Motorized 3-Way Zone Valves Series VMR

About Motorized 3-Way Zone Valves Series VMR

Motorized 3-Way Zone Valves Series VMR

MOTORIZED 3- WAY ZONE VALVES SERIES VMR

MAIN CHARACTERISTICS : VMR valves are motorized valves used in home application and small instillation to control the flow of hot and cold water. They can be used as the shunt or mixing valves in centralized heating and cooling system. The valve thanks to its cylindrical shut-off, shunt flow, which is independent from the differential pressures between the various ports. This shut-off can have two operating position depending on how the electrical motor that have moves it is powered. The head of the valves can be removed without draining the plumbing system: this makes valves maintains quick and flexible. An auxiliary micro switch can be install Ed on request can be activated when the valve is switched. Valves have an external lever for manual positioning the shut-off is central position.

FUNCTION: All moving parts and seals of the valves are assembled in a cartridge. O-rings on the outer surface of the piston guarantee a hermetic seal of valves ports. When the valves stem is in its low position the valves is open and the flow passes and through the holes in the cylindrical shut-off. When the system is in its high position, the flow is blocked. Switchover from one path to the other takes about 6 seconds.

USING THE MANUAL LEVER: A lever is positioned on the side of the servomotor that permits manual positioning of the shut-off in an intermediate position. The manual lever can only maneuvered when it is in its upper position. The valve can be opened by firmly pressing the manual lever both down and until its locks in an intermediate position. The valve is open in this position. This is useful when filling and emptying the system or when there is power failure. The lever is automatically reset from manual to automatic whenever the valve is electrically activated.

FUNCTIONAL CHARACTERISTICS : Aux contact capacity 3A , 250 Vac. Absorbed power: 4W Travel time between ports 6 seconds Total standard cable length 1000 mm Rated supply Voltage 220-240 (also 24) Vac.; 50/60Hz isolation class European standard Ref. ii EN 60730 Degree of protection IP 40 IEC 529 standards European standards Ref. CEI EN 60529 Maximum deferential pressure 4 kg/cm2 (392kPa) Rated pressure PN 10kg/cm2 Flow tem. limits 5/110C Maximum room temperature : 60C

MATERIALS : Valve body: Brass Return springs steels Motor covers Self-extinguishing ABS Valve steam Stainless steel

1)  APPLICATION EXAMPLE AS 3-WAY ZONE VALVE (With external SPST control) the zone room thermostat control opening and closing of the relatives VMR valves. When there is no demand it interrupts power to the valve, which closes the zone and circulated water, back toward the boiler return circuit. A meter installed which permits efficient sharing of operating costs. It is good practice to balance load losses in the recirculation pipeline to avoid excessive flow rate variation in the other circuits during valve operation.

2)  APPLICATION EXAMPLE GIVING PRIORITY TO THE HOT WATER HEATER We use this installation system mainly on combined boilers to permit the temperature of domestic hot water to be adjusted at the desired value. The valve is used for priority over the heating system.

 

Efficient Zoning for Optimal Comfort

The Series VMR Motorized 3-Way Zone Valve provides controlled distribution of hot or cold water in HVAC systems, making it ideal for precise temperature management in residential or commercial spaces. With its rapid actuation time and reliable spring return, you experience consistent comfort and energy efficiency.


Versatile Applications Across Systems

Engineered for use in hydronic heating, chilled water systems, and solar heating circuits, this valve adapts seamlessly to various zoning requirements. Its compatibility with water and glycol mixtures up to 95C allows broad usage across heating and cooling applications, maximizing system flexibility.


Safety, Durability, and Ease of Maintenance

Built with a brass body and a robust actuator, this zone valve offers long-lasting performance. Detachable actuator, manual override, and an external position indicator ensure straightforward servicing, while insulation Class II and IP40 protection enhance safety in demanding environments.