Danfoss 071N7157 BFR21 R3 مضخة الزيت

Danfoss BFP21R3 071N7157 oil pumps used in small and medium-sized household burners with a fuel consumption of up to 42 l/h. Danfoss 071N7157 BFP21R3 oil burner pump features: Light fuels and kerosene 1 and 2 pipe modes of operation 1 pressure level Built-in pressure regulator Cassette filter Danfoss BFP21R3 071N7157 gear pump 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: 7-20 bar Factory settings: 10 ±1 bar Max. pressure in the suction/return line: 2 bar Shaft rotation speed: 2400-3450 min Max. starting torque: 0.1 Nm Ambient temperature: -20 to +70 °C Storage temperature: -25 to +120 °C Fuel temperature: 0 to +70 °C Coil protection degree: IP40 Shaft: EN225 Danfoss 071N7157 BFP21R3 oil pump adjustment: Fuel passes through the filter to the gear mechanism, increasing pressure. The NC valve opens when powered, allowing fuel to reach the nozzle. The regulator maintains constant pressure. In two-pipe mode, excess fuel returns to the tank; in one-pipe mode, it goes to the bypass.