The pressure gauge indicates the degree of filter pollution and the possible, static pre-pressure.
The TÜV-tested de-aerators are designed for nozzle capacities of up to 100 l/h and return flow rates of up to 120 l/h; they are suitable for oil temperatures and ambient temperatures of up to 60 °C. The de-aerators are connected to the tank by means of G3/8 female threads and to the burner by means of G3/8 male thread with cone for connection of the burner hoses. Installation with de-aeration hose meets the PROOFED BARRIER requirements - the system is then fully odour-tight. The automatic AFRISO fuel oil de-aerators are suitable for fuel oil EL (DIN 51603-1), diesel (EN 590), biofuel (EN 14213) and biodiesel (EN 14214) with up to 20 % FAME. All versions with metal de-aerator hood can also be used with biofuel and biodiesel with up to 100 % FAME.