3-POINT ACTUATOR MV 120, 230V

Product detailed description

This 3-point actuator is commonly used in central heating systems for precise control of temperature and flow in mixing circuits. It is typically installed in residential, commercial and industrial buildings where 3-4 port mixing valves are used to regulate hot water distribution. The actuator ensures accurate positioning of the valve to maintain system efficiency and comfort. It is particularly suited for applications involving underfloor heating, radiator circuits and domestic hot water systems where temperature stability is critical.

When installing this actuator, the technician should consider the system's hydraulic requirements and the valve's mechanical characteristics. The actuator must be properly aligned with the valve stem to ensure smooth operation and avoid mechanical stress. The 105 seconds per 90 degrees rotation time allows for controlled movement, preventing sudden changes in flow that could affect system balance. The maximum torque of 8Nm must be sufficient to overcome the resistance of the valve in the operating temperature range.

Technical parameters

Installation and connection

Installation begins with verifying the valve type and ensuring the actuator is compatible with the 3-4 port mixing valve. The actuator is mounted directly onto the valve stem using the provided fastening hardware. The electrical connection requires a 230V 50Hz power supply, which must be properly isolated and protected. The technician should check the alignment of the actuator with the valve stem to prevent binding during operation. Common installation mistakes include incorrect torque settings, misalignment of the actuator body and failure to secure the electrical connections properly. After installation, the actuator should be tested manually to confirm smooth operation before connecting to the control system.

Compatibility and accessories

This actuator is specifically designed for use with 3-4 port mixing valves of the ROTOMIX type. It is not compatible with other valve types without modification. When ordering, ensure that the valve is correctly sized and that the actuator is compatible with the valve's stem and connection type. No additional accessories are required for standard installation, but a control system must be in place to enable automatic operation. The actuator can be integrated with thermostats, room controllers and building management systems for automated temperature regulation.

Technical background for designers

The actuator operates using an electric motor that drives a gear train to rotate the valve stem. The motor is controlled by an internal circuit that allows for both manual and automatic operation. The materials used in the construction of the actuator are selected for durability and resistance to the operating temperatures and media. The actuator is designed to integrate seamlessly into heating systems, providing reliable positioning of the valve to maintain system efficiency. The service life and efficiency of the actuator are influenced by proper installation, correct torque settings and the operating conditions of the system. Regular maintenance is not required, but the actuator should be inspected periodically for signs of wear or damage.

Service and operation

During normal operation, the actuator requires no regular maintenance. However, it should be inspected periodically to ensure that the mechanical components are functioning correctly and that there is no binding or resistance in the movement of the valve. The electrical connections should be checked for signs of wear or damage, and the actuator should be tested manually to confirm smooth operation. If the actuator fails to operate correctly, the cause should be investigated to determine whether the issue is mechanical or electrical in nature. No specific service intervals are required for this actuator.

Frequently asked questions

Can the actuator be used with other valve types?
It is specifically designed for use with 3-4 port mixing valves of the ROTOMIX type. Using it with other valve types may require modification and is not recommended.

Is manual operation possible without the control system?
Yes, the actuator can be operated manually using the built-in override mechanism. This allows for adjustments to be made without the need for a control system.

What is the maximum operating temperature of the actuator?
The actuator is rated for a maximum operating temperature of +55°C in the surrounding environment and can handle media temperatures up to +110°C.

Can the actuator be integrated with a building management system?
Yes, it can be connected to a control system for automated operation. The integration requires a compatible control signal and proper wiring to the actuator's electrical terminals.