Lochinvar & A.O. Smith 100327322 Body Gasket

As a seasoned technician, you know that a localized failure in the pump volute can compromise the entire hydronic loop. The Lochinvar & A.O. Smith 100327322 Body Gasket is the critical high-temperature seal required for maintaining the hydraulic integrity of your circulating pumps. Specifically engineered as the direct replacement for ARM1063, this volute gasket is a standard component for Lochinvar Power-Fin (PF) models, Copper-Fin (CP/CW) units, and Efficiency Pac (EP) series. When performing a boiler pump repair, replacing the old, compressed elastomer is mandatory to prevent weeping or catastrophic leaks under system pressure.

This OEM Lochinvar gasket is designed to withstand the rigorous thermal cycling inherent in commercial heating applications. Whether you are servicing an ARM3024PAB or a PUM3013 pump, using a genuine 100327322 body gasket ensures the 1/6 HP to 2/5 HP motor assemblies maintain a leak-proof interface with the volute housing. Don't risk a callback by reusing a hard or glazed seal; ensure a professional-grade repair with a fresh volute discharge gasket that meets original factory tolerances for HVAC pump maintenance.

• Direct OEM Compatibility: Serves as the precise 100327322 replacement for ARM1063, ensuring perfect alignment with the pump volute.
• High-Temperature Resilience: Manufactured from technical-grade materials capable of handling high-duty cycle heating applications without degrading.
• Broad Application Support: Verified for use in Lochinvar Power-Fin PF 501-1302 models and various Armor and Knight series secondary pumps.
• Hydraulic Seal Integrity: Specifically designed to flow into the housing's imperfections, preventing pressure loss in commercial hydronic systems.

Is the 100327322 compatible with all Lochinvar pumps?
This gasket is specifically designed for the volute casing of mid-range circulating pumps. It is the designated replacement for part ARM1063. Always cross-reference your pump's model number, such as ARM3022 or PUM3006, to ensure a correct fit.

Why is the gasket failing prematurely in my boiler loop?
Premature failure is often caused by chemical bypass during system cleaning or excessive mineral buildup causing the volute to overheat. Ensure the mating surfaces are cleaned of all old material before installing the 100327322 gasket.

Does this part include the mounting bolts?
No, this is the body gasket only. If your bolts are corroded or the flange is compromised, you should source a full pump bolt and gasket kit separately to ensure a secure high-pressure seal.

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.