The MENRED VSI46 Series is a 3-port control valve designed for water-flow control in fan coil units and HVAC heating and cooling systems.
The valve can be combined with a compatible motorized actuator or electro-thermal actuator to regulate water flow according to the system control signal. Three valve sizes are available from DN15 to DN25, with Kvs values from 2.0 to 5.0 m³/h.
| Series | VSI46 |
| Valve Type | 3-Port Control Valve |
| Operating Pressure | PN16 |
| Valve Characteristic | Linear |
| Stroke | 2.5 mm |
| Medium Temperature | 0–110°C |
| Leakage Rate — Path A→AB | 0–0.05% of Kvs |
| Bypass AB→B | Max. 2–5% of Kvs |
| Valve Body | Brass |
| Stem | Stainless Steel |
| Plug / Seat / Gland | Brass |
| Stem Seal | EPDM O-Ring |
| Model | DN | Kvs (A→B) | Connection |
|---|---|---|---|
| VSI46.15 | DN15 | 2.0 m³/h | Rp 1/2" |
| VSI46.20 | DN20 | 3.5 m³/h | Rp 3/4" |
| VSI46.25 | DN25 | 5.0 m³/h | Rp 1" |
The VSI46 valve can be combined with compatible MENRED electric or electro-thermal actuators according to the control requirements of the HVAC system.
For fast motorized water-flow control, see the MENRED SEA23 Electric Actuator .
Send us your pipe size, required flow rate and HVAC control requirements. MENRED can help you evaluate a suitable VSI46 valve and actuator combination for your project.
Contact MENRED for Project Support
Since its inception in 1995, Zhejiang Menred Comfort System Co., Ltd., affectionately known as Menred, has firmly established itself as a beacon of innovation and excellence in the global manufacturing industry. Specializing in 'radiant heating and cooling, ventilation, water purification, and smart home' systems, Menred is not only a trusted partner of the National Key Laboratory of 'Future Building' but also proudly serves as a certified factory for Electrolux AB, a leading name in the global appliance arena. At 'MENRED Comfort Home', we have ambitiously evolved from mere temperature control solutions to comprehensive systematic air conditioning systems. Our focus is not just on cost-effective solutions but on pioneering energy efficiency, putting the user's needs at the heart of our product development. Our passion extends to creating sublime comfort home product solutions, spearheading the innovative development of green building equipment, and delving into the engineering application and research of Building Integrated Photovoltaic (BIPV) and energy storage solutions. Within the esteemed Menred group, we proudly house 4 National High-tech Enterprises alongside 3 enterprises recognized for High-quality Technological Advancement. These enterprises have not only been conferred with the prestigious national title of Technologically Advanced Little Giant' but also have been distinguished as Service Oriented Manufacturing Demonstration Enterprises, signifying our commitment to excellence and innovation.



