Motorized 2-Way Zone Valves Series VMR 2

About Motorized 2-Way Zone Valves Series VMR 2

Motorized 2-Way Zone Valves Series VMR 2

MAIN CHARACTERISTICS : VMR valves are motorized valves used in home application and small instillation to control the flow of hot and cold water. The 2 ports are designed for on-off zones control of domestic systems. The valve, thanks to its cylindrical shut-off, shunts flow which is independent from the deferential pressure between ports. This shun- off can have two operating positions depending on how the electric motor that moves it is powered. The head of the valves can be remove without draining up the plumbing system. this makes valves maintains quick and flexible. without the head the valve is normally closed. An auxiliary micro switch can be installed on request and be actvationing the shut-off in its centre 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.

USING THE MANUAL LEVER: Lever 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 5/110°C Maximum room temperature : 60°C

MATERIALS : Valve body : Brass Return springs: steels Motor cover self-extinguishing ABS Valve steam Stainless steel

1)   APPLICATION EXAMPLES AS-2 WAY ZONE VALVE        (WITH EXTERNAL SPST CONTROL)

It is necessary however to use the VMR valve with an auxiliary micro end switch, this is to stop the pump.         when all of the valves are closed. Other components such as valves with a deferential by- pass are required to avoid bothersome noise and to maintain constant pressure to the pump.

2)   APPLICATION EXAPLE GIVING PRIORITY TO THE HOT WATER HEATER

This system with 2 way valves is used when the flow rate required by the heating system is different from that of the hot water heater. in this case one can choose valves with different flow rates, in order to contain the load loss.

High Performance and Durability

The VMR 2 Series motorized zone valve is engineered to deliver excellent reliability over a long service life, exceeding 100,000 operation cycles. Protected to IP40 standards, it withstands harsh environments while supporting fluid temperatures up to 90C and pressures up to 16 Bar. Its brass construction ensures robust resistance to wear and corrosion, making it a solid investment for both new and retrofit systems.


Versatile Installation and Application

Designed for adaptability, the VMR 2 Series can be mounted in any position except with the actuator below the horizontal. This flexibility, paired with simple threaded BSP connections, accelerates installation time. The valve fits port sizes DN15, DN20, and DN25, supporting a range of HVAC, heating, and water systems in residential, commercial, and industrial settings across India.


Effortless Control and Maintenance

With a quick and reversible actuator, the VMR 2 Series offers seamless integration into automatic thermostatic or manual control systems. The actuator is detachable, facilitating swift part replacements and system maintenance. Its precise on/off flow design guarantees effective isolation and control, enhancing the overall efficiency and safety of the system.