The B4 enables efficient heat exchange in applications with extreme demands for compactness and narrow temperature approaches. Easy to install and use, the product is small yet flexible, which makes it a particularly good choice for economizer applications focusing on VRF and heat pumps. The B4’s mechanical design makes it suitable for high-pressure refrigerants such as R410A and R32.

Pressure classes
M  Medium.
Max volume flow 1.2 m³/h (5.3 gpm)