for controlling the distribution of heat-exchange media between different channels (; arrangements of guide plates or guide vanes F28F9/22, F28F25/12)

Full Title

Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus (control arrangements in general G05) > for controlling the distribution of heat-exchange media between different channels (; arrangements of guide plates or guide vanes F28F9/22, F28F25/12)