SHUANGLIN VALVE NC Thermal Electric Actuator – Silent Closed Design

The SHUANGLIN VALVE NC thermal electric actuator is designed for hydronic floor heating systems where default-closed safety behavior is required. In its normal state, the actuator remains closed, ensuring that the water circuit is securely shut off until electrical power is applied.

This configuration is widely used in residential and commercial HVAC systems where energy efficiency and safety control are critical. When connected to a room thermostat or zone controller, the actuator opens the valve only when heating demand is detected, helping to reduce unnecessary water circulation and improve system efficiency.

The compact design with M30×1.5 mm thread ensures compatibility with most manifold valves used in modern underfloor heating systems. Its IP54 protection rating provides resistance against dust and water splashes, making it suitable for installation inside mechanical rooms or manifold cabinets.

The visual stroke indicator allows installers and maintenance personnel to quickly check valve status without disassembly, improving commissioning efficiency and reducing troubleshooting time.

Key Features

• Normally closed (NC) safety operation

• IP54 protection for HVAC environments

• Standard M30×1.5 mm compatibility

• Energy-saving control behavior

• Visual position indicator

• Quiet thermoelectric operation

Applications

Underfloor heating systems, radiant heating circuits, HVAC zoning systems, and residential manifold installations.