McDonnell & Miller 354370 Cover Gasket

The McDonnell & Miller 354370 Cover Gasket (Model GSKT-RS-1) is a critical sealing component designed specifically for the RS-1-BR-1 Series remote sensors. Engineering for high-pressure steam and hot water applications, this 4-hole cover gasket ensures a leak-proof seal for liquid level control systems. In high-performance boiler environments, maintaining the integrity of the remote sensor housing is essential to prevent pressure loss and ensure accurate probe readings. This OEM replacement part is manufactured to withstand the rigorous thermal cycling common in commercial and industrial boiler operations, providing a precise fit that matches the original factory specifications for the RS-1-BR-1 remote sensor assembly.

For contractors performing boiler gasket replacement, using the McDonnell & Miller GSKT-RS-1 is necessary to maintain system safety and operational efficiency. The gasket is compatible with Series RS architectures, often found in Cleaver-Brooks and other major boiler configurations. Its composition is optimized for HVACR environments where reliability under stress is non-negotiable. When replacing 354370 gaskets, professionals should ensure all mating surfaces are clean and free of debris to guarantee a professional-grade seal that prevents nuisance shutdowns and protects the remote sensor electronics from moisture ingress.

Key Benefits:

• Precision Compatibility: Specifically engineered for the McDonnell & Miller RS-1-BR-1 Series to ensure a perfect 4-hole alignment.
• High-Pressure Durability: Designed to maintain a secure seal in demanding liquid level control applications within steam and hydronic systems.
• OEM Standards: Genuine 354370 replacement part eliminates the risks associated with generic seals, such as improper fit or premature failure.
• Enhanced System Reliability: Prevents external leaks and protects sensitive internal sensor components from environmental degradation.

Common Questions:

Is this gasket compatible with the RS-1-LP series?
No, the GSKT-RS-1 is specifically for the RS-1-BR-1 model. The LP series typically requires the GSKT-RS-2 gasket. Always verify your specific sensor model before installation.

Does this kit include the 4 mounting bolts?
This part number refers to the GSKT-RS-1 cover gasket only. Mounting hardware should be inspected and reused if in good condition, or sourced separately according to the McDonnell & Miller service manual.

What is the primary cause of gasket failure in RS series sensors?
Failures are usually triggered by excessive thermal cycling or improper torqueing of the cover bolts. Using a genuine McDonnell & Miller 354370 during routine maintenance helps mitigate these risks.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.