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This valve bonnet seal is typically utilized with cast iron body materials and is rated for low-temperature applications up to 450°F (232°C)
Using a switch with a higher trip point can result in heat exchanger damage
Replacing worn or clogged boiler orifices restores the gas manifold pressure to manufacturer specifications
which handles high-velocity airflow even during fan-on conditions
Industrial Construction: Durable brass 7/16" hex body resists corrosion and simplifies installation using standard service tools
Lochinvar & A.O. Smith 100208091 Gasket Kit This valve bonnet seal isThe Lochinvar & A. O. Smith 100208091 Flame Sensor Gasket Kit is a critical OEM replacement part engineered for high efficiency combustion system maintenance. This kit is designed to provide a high temperature seal for the pilot and burner assembly across a broad range of condensing boilers and commercial water heaters. As a direct replacement for legacy part numbers GKT2450 and GKT2450K, it ensures proper atmospheric isolation, preventing the
