McDonnell & Miller 312100 Replacement Gasket

The McDonnell & Miller 312100 Replacement Gasket (Model 27T-13) is a critical sealing component engineered specifically for the 25A Series make-up water feeders. For veteran service contractors, maintaining the integrity of the float chamber is paramount for system uptime. This OEM gasket installs between the arm assembly housing and the float housing head, ensuring a precision fit that eliminates bypass leaks and prevents erratic feeder behavior in condensate receiver tanks. In heavy-duty commercial boiler environments, the 27T-13 model offers high thermal resistance and mechanical stability, crucial for managing the proportional feed action that 25A controls are known for. By utilizing the 312100 head gasket during routine maintenance or head mechanism swaps (such as the 25A-HD), you ensure a pressure-tight seal that meets the original manufacturer's specifications for water supply pressures up to 100 psi. Avoid the risk of using generic gaskets; use this McDonnell & Miller replacement part to optimize the performance and safety of your boiler receiver tank setup.

• Precise 25A Compatibility: Specifically designed to fit the interface between the arm assembly and float housing head on all Series 25A units.
• Superior Sealing Performance: Eliminates the risk of external leaks and ensures consistent pressure regulation within the float chamber.
• Industrial-Grade Durability: Constructed with high-quality materials to withstand the temperature fluctuations typical in HVACR receiver tanks.
• Simplified Field Service: Exact dimensions allow for a rapid, "drop-in" fit during service calls, reducing labor time.

Where is the 27T-13 gasket installed?
This gasket is located between the arm assembly housing and the float housing head on McDonnell & Miller 25A controls.

Is the 312100 gasket compatible with other M&M series?
No, the 312100 is specifically sized and engineered for the 25A Series making it a dedicated replacement for the 27T-13 model gasket.

Should I replace the gasket every time I inspect the float mechanism?
Yes, technicians recommend installing a new gasket whenever the head assembly is removed to ensure a positive seal and prevent unexpected system downtime.

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.