Fuel pump Suntec AT2 45D 9544 4

The Suntec AT245D9544 oil pump is designed for burner systems operating with switchable pressure levels. The pump features an integrated solenoid shut-off valve located in the nozzle line, providing reliable fuel cut-off. Switching between low and high pressure is carried out by a second built-in solenoid valve, allowing precise control of operating modes and ensuring stable burner performance. The Suntec AT245D9544 oil pump is intended for supplying diesel fuel and is designed for use with a single nozzle line. It supports two pressure stages and can be installed in both single-pipe and two-pipe fuel systems, offering flexibility for various burner configurations. Suntec AT245D9544 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