Électrode Baltur 49368, 3 - 18 - 0920 178 mm

Baltur 49368 electrode, 3-18-0920 178 mm. Catalogue article 156.946.017. Manufacturer codes 49368, 3-18-0920, 156.946.017. This part belongs to the category of ionization and ignition electrodes. Ignition electrodes provide the spark for lighting the burner, while ionization electrodes prove the flame by conducting a small rectified current through it. Both types live directly in the flame zone and are consumable items subject to wear. Such electrodes are selected by overall length, bend angle, insulator diameter, the gap between the electrode tip and the earth point, and the mounting flange pattern. The electrode geometry is shaped to match the combustion head of a specific burner series. Typical failures include an eroded or rounded tip that weakens the spark, cracked ceramic insulation that causes short circuits to earth, soot deposits that impair ionisation signal, and a drifting gap that lengthens ignition time or prevents flame detection. In systems that use a pilot burner, that burner carries a small permanent or intermittent flame that lights the main burner and holds the flame signal throughout operation. When replacing an electrode of this type, check the condition of the ceramic insulator for any hairline cracks before installation. Ensure the mounting surface in the burner is clean and that the sealing gasket (if present) is intact. Do not overtighten the fixing screws as this can crack the ceramic. Verify the electrode gap with a feeler gauge against the burner manufacturer's specification; a gap that is too wide may cause ignition failure, while one too narrow can short out. Also examine the high-voltage lead and the ignition transformer output for damage or corrosion at the terminal. Electrodes are not generally repairable; a worn or damaged unit should be replaced with an equivalent part of the same length and geometry.