Kromschroder Spark electrode rod 34472941

Kromschroder spark electrode rod 34472941 is an ignition electrode designed for use with Kromschroder ZAI pilot burners, including ZAI R, ZAI K, and ZAI TN models. It is made of heat-resistant alloy (Kanthal A1) and features high heat resistance, making it suitable for direct spark ignition in the flame zone. The electrode connects via a 4 mm diameter plug and operates with 5-20 kV ignition transformers. It is resistant to soot and is intended for use in industrial gas burner systems.

When selecting a replacement spark electrode rod of this kind, ensure the rod bend, overall length, insulator diameter, and fixing arrangement match the original part. The electrode must be compatible with the burner's combustion head or pilot burner geometry. Check the spark gap (distance from the electrode tip to the burner body or ground electrode) and set it to the manufacturer's specified value. The connection type, typically a 4 mm plug, must also match the ignition transformer.

Typical failure modes for spark electrode rods include erosion or melting of the tip, cracking of the ceramic insulator, and accumulation of soot or carbon that bridges the spark path. These issues can lead to a gradual increase in the spark gap, weakening ignition or causing intermittent sparking. Equipment may exhibit ignition failure, delayed ignition, or emergency shutdowns due to unreliable flame detection.