| Max. operating pressure | 350 bar |
| Volume flow max. | 25 l/min |
| Valve actuation | Hydraulic |
Proportional way valves
1 - 9
| Max. operating pressure | 350 bar |
| Volume flow max. | 5 to 30 l/min |
| Valve actuation | Hydraulic |
| Max. operating pressure | 320 bar |
| Volume flow max. | 4 to 12 l/min |
| Valve actuation | Hydraulic |
| Max. operating pressure | 350 bar |
| Volume flow max. | 30 to 60 l/min |
| Valve actuation | Hydraulic |
| Max. operating pressure | 320 bar |
| Volume flow max. | 4 to 12 l/min |
| Valve actuation | Hydraulic |
| Max. operating pressure | 350 bar |
| Volume flow max. | 30 to 80 l/min |
| Valve actuation | Hydraulic |
| Max. operating pressure | 350 bar |
| Volume flow max. | 30 to 80 l/min |
| Valve actuation | Hydraulic |
| Max. operating pressure | 350 bar |
| Volume flow max. | 5 to 30 l/min |
| Valve actuation | Hydraulic |
| Max. operating pressure | 350 bar |
| Volume flow max. | 5 to 30 l/min |
| Valve actuation | Hydraulic |
Proportional directional valves are an important component of hydraulic systems and play a crucial role in controlling flow and pressure. They enable precise and controlled movements in various applications such as industrial, automotive and mobility.
A proportional directional control valve consists of a valve body, a control valve and an actuator cylinder. The control valve is connected to an electric control unit that regulates the movement of the drive cylinder. There are several types of proportional directional valves, including electromagnetic valves, electrohydraulic valves, and piezoelectric actuator valves. Each type offers specific advantages and functions that can be selected according to requirements and application.
The main function of a proportional directional control valve is to control the flow and pressure of a hydraulic fluid. Precise control of the valve allows the flow and pressure to be adjusted as required. This enables high flexibility and efficiency in various applications. For example, a proportional directional control valve can be used in the automotive industry to control the braking force of a vehicle. It can also be used in industry to control the speed and position of a machine.
Another advantage of proportional directional control valves is their high accuracy and precision. The use of electric control units allows the valves to respond to the smallest deviations and perform precise movements. This is especially important in applications where accurate positioning and speed control are required. For example, proportional directional control valves can be used in robots to perform precise movements and positioning.
In addition, proportional directional control valves allow high flexibility and adaptability. Electrical control allows the valves to be easily adapted to different requirements and conditions. This enables optimal performance and efficiency in a wide range of applications. In addition, proportional directional control valves can be integrated with other components such as pressure sensors, temperature sensors and feedback systems to provide even more precise control and monitoring.
Overall, proportional directional control valves play a crucial role in the control and regulation of hydraulic systems. They provide high accuracy, precision and flexibility to enable precise and controlled movements in various applications. The continuous development of proportional directional control valves and their integration with other technologies are expected to lead to even more advanced and efficient hydraulic systems.
A proportional directional control valve consists of a valve body, a control valve and an actuator cylinder. The control valve is connected to an electric control unit that regulates the movement of the drive cylinder. There are several types of proportional directional valves, including electromagnetic valves, electrohydraulic valves, and piezoelectric actuator valves. Each type offers specific advantages and functions that can be selected according to requirements and application.
The main function of a proportional directional control valve is to control the flow and pressure of a hydraulic fluid. Precise control of the valve allows the flow and pressure to be adjusted as required. This enables high flexibility and efficiency in various applications. For example, a proportional directional control valve can be used in the automotive industry to control the braking force of a vehicle. It can also be used in industry to control the speed and position of a machine.
Another advantage of proportional directional control valves is their high accuracy and precision. The use of electric control units allows the valves to respond to the smallest deviations and perform precise movements. This is especially important in applications where accurate positioning and speed control are required. For example, proportional directional control valves can be used in robots to perform precise movements and positioning.
In addition, proportional directional control valves allow high flexibility and adaptability. Electrical control allows the valves to be easily adapted to different requirements and conditions. This enables optimal performance and efficiency in a wide range of applications. In addition, proportional directional control valves can be integrated with other components such as pressure sensors, temperature sensors and feedback systems to provide even more precise control and monitoring.
Overall, proportional directional control valves play a crucial role in the control and regulation of hydraulic systems. They provide high accuracy, precision and flexibility to enable precise and controlled movements in various applications. The continuous development of proportional directional control valves and their integration with other technologies are expected to lead to even more advanced and efficient hydraulic systems.
What are proportional directional control valves and how do they work?
Proportional directional control valves are hydraulic valves that control the flow of fluid in a hydraulic system. They are used to control the pressure and speed of hydraulic cylinders or hydraulic motors.
Proportional directional control valves work according to the principle of proportionality. This means that the flow through the valve is proportional to the control voltage. They normally work with an electrical signal that controls the valve opening.
The valve consists of a coil body, a coil and a piston. When the electrical signal is applied to the coil, this generates a magnetic field that moves the piston. The piston then opens or closes the flow path in the valve opening to achieve the desired flow rate.
Proportional directional control valves provide precise control of flow and are widely used in various applications, including industrial machinery, construction equipment, vehicles and aircraft. They enable fine control of the hydraulic system to meet precise movements or force requirements.
Proportional directional control valves work according to the principle of proportionality. This means that the flow through the valve is proportional to the control voltage. They normally work with an electrical signal that controls the valve opening.
The valve consists of a coil body, a coil and a piston. When the electrical signal is applied to the coil, this generates a magnetic field that moves the piston. The piston then opens or closes the flow path in the valve opening to achieve the desired flow rate.
Proportional directional control valves provide precise control of flow and are widely used in various applications, including industrial machinery, construction equipment, vehicles and aircraft. They enable fine control of the hydraulic system to meet precise movements or force requirements.
What advantages do proportional directional control valves offer compared to conventional valves?
Proportional directional control valves offer several advantages compared to conventional valves:
1. Precise control: Proportional directional control valves enable precise and infinitely variable control of the flow or pressure. The variable opening width of the valve allows the flow or pressure to be adapted precisely to the requirements of the application.
2. Flexibility: Proportional directional control valves offer a high degree of flexibility in terms of adjusting the valve parameters. The electronic control allows various parameters such as opening width, response time and hysteresis of the valve to be set to meet the requirements of the application.
3. Efficiency: By precisely controlling the flow or pressure, proportional directional control valves can optimize energy consumption. By adjusting the flow rate to the actual demand, unnecessary energy losses can be avoided.
4. Fast response: Proportional directional control valves generally have a fast response time as they are electronically controlled. This allows them to react quickly to changes in demand and adjust the flow or pressure accordingly.
5. High accuracy: Proportional directional control valves offer high accuracy in controlling the flow or pressure. Thanks to the stepless adjustment, you can achieve and maintain the desired value very precisely.
Overall, proportional directional control valves provide precise, flexible and efficient control of flow or pressure, making them a preferred choice in applications where precise control and adjustment are required.
1. Precise control: Proportional directional control valves enable precise and infinitely variable control of the flow or pressure. The variable opening width of the valve allows the flow or pressure to be adapted precisely to the requirements of the application.
2. Flexibility: Proportional directional control valves offer a high degree of flexibility in terms of adjusting the valve parameters. The electronic control allows various parameters such as opening width, response time and hysteresis of the valve to be set to meet the requirements of the application.
3. Efficiency: By precisely controlling the flow or pressure, proportional directional control valves can optimize energy consumption. By adjusting the flow rate to the actual demand, unnecessary energy losses can be avoided.
4. Fast response: Proportional directional control valves generally have a fast response time as they are electronically controlled. This allows them to react quickly to changes in demand and adjust the flow or pressure accordingly.
5. High accuracy: Proportional directional control valves offer high accuracy in controlling the flow or pressure. Thanks to the stepless adjustment, you can achieve and maintain the desired value very precisely.
Overall, proportional directional control valves provide precise, flexible and efficient control of flow or pressure, making them a preferred choice in applications where precise control and adjustment are required.
What areas of application are there for proportional directional control valves?
Proportional directional control valves are used in various areas of application, including
1. Hydraulic systems: Proportional directional control valves are often used in hydraulic systems to control the flow or pressure of fluids. They are used in machines and systems such as presses, injection molding machines, construction machinery and agricultural machinery.
2. Pneumatic systems: Proportional directional control valves are used in pneumatic systems to control the flow or pressure of compressed air. They are used in areas such as automation technology, robotics and vehicle technology.
3. Automotive industry: Proportional directional control valves are also used in the automotive industry. They are used in brake systems, for example, to control the brake pressure. They are also used in vehicle suspensions or steering systems.
4. Medical technology: In medical technology, proportional directional control valves are used in devices such as ventilators or dialysis machines to control the flow of liquids or gases.
5. process industry: In the process industry, proportional directional control valves are used in systems for controlling pressure, flow or temperature. They are used, for example, in chemical plants, in the food industry or in the water and waste water industry.
This list is not exhaustive, as proportional directional control valves can be used in many different industries and applications where precise control of flow or pressure is required.
1. Hydraulic systems: Proportional directional control valves are often used in hydraulic systems to control the flow or pressure of fluids. They are used in machines and systems such as presses, injection molding machines, construction machinery and agricultural machinery.
2. Pneumatic systems: Proportional directional control valves are used in pneumatic systems to control the flow or pressure of compressed air. They are used in areas such as automation technology, robotics and vehicle technology.
3. Automotive industry: Proportional directional control valves are also used in the automotive industry. They are used in brake systems, for example, to control the brake pressure. They are also used in vehicle suspensions or steering systems.
4. Medical technology: In medical technology, proportional directional control valves are used in devices such as ventilators or dialysis machines to control the flow of liquids or gases.
5. process industry: In the process industry, proportional directional control valves are used in systems for controlling pressure, flow or temperature. They are used, for example, in chemical plants, in the food industry or in the water and waste water industry.
This list is not exhaustive, as proportional directional control valves can be used in many different industries and applications where precise control of flow or pressure is required.
What attributes and features should be considered when selecting proportional directional control valves?
When selecting proportional directional control valves, the following attributes and features should be taken into account:
1. Flow rate: The flow rate of the valve should meet the requirements of the application. It must be sufficient to supply the desired volume flow.
2. Pressure range: The valve should be able to handle the required pressure range of the application. It must be able to withstand both the minimum and maximum pressure.
3. Accuracy: The accuracy of the valve is crucial when it comes to precise control and positioning. The more accurate the valve is, the more precisely the desired movement can be executed.
4. Response time: The response time of the valve is important to enable fast movements. The faster the valve reacts, the faster changes in movement can be implemented.
5. Control behavior: The control behavior of the valve refers to its ability to reach and maintain the desired value. It should have a good readjustment to minimize deviations.
6. Lifespan: The service life of the valve is important to ensure that it works reliably for a long period of time. It should be durable and have a high number of operating hours.
7. Ambient conditions: The ambient conditions under which the valve will operate must be taken into account. This includes temperature, humidity, dust and other environmental factors that can affect the valve's performance.
8. Control: The valve should be compatible with the desired control technology, be it analog or digital. It should also support the required interfaces and protocols.
9. Costs: The cost of the valve should be in proportion to the requirements and budget of the project. It is important to choose a valve that offers the required performance without breaking the budget.
10. Manufacturer support: The manufacturer's support is important in order to receive assistance in the event of questions or problems. It is advisable to choose a manufacturer that offers good customer service and technical support.
1. Flow rate: The flow rate of the valve should meet the requirements of the application. It must be sufficient to supply the desired volume flow.
2. Pressure range: The valve should be able to handle the required pressure range of the application. It must be able to withstand both the minimum and maximum pressure.
3. Accuracy: The accuracy of the valve is crucial when it comes to precise control and positioning. The more accurate the valve is, the more precisely the desired movement can be executed.
4. Response time: The response time of the valve is important to enable fast movements. The faster the valve reacts, the faster changes in movement can be implemented.
5. Control behavior: The control behavior of the valve refers to its ability to reach and maintain the desired value. It should have a good readjustment to minimize deviations.
6. Lifespan: The service life of the valve is important to ensure that it works reliably for a long period of time. It should be durable and have a high number of operating hours.
7. Ambient conditions: The ambient conditions under which the valve will operate must be taken into account. This includes temperature, humidity, dust and other environmental factors that can affect the valve's performance.
8. Control: The valve should be compatible with the desired control technology, be it analog or digital. It should also support the required interfaces and protocols.
9. Costs: The cost of the valve should be in proportion to the requirements and budget of the project. It is important to choose a valve that offers the required performance without breaking the budget.
10. Manufacturer support: The manufacturer's support is important in order to receive assistance in the event of questions or problems. It is advisable to choose a manufacturer that offers good customer service and technical support.
What different types of proportional directional control valves are there and how do they differ from each other?
There are various types of proportional directional control valves, which differ in terms of their mode of operation and possible applications. Here are some of the most common types of proportional directional control valves:
1. Electrohydraulic proportional directional control valves: This type of valve uses an electrical control signal to regulate the flow through the valve. They are usually equipped with electrical feedback to ensure precise control.
2. Electromagnetic proportional directional control valves: These valves use electromagnetic forces to control the flow. They are frequently used in pneumatic and miniature applications.
3. Pressure-compensated proportional directional control valves: These valves are able to maintain the flow regardless of the pressure. They automatically adapt to changes in pressure in the system and provide a constant flow rate.
4. Servo-proportional directional control valves: These valves use a combination of hydraulic and electric control to enable precise and fast regulation of the flow. They are often used in demanding applications such as the automotive industry.
The various types of proportional directional control valves differ mainly in their control technology, their accuracy, their response time and their possible applications. The choice of the right valve type depends on the specific requirements of the application.
1. Electrohydraulic proportional directional control valves: This type of valve uses an electrical control signal to regulate the flow through the valve. They are usually equipped with electrical feedback to ensure precise control.
2. Electromagnetic proportional directional control valves: These valves use electromagnetic forces to control the flow. They are frequently used in pneumatic and miniature applications.
3. Pressure-compensated proportional directional control valves: These valves are able to maintain the flow regardless of the pressure. They automatically adapt to changes in pressure in the system and provide a constant flow rate.
4. Servo-proportional directional control valves: These valves use a combination of hydraulic and electric control to enable precise and fast regulation of the flow. They are often used in demanding applications such as the automotive industry.
The various types of proportional directional control valves differ mainly in their control technology, their accuracy, their response time and their possible applications. The choice of the right valve type depends on the specific requirements of the application.
How are proportional directional control valves controlled and how is the flow rate regulated?
Proportional directional control valves are usually controlled by electrical signals. The valve is opened or closed by an electrical control signal. Depending on how high the control signal is, the flow rate of the medium is regulated accordingly.
The flow rate is controlled by a feedback loop. The actual flow rate is measured and compared with the desired setpoint. This difference is used to adjust the control signal for the proportional directional control valve in order to achieve the desired flow rate.
Control can either be by simple P control (proportional control), in which the control signal is proportional to the difference between the setpoint and actual value. Or a more complex PI control (proportional-integral control) is used, in which the time component is also taken into account in order to control the system faster and more accurately.
There are different types of proportional directional control valves, such as electromagnetic or pressure-controlled valves. The exact mode of operation may vary depending on the type, but the basic principle of controlling and regulating the flow usually remains the same.
The flow rate is controlled by a feedback loop. The actual flow rate is measured and compared with the desired setpoint. This difference is used to adjust the control signal for the proportional directional control valve in order to achieve the desired flow rate.
Control can either be by simple P control (proportional control), in which the control signal is proportional to the difference between the setpoint and actual value. Or a more complex PI control (proportional-integral control) is used, in which the time component is also taken into account in order to control the system faster and more accurately.
There are different types of proportional directional control valves, such as electromagnetic or pressure-controlled valves. The exact mode of operation may vary depending on the type, but the basic principle of controlling and regulating the flow usually remains the same.
What challenges can arise during the installation and commissioning of proportional directional control valves?
Various challenges can arise during the installation and commissioning of proportional directional control valves. Some of them are:
1. Compatibility: It is important to ensure that the proportional directional control valve is compatible with the other components of the system, including the control unit, sensors and actuators. The electrical and mechanical specifications must match to ensure smooth operation.
2. Electrical connections: Correct wiring of the proportional directional control valve is crucial. The connections must be properly secured and insulated to avoid short circuits or other electrical problems. Faulty connections can lead to malfunctions or even failure of the valve.
3. Pressure and flow rate adjustments: Proportional directional control valves must be properly set to the correct pressure and flow range. An incorrect setting can result in the valve not working properly or even being damaged. It is important to follow the manufacturer's instructions exactly and to consult a specialist if necessary.
4. Calibration: Proportional directional control valves must be calibrated to achieve the desired performance. This includes setting the control signals and checking the valve position. Incorrect calibration can lead to inaccurate or unstable movements.
5. Fault diagnosis: If the proportional directional control valve is not working properly, troubleshooting can be difficult. It requires knowledge of how the valve works and possibly special diagnostic equipment. It is important to follow the manufacturer's instructions and, if necessary, consult a specialist to identify and rectify problems.
These challenges can make the installation and commissioning of proportional directional control valves time-consuming and complex. Careful planning, precise execution and regular maintenance are crucial to ensure reliable and efficient operation.
1. Compatibility: It is important to ensure that the proportional directional control valve is compatible with the other components of the system, including the control unit, sensors and actuators. The electrical and mechanical specifications must match to ensure smooth operation.
2. Electrical connections: Correct wiring of the proportional directional control valve is crucial. The connections must be properly secured and insulated to avoid short circuits or other electrical problems. Faulty connections can lead to malfunctions or even failure of the valve.
3. Pressure and flow rate adjustments: Proportional directional control valves must be properly set to the correct pressure and flow range. An incorrect setting can result in the valve not working properly or even being damaged. It is important to follow the manufacturer's instructions exactly and to consult a specialist if necessary.
4. Calibration: Proportional directional control valves must be calibrated to achieve the desired performance. This includes setting the control signals and checking the valve position. Incorrect calibration can lead to inaccurate or unstable movements.
5. Fault diagnosis: If the proportional directional control valve is not working properly, troubleshooting can be difficult. It requires knowledge of how the valve works and possibly special diagnostic equipment. It is important to follow the manufacturer's instructions and, if necessary, consult a specialist to identify and rectify problems.
These challenges can make the installation and commissioning of proportional directional control valves time-consuming and complex. Careful planning, precise execution and regular maintenance are crucial to ensure reliable and efficient operation.