Pump group Esbe GRB301 VRD138-4.0-20-W [4630851]

Variable primary flow and constant secondary flow. Powerful circulator with 21 flow settings and power consumption feedback. Compact design. Pre-tested and ready to install.

The ESBE GRB300 series is a compact design unit intended for efficient energy transfer in heating circuits where flow and temperature control are required. They are suitable for applications such as supply air coil units, fan coil units, radiators and comfort cooling. The GRB300 series circulation units are supplied with a rotary mixing valve with bypass channel, six versions with different Kvs values ​​from 0.4 to 4.0. The bidirectional function allows for adjustable primary flow and constant secondary flow. The valve is manually adjusted with a knob, but can be equipped with an actuator or a controller. The circulation units are equipped with thermometers, a high-quality insulating shell and a highly efficient circulation pump with 21 different flow settings directly on the pump and feedback on flow, power consumption and pump settings.