Danfoss 071N2203 BFP52E R3 oil pump

Danfoss 071N2203 BFP52ER3 gear pumps used in small and medium-sized 2-level household burners with fuel consumption up to 42 l/h.

Danfoss BFP52ER3 071N2203 oil burner pumps technical data:

• Viscosity range (in the suction line): 1.8-12.0 cSt(mm2/s)
• Filter area / cross-section: 11/200 cm2/microns
• Pressure range 1: 7-15 bar
• Pressure range 2: 10-25 bar
• Factory settings: 10/13 ±1 bar
• Max. pressure in the suction/return line: 2 bar
• Shaft rotation speed: 2400-3450 min
• Max. starting torque: 0.1 Nm
• Ambient/transport temperature: -20 to +70 °C
• Fuel temperature: 0 to +70 °C
• Coil protection degree: IP40
• Shaft: EN225

Danfoss BFP52ER3 071N2203 oil pumps adjustment:

Fuel passes through the filter to the gear mechanism, increasing pressure. The regulator maintains constant pressure. The NC valve opens fuel supply to the nozzle, while the NO valve disables the regulator when activated. In two-pipe mode, excess fuel returns to the tank; in one-pipe mode, it goes to the bypass. When the burner stops, both valves close, stopping fuel flow. In two-pipe mode, no purge is required; in one-pipe mode, purging is done via the nozzle or pressure gauge ports.