Danfoss Oil burner pump RSA60 070L3350

The Danfoss RSA60 070L3350 is a gear-type oil pump designed for small and medium-sized household burners with a maximum fuel consumption of 255 liters per hour. It operates on light fuel and kerosene, supporting both single-tube and double-tube systems with one pressure level. The pump features a built-in annular filter, a pressure regulator with a locking device, and a factory-set pressure of 7 bar. It can function as a transport or feed pump, with a pressure range of 5500–21000 mbar and a shaft rotation speed of 1400–3450 min. The pump is suitable for ambient temperatures from -20 to 70 °C and fuel temperatures from -10 to 70 °C.

When selecting a replacement oil pump of this type, ensure the shaft standard (e.g., EN225), rotation speed range, and pressure range match the burner's requirements. Verify the system type (single-tube or double-tube) and the fuel type compatibility. The pump's mounting dimensions and shaft coupling must align with the existing burner assembly. Compare the factory-set pressure and the maximum pressure in the suction/return line to the system's specifications before installation.

Common failures in oil pumps of this kind include loss of pressure due to worn gears or a clogged filter, leading to burner ignition issues or unstable flame. A seized shaft or excessive starting torque can cause the motor to overheat or trip. Leaks may occur at seals, resulting in fuel puddles or a drop in system pressure. Check the filter for debris, verify the shaft rotates freely, and inspect for fuel leaks around the pump body.