The Danfoss BFP 20/21 Series Oil Pump is a compact and reliable fuel pump developed for small and medium-capacity oil burners used in industrial and commercial heating systems. It ensures precise fuel delivery and stable combustion performance for efficient burner operation.

The pump uses a precision gear-driven mechanism powered by the burner motor to draw fuel from the oil tank through an integrated filter and deliver it to the burner nozzle at controlled pressure.

The BFP 20 series is designed primarily for one-pipe installations, while the BFP 21 series supports two-pipe systems with return line functionality for improved fuel circulation and deaeration.

Available in sizes 3 and 5, the pump provides different flow capacities suitable for a variety of burner outputs:

• Size 3 → approx. 24 l/h

• Size 5 → approx. 42 l/h

An integrated pressure regulating valve maintains stable nozzle pressure, while the built-in cut-off function ensures immediate fuel shut-off during burner shutdown for improved safety and clean burner operation.

The BFP series is compatible with light oil and kerosene fuels, making it suitable for modern industrial and commercial heating systems.

Key Features

• Single-stage gear-type oil burner pump

• Available in sizes 3 and 5 for different burner capacities

• Integrated pressure regulating valve for stable fuel delivery

• Built-in cut-off function for safe burner shutdown

• Supports one-pipe and two-pipe installations

• Integrated filter for contamination protection

• Compact and durable industrial design

• Compatible with light oil and kerosene fuels

Applications

• Industrial oil burners

• Oil-fired boilers

• Commercial heating systems

• Domestic heating burners

• Hot air generators

• Process heating systems

Why Choose This Pump

• Reliable solution for light oil burner fuel supply systems

• Trusted Danfoss burner pump technology

• Provides stable fuel pressure for efficient combustion

• Available in multiple sizes for different burner outputs

• Compact design with easy installation and long service life

Technical Description

The Danfoss BFP 20/21 Oil Pump operates using a gear set driven directly by the burner motor. The rotating gears create suction that draws fuel from the storage tank through an integrated filter.

The fuel is pressurized and delivered to the nozzle line through an internal pressure regulating system that maintains stable burner pressure for efficient combustion. Excess fuel is internally recirculated or externally returned depending on the installation configuration.

The integrated cut-off mechanism automatically stops fuel flow when the burner shuts down, preventing oil leakage and ensuring safe burner operation.

The pump is optimized for single-stage oil burner systems and delivers reliable performance in industrial and commercial heating applications.

Technical Specifications