building. climate. excellence.
building. climate. excellence.
NexusValve Vivax G2 EQM
NexusValve Vivax G2 EQM is a combination of a balancing valve and a control valve that maintains a constant flow rate regardless of pressure fluctuations in the heating or cooling systems. Thanks to an accurate balancing, as well as the equal percentage control characteristic, your flow management for the emitter has never been so precise.
The integrated differential pressure regulator ensures a high level of control authority while preventing over-supply in the system at all times. Without an actuator, the NexusValve Vivax G2 EQM is a flow limiter. In this way, the valve guarantees the intended flow rate in the end devices, regardless of the requirements of other consumers or lines in the system, thus saving energy. Measuring connections enable flow measurement thanks to a balancing computer.
The equal-percentage valve characteristic (EQM) and the typical characteristic curve of heating and cooling systems result in a linear overall characteristic curve that enables efficient control of the system.
Ideal control for optimal room temperature control. The built-in differential pressure controller provides high control authority whatever the pressure variation of the heating or cooling system.
The NexusValve Vivax G2 EQM is designed to have the best control stroke length in the market for an EQM PICV. The significant stroke of 3 mm at the lowest pre-set up to 6 mm at the maximum pre-set provides most accurate modulating control behaviour over the whole flow range.
Real field diagnostic
Differential Pressure: 15 - 400 kPa
Heating and Cooling application: 0°C - 90 °C
Max Pressure: PN25
NexusValve Vivax G2 EQM DN15 S
NexusValve Vivax G2 EQM DN20 S
The NexusValve Vivax G2 EQM has an equal % control valve characteristic (EQM). This compensates for the unfavorable performance curve of a typical heating system and thus creates an overall linear control characteristic.
More informationThe volume flow is limited by turning the valve cylinder relative to the valve housing. The selected preset is indicated by the arrow on the valve cylinder and the cover. The NexusValve Vivax G2 EQM reduces pressure fluctuations of the system in the lower part, thus keeping the flow constant.
The flow rate is controlled by combining the NexusValve Vivax G2 EQM with an actuator that can be screwed directly onto the valve. The actuator must be able to work by stroke recognition so that its calibration ensure the well-functioning of the valve by managing the complete valve stroke. The actuator actuates the spindle, thereby partially closing the valve and reducing the flow rate. This is counteracted by the valve spring, which opens the valve again and thus increases the flow rate.
To check the flow, the NexusValve Balancing Computer BC3 is
connected to the measuring points of the NexusValve Vivax G2. If at least the smallest differential pressure of the working range is displayed, the required flow rate can be set.
The NexusValve Balancing Computer BC3 is designed for NexusValve Vivax G2 EQM PICV and enables hydraulic balancing of heating and cooling systems. The device is used to measure static pressure, differential pressure and flow in these systems. The flow can be measured in all areas of the hydraulic system and the entire system can be balanced in a simple and efficient way.
Innovation, ease of installation, 10-year guarantee. HFC solutions offers comprehensive solutions for specifiers and installers.
Download the folderOur experts are on a continuous quest to discover cutting- edge technologies to adapt to growing demands for sustainable and energy-efficient installations. Under the Aalberts hydronic flow control brand, both Flamco and Comap produce from source to emitter solutions.
Because everyone deserves optimal comfort, the world needs cleaner heating and cooling technology and our customers require a one-stop specialist for innovative hydronic solutions.
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