Smart Electric Control Valves: The Core of Industrial Automation
In the realm of industrial automation, smart electric control valves have become essential for fluid regulation due to their precise control and intelligent features. KNKE Industrial’s product line in this category offers five key advantages to meet the demands of diverse industrial applications. Here is a detailed breakdown:
1. Dual Smart Fault Protection
- Adaptive Fail-Safe on Signal Loss: When the control signal is lost, the actuator can be configured to perform one of four actions: fully open, fully closed, hold position, or move to a preset position (0-100%). This prevents system runaway, a critical safety feature in chemical plants where a valve may need to close to prevent leaks.
- Stalling Pre-warning Protection: An integrated torque monitoring module detects valve jamming in real time. It automatically triggers an alarm and shuts down the motor to prevent overload damage, significantly reducing maintenance costs.
2. Efficient Sealing Structure Design
- Top-Guided Single-Seated Structure: Compared to traditional control valves, this simpler design offers a 15-20% higher flow coefficient, making it ideal for high-flow applications such as water supply and drainage systems or oil transportation.
- Low Leakage with Shut-off Function: The valve seat meets high industry standards for low leakage. The TP series with soft sealing combines both regulating and shut-off functions, eliminating the need for a separate shut-off valve and saving space and cost. This is particularly beneficial for the pharmaceutical and food industries.
3. Advantages of the PSL Smart Actuator
- Compact Size with High Thrust: Paired with a PSL linear actuator, the unit is 30% smaller and 25% lighter while delivering a powerful thrust of up to 50kN, making it suitable for installations in confined spaces.
- High Precision, No Calibration: Hall effect sensor positioning provides a high accuracy of ±0.5%, eliminating mechanical potentiometer failures. Electronic limit switches require no manual calibration or opening of the cover, boosting installation efficiency by 60%.
4. Integrated Self-Diagnostic Design
- Highly Integrated Architecture: The drive, control, and display modules are integrated into a single unit, simplifying wiring and ensuring compatibility with multiple control systems.
- Smart Fault Troubleshooting: The built-in self-diagnostic program monitors for over 20 potential faults (e.g., power anomalies, motor overheating). Error codes allow for quick problem identification, halving maintenance time.
5. Visual Digital Interface
- Real-Time Status Display: A digital window simultaneously displays the control signal (4-20mA) and valve opening percentage (0-100%), with clear readability even in bright light.
- User-Friendly Operation: Non-intrusive touch buttons allow for easy calibration. The one-touch factory reset feature simplifies the debugging process, reducing both the difficulty of manual adjustments and training costs.
KNKE’s smart electric control valves are engineered for safe, efficient, and easy-to-maintain industrial control through a combination of fault protection, structural optimization, intelligent actuation, self-diagnostics, and a user-friendly visual interface. They are suitable for a wide range of applications in chemical, energy, environmental, and other fields.