Kromschroder Ceramic tube set TSC140B085-300/35-Si-1500 74916387

The Kromschroder ceramic tube set TSC140B085-300/35-Si-1500 (SKU 74916387) is a replacement kit for Kromschroder BIC 140L and BICA 140L gas burners. It includes a silicon carbide ceramic tube with a nominal diameter of 85 mm, a length of 300 mm, and a distance from flange to front edge of 35 mm. The set is designed for high-temperature furnaces up to 1450 °C, with gas exit velocity of 80–150 m/s and turndown ratio of 1:15. It ensures stable combustion with NOx emissions less than 80 mg/kWh. The kit is manufactured in Germany and includes the ceramic tube, sealing cord, screws, and nuts for installation.

Parts of this type are selected by matching the burner model and size, as well as the tube's diameter, length, and head position relative to the furnace flange. Before ordering, verify the nominal diameter, tube length, and distance from flange to front edge against the existing burner specifications. Installation involves mounting the ceramic tube from the furnace lining side, using the provided fasteners and tightening to the recommended torque (up to 30 N·m). Ensure proper alignment with ignition and ionization electrodes if present.

Failure of ceramic tubes of this kind typically manifests as cracks, chips, surface melting, or porosity. Equipment symptoms include unstable combustion, flame lift-off or detachment, popping during ignition, and overheating of the burner housing due to flame contact with metal parts. Regular inspection for visual defects and monitoring of combustion stability are recommended to detect wear.