Danfoss BFP 21 R5 Oil Pump - 071N7173

Danfoss SKU: PHP6515
Danfoss BFP 21 R5 Oil Pump - 071N7173

Danfoss BFP 21 R5 Oil Pump - 071N7173

Danfoss SKU: PHP6515
Prix régulier £100.00

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Danfoss BFP21 R5 - 1 Stage Oil Pump 071N7173 - 8mm shaft

The Danfoss BFP 21 sizes 3, 5 and 6 oil pumps are designed for small/medium-sized domestic oil burners up to 42 l/h.

Danfoss BFP21R5 Features

  • Light oil and Kerosene
  • 2 pipe operation
  • 1 Stage
  • Clockwise rotation
Danfoss BFP21 R5 Fuel Specs

Danfoss BFP2 Inlet/Outlet Diagram

From the suction inlet (S) oil is drawn through the filter (H) to the gear set, where the pressure is increased. When voltage is applied to the NC-valve (normally closed), it opens and releases oil to the nozzle outlet. By means of the diaphragm (D) in the pressure regulator (T) the pressure is kept constant at the value set on adjustment screw (P1). In 2-pipe systems the excess oil is led back to the return outlet (R) and the tank. In 1-pipe systems with plugged return outlet (R) and a bypass washer (horseshoe) mounted on screw (A), the oil is returned internally to the gear set (see figure).

Danfoss BFP21 R5 Dimensions

071N7173 Oil Pump Dimensions

1 or 2 stage 1
Actuator type NC
Ambient temperature [°C] [Max] 70 °C
Ambient temperature [°C] [Min] -20 °C
Application area Domestic
Application type Domestic
Capacity [l/h] 42 L/h
Capacity group 25-49
Capacity range [l/h] [Max] 49 L/h
Capacity range [l/h] [Min] 25 L/h
Closing function Cut-off
Comments Rotation and nozzle/pressure outlet are always determined viewing from the shaft end of the pump.
Definition point [l/h] 2800 min-1, 10 bar, 4.3 cSt
Description BFP21R5 L+R
Factory pressure setting [bar] 10 bar
Filter area [cm²] 11 cm2
Filter grade [µm] 200
Filter type Cartridge
Flats/key on the shaft 1 flat
Nozzle/pressure outlet L + R
Number of pipes 2
Number of stages 1
Oil pump speed [op/min] 3450 op/min
Oil type Kerosene/Light oil

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