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the 55440 disc is ground and lapped to exacting tolerances to ensure a positive shut-off and long-term condensate removal efficiency
functioning as a safety and operational interlock
upgrading to a 50VA unit like the 100208250 is recommended if your system has high current demands
providing the necessary torque for consistent airflow across evaporator or heat exchanger coils
making it suitable for high-efficiency fixtures
Lochinvar & A.O. Smith 100233597 Gasket 323055-751 the 55440 disc is groundThe Lochinvar & A. O. Smith 100233597 Gasket is a critical high temperature seal designed specifically for the flue exhaust system on heavy duty commercial boilers and water heaters. Engineered to withstand intense thermal cycling, this EPDM flue gasket ensures a gas tight seal between the heat exchanger and the venting assembly, preventing hazardous combustion byproducts from escaping into the mechanical room. This component is a direct replacement
