hp-Technik BIK-5209-FL-So-Ölmotorpumpe

The hp-Technik BIK 5209-FL-So oil motor pump belongs to the category of oil pump stations. Parts of this type draw fuel oil from the storage tank and deliver it under pressure to the burner nozzle, where the pressure determines the firing rate. An integral solenoid valve provides the sharp cut‑off that the burner control requires for a clean flame shutdown. Such pumps are designed for continuous operation in the fuel supply train of an oil burner. When selecting a replacement pump of this class, the heating engineer must verify several parameters. Rotation direction must match the burner motor shaft; the system may be configured for single‑pipe or two‑pipe operation, depending on whether a return line is present. The pump’s capacity (flow rate) and pressure range must suit the burner’s maximum output. The shaft and mounting pattern, as well as the connection thread sizes, need to be compatible with the existing coupling and pipework. Some installations include a preheater for heavier fuel oils to improve atomisation; integral filters protect both the pump and the nozzle from contaminants. Common failure modes that lead to replacement include worn gears that reduce pressure, a weak or inconsistent pressure regulator, a leaking shaft seal, or a failed solenoid coil that prevents the burner from cutting off fuel sharply. When fitting a replacement, ensure the solenoid coil resistance matches the burner control’s voltage and check the shaft seal condition during installation.