow characteristics, and actuator types, it can be used in a wide variety of industrial processes. In the oil and gas industry, it is used to control the flow of crude oil, natural gas, and refined products in pipelines, refineries, and storage facilities. In petrochemical and chemical plants, it plays a crucial role in regulating the flow of various chemical substances during production processes.
The pulp and paper industry also benefits from the AVP102's versatility, as it can be used to control the flow of pulp, water, and chemicals in paper manufacturing processes. In the food and beverage industry, where precise control of ingredient flow is essential for product quality, the AVP102 ensures accurate and reliable valve operation. It is also widely used in industries such as power generation, steel and metal processing, and automotive manufacturing, demonstrating its broad applicability across different industrial sectors.
5.4 Cost - Effectiveness
Despite its advanced features and high - quality construction, the Yamatake AVP102 offers excellent cost - effectiveness. Its long - term reliability reduces the need for frequent maintenance and replacement, resulting in lower overall operating costs. The ability to be easily configured for different applications means that a single model can be used in multiple scenarios, eliminating the need to purchase different positioners for various valve types and processes. This reduces inventory costs and simplifies the procurement process.
The energy - efficient design of the AVP102 also contributes to cost savings. It consumes minimal power during operation, helping to lower energy bills in industrial plants. Additionally, the reduced risk of process disruptions and downtime due to its reliable performance leads to increased productivity and fewer losses associated with interrupted production, further enhancing its cost - effectiveness.
5.5 Compatibility and Integration
The AVP102 is highly compatible with a wide range of valves, actuators, and control systems. It can be easily integrated into existing industrial automation setups, whether they are based on traditional pneumatic control systems or modern digital control networks. The standard 4 - 20 mA input signal makes it compatible with most process control systems, allowing for seamless communication between the positioner and the control room.
The positioner also supports various communication protocols, such as HART (Highway Addressable Remote Transducer), which enables two - way communication between the AVP102 and the control system. This allows for remote configuration, monitoring, and diagnostic capabilities, providing greater flexibility and convenience in plant operation and maintenance. Whether in a small - scale industrial facility or a large - scale complex plant, the AVP102 can be integrated effectively to enhance the performance of the valve control system.
6. Application Examples
6.1 Oil and Gas Pipeline Control
In an oil and gas pipeline network, the Yamatake AVP102 is used to control the flow of oil or gas at various points along the pipeline. For example, at pipeline junctions, the AVP102 precisely positions the valves to regulate the distribution of the fluid between different branches. It ensures that the flow rate remains within the desired range, taking into account factors such as pipeline pressure, temperature, and the demand from downstream facilities.
The AVP102's high reliability and ability to operate in harsh environments are crucial in this application. The pipelines may be located in remote areas with extreme weather conditions, and any failure in valve control could lead to significant losses and safety hazards. The self - diagnostic function of the AVP102 continuously monitors the valve and positioner operation, alerting operators to any potential issues in a timely manner.
6.2 Chemical Process Control
In a chemical manufacturing plant, the AVP102 is used in numerous processes to control the flow of raw materials, intermediate products, and finished chemicals. For instance, in a polymerization process, the AVP102 accurately controls the flow of monomer feedstock into the reactor. By precisely positioning the valves, it ensures a consistent and controlled flow rate, which is essential for the quality and yield of the polymer product.
The ability to configure the AVP102 for different flow characteristics is particularly useful in chemical processes. Depending on the nature of the chemical reaction and the requirements of the process, the linear, equal percentage, or custom flow characteristics can be selected. This allows for optimized control of the chemical reactions and better overall process efficiency.
6.3 Power Generation Plant
In a power generation plant, the AVP102 plays a vital role in controlling the flow of steam, water, and other fluids. For example, in a steam turbine system, the AVP102 controls the valves that regulate the steam flow to the turbine. By accurately positioning these valves, it ensures that the turbine operates at the optimal speed and power output, maximizing the efficiency of the power generation process.
The AVP102's resistance to high temperatures and vibrations, which are common in power generation plants, makes it a reliable choice for this application. The self - diagnostic and adaptive control features also help maintain the stable operation of the valve system, reducing the risk of turbine failures and power outages.
7. Conclusion
The Yamatake AVP102 Valve Positioner is a highly advanced and reliable device that offers a wide range of features and benefits for industrial applications. Its easy setup, high reliability, versatility, cost - effectiveness, and compatibility make it a top choice for industries such as oil and gas, petrochemical, chemical, power generation, and many others.
By accurately positioning valves and providing real - time feedback and control, the AVP102 helps optimize process control, improve system efficiency, and enhance overall plant performance. Its self - diagnostic and adaptive control features ensure continuous and trouble - free operation, even in the most challenging industrial environments.
As industries continue to strive for greater automation and efficiency, the Yamatake AVP102 Valve Positioner will undoubtedly play an increasingly important role in ensuring the smooth and reliable operation of valve - based control systems. Whether in new installations or retrofitting projects, the AVP102 offers a comprehensive solution for precise valve control, making it a valuable asset for any industrial plant.
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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