When selecting a burner fuel pump, it is crucial to match the pump to the fuel type, flow rate, pressure, and piping system. Prioritize the following four key parameters:
1. Fuel Type: Determine whether light oil (diesel) or heavy oil is being used. Pumps for light oil are typically gear pumps; however, due to the high viscosity of heavy oil, you must select a pump equipped with a preheating function or one specifically designed for high-viscosity media.
2. Flow Rate (Displacement): The flow rate must be equal to or greater than the sum of the burner's maximum nozzle output and the return flow. It is generally recommended to select a model with a rated flow rate 15% to 20% higher than the actual maximum demand; however, selecting an excessively large pump without justification can lead to pressure fluctuations in the piping.
3. Operating Pressure: Select the pump based on the burner's atomization requirements (e.g., some light oil burners require approximately 10–12 bar). Ensure the pump's maximum output pressure meets these requirements while providing a sufficient safety margin.
4. Piping System and Suction Lift: For single-pipe or dual-pipe systems, verify the pump's self-priming lift capability and whether it includes a built-in bypass valve. For instance, the vacuum suction requirements for the pump differ significantly depending on whether the fuel tank is elevated or buried underground.
When selecting a burner fuel pump, it is crucial to match the pump to the fuel type, flow rate, pressure, and piping system. Prioritize the following four key parameters:
1. Fuel Type: Determine whether light oil (diesel) or heavy oil is being used. Pumps for light oil are typically gear pumps; however, due to the high viscosity of heavy oil, you must select a pump equipped with a preheating function or one specifically designed for high-viscosity media.
2. Flow Rate (Displacement): The flow rate must be equal to or greater than the sum of the burner's maximum nozzle output and the return flow. It is generally recommended to select a model with a rated flow rate 15% to 20% higher than the actual maximum demand; however, selecting an excessively large pump without justification can lead to pressure fluctuations in the piping.
3. Operating Pressure: Select the pump based on the burner's atomization requirements (e.g., some light oil burners require approximately 10–12 bar). Ensure the pump's maximum output pressure meets these requirements while providing a sufficient safety margin.
4. Piping System and Suction Lift: For single-pipe or dual-pipe systems, verify the pump's self-priming lift capability and whether it includes a built-in bypass valve. For instance, the vacuum suction requirements for the pump differ significantly depending on whether the fuel tank is elevated or buried underground.