Description
The Danfoss BFP 10/11 series oil pumps, available in sizes 3, 5, and 6, are designed for small to medium-sized domestic oil burners operating up to 60 liters per hour (l/h).
Features & Benefits
- Suitable for light oil and kerosene.
- Supports 1 or 2-pipe operation.
- Single-stage operation.
- Integrated pressure regulator.
- Solenoid valve cut-off functionality (featured in BFP 11 models).
- Equipped with a ring filter.
Applications
- Primarily used in small to medium-sized domestic oil burners with capacities up to 60 l/h.
Ordering Information
Product code numbers for various configurations:
| Product Type | Nozzle/pressure outlet | ROTATION | 1 or 2 stage | Capacity [l/h] | Biofuel blend | Code number |
|---|---|---|---|---|---|---|
| BFP 11 | R | R | 1 | 24.00 | 10 | 071N0143 |
| BFP 11 | R | R | 1 | 24.00 | 10 | 071N0145 |
| BFP 11 | R | R | 1 | 24.00 | 10 | 071N1108 |
| BFP 11 | L | L | 1 | 24.00 | 10 | 071N4141 |
| BFP 11 | R | R | 1 | 24.00 | 10 | 071N4143 |
| BFP 11 | R | R | 1 | 24.00 | 10 | 071N7155 |
| BFP 10 | R | R | 1 | 24.00 | 10 | 071N7253 |
Identification Example: BFP 11 L5 L
Key to Identification:
- BFP: Base pump model.
- 1 (ring filter): Indicates a ring filter and pressure adjustment on the side.
- 0: Without solenoid valve.
- 1: With one solenoid valve.
- L: Left hand rotation.
- R: Right hand rotation.
- 3: Capacity 24 l/h.
- 5: Capacity 42 l/h.
- 6: Capacity 60 l/h.
- L: Left hand nozzle outlet.
- R: Right hand nozzle outlet.
Nozzle capacity is specified at 4.3 cSt. viscosity, 10 bar pressure, and 2800 min⁻¹ speed.
Functions
Operation
Oil is drawn from the suction inlet (S) through the filter (H) to the gear set, where pressure is increased. When voltage is applied to the normally closed (NC) valve, it opens and directs oil to the nozzle outlet. The pressure regulator (T), controlled by a diaphragm (D) and adjustment screw (P1), maintains a constant pressure. In 2-pipe systems, excess oil returns to the tank via the return outlet (R). In 1-pipe systems with a plugged return outlet, oil is returned internally via a bypass washer on screw (A).
Diagram shows oil flow path: Green line indicates suction (S) to filter (H) and gear set. Red line indicates pressure from gear set to pressure regulator (T) and nozzle outlet (E). Yellow line indicates return (R). P1 is the pressure adjustment screw, O is a constriction for bleeding.
Cut-off Function (Solenoid Valve - BFP 11)
When the burner stops, the voltage to the NC valve is cut off, immediately stopping oil flow to the nozzle. The BFP 10 model does not have a solenoid valve; a separate cut-off valve is required in the nozzle line for these systems.
Bleeding
For 2-pipe systems, the pump is self-priming, with bleeding occurring via the constriction (O) to the return outlet (R). For 1-pipe systems with a plugged return outlet (R), bleeding is performed through the nozzle outlet (E) or the pressure gauge port (P).
Warranty
Danfoss cannot provide warranty for pumps used outside stated technical data or with oil containing abrasive particles.
Note: The solenoid valve is rated for 250,000 operations or 10 years of use.
Product Details - General Data
| BFP 10/11 | 3 | 5 | 6 | |
|---|---|---|---|---|
| Oil types | Standard fuel gas oil and fuel gas oil acc. to DIN V 51603-6 EL A Bio-10 (max. 10% FAME) | |||
| Viscosity range (measured in suction inlet) | (1.3) 1.8 to 12.0 cSt. (mm²/s) | |||
| Filter area/size | 13 cm²/200 μm | |||
| Pressure range¹⁾ | 7 to 15 bar | 7 to 20 bar | 7 to 20 bar | |
| Factory setting | 10 ± 1 bar | |||
| Max. pressure in suction inlet/return outlet | 2 bar | |||
| Speed | 2400 to 3450 min⁻¹ | 1400 to 3450 min⁻¹ | 1400 to 3450 min⁻¹ | |
| Max. starting torque | 0.10 Nm | 0.12 Nm | 0.14 Nm | |
| Ambient/transport temperature | -20 to +70°C | |||
| Temperature of medium | 0 to +70° C | |||
| Coil power consumption | 9 W | |||
| Rated voltage (other voltages on request) | 230 V, 50/60 Hz | |||
| Coil enclosure | IP 40 | |||
| Shaft/neck | EN225 | |||
¹⁾ Max. 12 bar at 1.3 cSt., max. 15 bar at 1.8 cSt.
Capacity and Performance
Nozzle Capacity [l/h]
Graph showing nozzle capacity in liters per hour (l/h) versus pressure in bar, with curves for different viscosities (4.3 cSt and 1.8 cSt) at 2800 min⁻¹.
The graph illustrates nozzle capacity at various pressures for different fluid viscosities.
Operating Torque [Nm] and Power Consumption [W]
Graph showing operating torque in Newton-meters (Nm) and power consumption in Watts (W) versus pressure in bar, with curves for different viscosities (4.3 cSt and 1.8 cSt) at 2800 min⁻¹.
These graphs detail the torque and power requirements at different operating pressures and viscosities.
Dimensions & Weights
| Weight | Oil Pump Type BFP 10/11 sizes 3, 5 & 6 |
|---|---|
| Gross weight | 1.885 kg |
| Net weight | 1.884 kg |
| Volume | 1.935 Liter |
Diagram shows the physical dimensions of the pump, including port locations and overall size. Key dimensions indicated are approximately 92mm (max length), 65mm (height), and 104mm (width).
Connections
The diagram illustrates a typical L-rotation pump with a solenoid valve. Port designations are:
- P1: Pressure adjustment
- S: Suction inlet (G1/4)
- R: Return outlet (G1/4)
- E: Nozzle outlet (G1/8)
- P: Pressure gauge port (G1/8)
- V: Vacuum gauge port (G1/8)
Note: Shaft rotation (RH for right, LH for left) and the location of the nozzle outlet and other connections are viewed from the shaft end.
Service
Change-over and Filter Replacement
A: 2-pipe operation: Use screw S without a bypass washer.
B: 1-pipe operation: Use screw S with a bypass washer.
H: Filter: Indicates the location of the filter.
Diagrams show the pump configuration for 2-pipe operation (A) and 1-pipe operation (B), highlighting the use of screw S with or without a bypass washer, and the filter (H).
Certificates, Declarations, and Approvals
This section lists available certifications for the BFP 10/11 product type. Individual code numbers may possess some or all of these approvals. Local approvals not listed here may also exist.
| Approval Type | Title | Certification Body | Approval Topic |
|---|---|---|---|
| Manufacturer's Declaration | Danfoss MD 071NP.05 | Danfoss | EU ROHS |
| EU-UK Declaration | Danfoss EU-UK 071NP.05 | Danfoss | LVD |
| Electrical Safety Certificate | DIN CERTCO 5S222 | DIN CERTCO | |
| Electrical Safety Certificate | SEMKO SE-S-2101293R3 | Intertek Semko | |
| Export Control Declaration | Oil pumps BFP/BFA/BFM | Danfoss |
Links to the latest Declaration of Conformity are available, ensuring products conform to directives and standards in force at the time of sale.
Contact and Support
Danfoss provides extensive online support, including:
- The Danfoss Design Center: An advanced digital platform for product selection and information. Learn more at: designcenter.danfoss.com.
- The Danfoss Product Store: A 24/7 online shop for browsing catalogs, checking product details, and making purchases. Visit: store.danfoss.com.
- Danfoss Partner Portal/Product Data Tool: A hub for product documentation, training, marketing assets, and technical support. Access is available 24/7 at: partner.danfoss.com.
- Technical Documentation: Direct access to data sheets, manuals, guides, and more. Search at: documentation.danfoss.com.
- Danfoss Learning: A free online platform offering courses for engineers, installers, and technicians. Find it at: learning.danfoss.com.
- Local Information and Support: Find product availability, news, and local experts via local Danfoss websites: danfoss.com.
Danfoss A/S
Climate Solutions
danfoss.com
Phone: +45 7488 2222
Disclaimer: Information provided is for guidance only and is binding only when explicitly referenced in a quotation or order confirmation. Danfoss is not responsible for errors in material and reserves the right to alter products without prior notice. Trademarks are the property of Danfoss A/S or its group companies.
