Danfoss BFPM 52 Oil Pump
Datasheet
Description
The BFPM product range includes Danfoss oil pumps equipped with an efficient permanent magnet motor. The electronic BFPM control unit must be used for controlling BFPM motor pumps (see separate datasheet for the electronic BFPM control unit). The BFPM 52 is intended for small oil burners up to 24 l/h.
The image shows the Danfoss BFPM 52 oil pump. It is a compact, black and silver unit with various ports and connections. Visible labels include "Danfoss", "CE", "MADE IN DENMARK", "Bio 10", and "BFPM 21". It features ports labeled P (Pressure), V (Vacuum), S (Suction), R (Return), E (Nozzle Outlet), H (Filter), and connections for NC and NO solenoid valves.
Features and Benefits
- Light heating oil and kerosene
- 1- or 2-strand operation
- 2-phase
- Two integrated pressure regulators
- NC safety shut-off valve
- Cartridge filter
Applications
- Small domestic oil burners up to 24 l/h.
Ordering
Product Codes
| Type | Nozzle Connection/Pressure | Rotation Direction | 1 or 2 Stage(s) | Flow Rate [l/h] | Biofuel blend | Code number |
|---|---|---|---|---|---|---|
| BFPM 52 | L | L | 2 | 24.00 | 10 | 071N4103 |
Identification
Example: BFPM 52 L 3 L
BFPM
- 5: Two stages, two pressure regulators
- 2: Two solenoid valves
- L: Left-hand rotation
- 3: Flow rate 24 l/h
- L: Left-hand nozzle connection
Nozzle performance at 4.3 cSt, 10 bar, 2800 min⁻¹
Accessory Codes
- 071N4208: MOTORKABEL, MP (Motor cable)
- 071N4210: Drucksensorkabel (Pressure sensor cable)
- 071N4052: KOMPLETTE STEUERUNG FÜR BFPM VIESSMANN (Complete control unit for BFPM Viessmann)
- 071N4053: KOMPLETTE STEUERUNG FÜR BFPM (Complete control unit for BFPM)
- 071N4203: SIGNALKABEL (Signal cable)
- 071N4202: STROMKABEL BFPM OHNE FERRIT (Power cable BFPM without ferrite)
- 071N4211: MOTORKABEL BFPM (255MM) (Motor cable BFPM (255MM))
- 071N4206: Drucksensor-SIGNALKABEL MP (Pressure sensor-SIGNAL CABLE MP)
- 071N4055: Steuergerät für BFPM (Control unit for BFPM)
- 071N4054: KOMPLETTE STEUERUNG FÜR BFPM (Complete control unit for BFPM)
Related Product Code: 071N4103
Functions
Operation
Oil is drawn from the suction port (S) through the filter (H) to the gear set, where the pressure is increased. The diaphragm (D) in the pressure regulator for stage 1 (T1) maintains the pressure at a constant value set by the adjustment screw (P1). When voltage is applied to the NC valve, it opens, allowing oil to reach the nozzle outlet (E).
When voltage is applied to the NO valve, it closes, and the pressure regulator (T1) is taken out of operation. The pressure then rises to the value for stage 2, set by the adjustment screw (P2).
In a 2-strand system, excess oil is returned to the return port (R) and back to the tank. In a 1-strand system with a closed return port (R) and the screw (A) removed, the oil is internally recirculated to the gear set (see diagram).
Diagram Description: The schematic shows the oil flow path. Key components include: S (Suction Port), H (Filter), D (Diaphragm), T1/P1 (Stage 1 Pressure Regulator/Setting), NC/NO (Solenoid Valves), E (Nozzle Outlet), T2/P2 (Stage 2 Pressure Regulator/Setting), R (Return Port), A (Screw for recirculation), O (Orifice for venting), P (Manometer Port), V (Vacuummeter Port). The diagram illustrates how oil flows from suction, through the filter and pump, to pressure regulation and then either to the nozzle or back to return/recirculation depending on the system configuration and valve states.
Color Coding: Red = Pressure side, Green = Suction side, Yellow = Return side.
Shutdown Function, Solenoid Valve
When the burner stops, the voltage to the solenoid valves is removed. The NO valve opens, and the NC valve closes, immediately cutting off the oil flow to the nozzle.
Venting
In a 2-strand system, the pump is self-priming; venting occurs via the orifice (O) to the return port (R). In a 1-strand system with a closed return port (R), venting occurs via the nozzle outlet (E) or the manometer port (P).
Note! ? The NC solenoid valve must be replaced after 250,000 switching cycles or after 10 years (verified lifespan).
Product Details
General Data
| Specification | Value |
|---|---|
| Oil Types | Standard heating oil and heating oil according to DIN V 51603-6 EL A Bio-10 (max. 10 % FAME) |
| Viscosity Range (measured at suction port) | (1.3) 1.8 to 12.0 cSt. (mm²/s) |
| Filter Area/Mesh Size | 11 cm² / 200 µm |
| Pressure Range 1) | 7 to 15 bar (Stage 1) 10 to 25 bar (Stage 2) |
| Factory Setting | 10 ±1 bar (Stage 1) 13 ±1 bar (Stage 2) |
| Max. Pressure at Suction and Return Ports | 2 bar |
| Speed | 400 to 3400 min⁻¹ |
| Ambient/Transport Temperature | -20 to +70° C |
| Medium Temperature | 0 to +70° C |
| Power Supply/Drive BFPM Motor 2) | 230 V regulated, from the control unit |
| Coil Power Consumption | 9 W |
| Coil Nominal Voltage | 230 V, 50/60 Hz |
| Coil Protection Type | IP 40 |
1) Max. 12 bar at 1.3 cSt., max. 15 bar at 1.8 cSt.
2) Caution: Do not connect the BFPM motor directly to 230 V/50 Hz!
Capacity
Nozzle Throughput Graph: This graph illustrates the nozzle throughput in liters per hour (l/h) versus pressure in bar. It shows performance curves for oil viscosities of 4.3 cSt and 1.8 cSt at a constant pump speed of 2800 min⁻¹. For example, at 10 bar and 4.3 cSt viscosity, the throughput is approximately 24 l/h.
Power Consumption Graph: This graph shows the power consumption in Watts (W) versus pressure in bar. It is plotted for a pump speed of 2800 o/min. It indicates how the power requirement changes with system pressure.
Dimensions and Weights
| Category | Details |
|---|---|
| Oil Motor Pump Type BFPM 52 | |
| Gross weight | 2.06 kg |
| Net weight | 2.06 kg |
| Volumetric | 1.971 Liters |
Dimension Diagrams Description: The diagrams provide detailed measurements of the BFPM 52 oil motor pump. Key dimensions include an overall width of 103 mm, height of 75 mm, and depth of 56 mm. The mounting holes are 2 x M6 x 14 mm, spaced 60 mm and 75 mm apart. Other indicated dimensions are 42, 50, 52, 27, 65, 45, and 38 mm. The ports are labeled P, V, H, E, R, S, P1, P2, NO, NC.
Connections
- P1: Pressure setting Stage 1
- P2: Pressure setting Stage 2
- S: Suction port G1/4
- R: Return outlet G1/4
- E: Nozzle outlet G1/8
- P: Manometer connection G1/8
- V: Vacuummeter connection G1/8
- H: Filter
Warnings
Warranty
Danfoss assumes no warranty for pumps that have not been used according to the specified technical data, nor for pumps operated with oil containing abrasive particles.
Installation
Installation Diagrams Description: The diagrams illustrate the physical configuration of the pump for different operating modes. They show how the pump can be set up for 2-strand operation (with a screw in place) or 1-strand operation (with the screw removed, enabling internal recirculation). The diagrams also indicate the location for filter replacement (H).
Service
Switching between 1- and 2-strand operation, Filter Replacement (H):
- H: Filter
- A: 2-strand operation, with screw
- 1-strand operation, without screw
Certificates, Declarations, and Approvals
| Certificate/Declaration | Title | Certifying Body | Theme |
|---|---|---|---|
| Export Control Declaration | Oil pumps BFP/BFA/BFM | Danfoss | |
| EU-UK Declaration | Danfoss EU-UK 071NPM.06 | Danfoss | LVD |
| Electrical Safety Certificate | SEMKO SE-S-2101293R3 | Intertek Semko | LVD |
| Manufacturer Declaration | Danfoss MA-UK 071NPM.05 | Danfoss |
Contact Details
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