Fuel pump Suntec AT2 55B 9406 6

The Suntec AT255B 9406 oil pump is designed for burner systems operating with two distinct pressure stages. The pump is equipped with an integrated solenoid shut-off valve located in the nozzle line, ensuring reliable fuel cut-off during operation. Switching between the low-pressure and high-pressure modes is achieved by means of a second built-in solenoid valve. This design provides precise control of the operating conditions, ensures stable fuel delivery, and enhances the overall performance and flexibility of the burner system across different operating modes. Suntec AT255B9406 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