Motorized valves not only enable remote on/off control but also incorporate various functions tailored to different applications, offering users greater intelligence in operation, control, and maintenance.
This article introduces several common feature types favored by valve buyers in Europe, America, and Southeast Asia. These include power-off reset, normally open/normally closed modes, angle adjustment functionality, and signal feedback capabilities.
1. Fail-Safe Motorized Valve
A fail-safe motorized valve automatically returns to a preset position after power loss or failure. Typically, it either closes automatically after power loss or opens automatically after power loss.
This design is commonly used in applications with high safety requirements, such as water treatment systems and fire protection systems. This functionality ensures the system maintains a safe position during emergency power outages or malfunctions.
2.Normally Open / Normally Closed Valve
Motorized valves can be designed in NO or NC modes.
Normally Open Valve: Closes when energized and opens when de-energized.
Normally Closed Valve: Opens when energized and closes when de-energized.
This feature reduces actuator standby power consumption.
3.Modulating valve
Some modulating valves support 0-90° angle adjustment and proportional control, enabling precise regulation of fluid flow.
Commonly used in:
Smart irrigation systems
Flow control for automated equipment
4.Motorized Valve with Feedback Signal
The signal feedback function enables real-time status monitoring of valves via indicator lights, facilitating remote monitoring, position confirmation, and fault alarms.
Signal feedback is key to enhancing system visibility and safety.
5. Additional Features
Manual emergency shut-off function: Motorized valves can be equipped with handwheels or hex wrenches for manual closure during power outages.
Modbus and RS485 communication protocols
Data transmission capability
WiFi remote control functionality
These features are also highly sought after for export to European and American markets.
Summary
Motorized valves offer more than just on/off functionality; they can incorporate multiple features to meet diverse operational requirements. Whether it's power-fail reset, normally open/normally closed operation, angle adjustment, or signal feedback, these capabilities enhance the automation and intelligence of the system.