Fail-Safe Zero-Leak Motorized Valve for FCU Systems

The primary value is enhanced system safety and reliability. In the event of a power outage, the valve uses its built-in supercapacitor to automatically and rapidly close (in approx. 45 seconds). This prevents uncontrolled flow of hot or cold water, effectively mitigating water damage, leaks, and energy waste, providing the highest level of system security.

Zero leakage means that the medium (hot or cold water) is completely shut off (0% leakage rate) when the valve is closed. This is crucial for: 1. Precise Temperature Control: Ensuring accurate room temperature regulation by preventing medium bypass. 2. Energy Efficiency: Guaranteeing zero energy waste in unoccupied zones by eliminating constant flow.

The maximum shut-off differential pressure of 3.2 bar is primarily achieved on the DN15 and DN20 nominal sizes. This high differential pressure rating ensures the valve can reliably and stably close against high hydraulic pressure, which is essential in complex systems like high-rise buildings.

The valve is driven by a supercapacitor. Upon an unexpected power interruption, the actuator initiates the closing sequence, completing the movement to the fully closed position in approximately 45 seconds, ensuring a quick and safe system response.

The applicable medium temperature range is wide, from -10°C to 100°C. This versatility ensures the valve is suitable not only for standard cold and hot water systems but also for challenging applications requiring antifreeze (glycol solution up to 50%) or tolerance for high temperatures.

Yes, the series offers two power versions: 18-30VAC (24VAC) and 100-240VAC (220VAC), accommodating diverse system designs. The wiring is typically a simple 2-wire control (Blue and Brown wires), governed by an external thermostat or controller signal.

Installation is straightforward and typically requires no specialized tools. The actuator utilizes the industry-standard M30x1.5 threaded connection, making it highly compatible for direct replacement or installation onto most valve bodies conforming to this standard.

The warranty period for the product is stipulated in the final sales contract. We commit to providing a robust global after-sales service support network and professional engineering teams to ensure timely response and resolution for any technical issues during project design, installation, and maintenance.