Fuel pump Suntec AT2 45A 9547 4

The Suntec AT245A9547 oil pump is designed for burner systems with two pressure stages. It features an integrated shut-off solenoid valve in the nozzle line and an additional solenoid valve for switching between low and high pressure, ensuring stable fuel delivery and flexible operation. Fuel is drawn by the gear set through an integrated filter and supplied to the nozzle, with separate regulating valves assigned to each pressure stage. The normally closed solenoid valve in the nozzle line provides fast and reliable fuel shut-off, independent of motor speed. Suntec AT245A9547 oil pump technical data: Mounting: hub mounting according to European standard EN 225 Connection thread: cylindrical according to ISO 228/1 Suction and return line: G¼" Nozzle outlet: G⅛" Pressure gauge port: G⅛" Vacuum gauge port: G⅛" Valve function: pressure regulation Filter mesh size: 150 µm Shaft: Ø 8 mm according to EN 225 Bypass plug: installed in the return line for two-pipe systems; removed with a 4 mm hex key for single-pipe systems Weight: 1.3 kg Nozzle pressure range: low pressure 8–15 bar; high pressure 12–25 bar Factory pressure settings: low pressure 9 bar; high pressure 22 bar Operating viscosity: 2–12 mm2/s (cSt) Fuel temperature in pump: 0–60 °C Inlet pressure: max. 2 bar Outlet pressure: max. 2 bar Suction lift: max. 0.45 bar vacuum Nominal speed: up to 3600 rpm