Armstrong Fluid Technology 106285MF-132 Pump

The Armstrong Fluid Technology 106285MF-132 is a high-performance Series S-57 BF In-Line Circulator Pump designed for demanding hydronic heating and cooling systems. Featuring a powerful 3/4 HP single-phase motor with built-in thermal overload protection, this industrial-grade pump operates efficiently at 115/230Vac. Its robust cast iron body and non-ferrous impeller ensure long-term durability in non-potable water applications. As a direct replacement for 106285-132, this model incorporates a permanently lubricated maintenance-free bearing module, eliminating the need for manual oiling and reducing operational downtime. The three-piece modular design allows for a back pull-out service, enabling the radially-split body to remain in-line during maintenance. Engineered for precision, the Armstrong S57BF uses 3-inch flanges and a stainless steel shaft to deliver a maximum flow rate of up to 122 GPM, making it a reliable solution for residential and commercial multi-stage zoning and general industrial circulating services.

• Maintenance-Free Operation: Features permanently lubricated ball bearings and a stainless steel shaft, removing the requirement for periodic lubrication.
• Simplified Serviceability: The radially-split body and three-piece construction allow for rapid component replacement without disconnecting existing piping.
• Enhanced Protection: Integrated thermal overload protection safeguards the 3/4 HP motor against overheating and electrical failure.
• High Flow Performance: Optimized for significant hydronic loads with a non-ferrous impeller and 1800 RPM motor speed.
• Direct OEM Replacement: Seamlessly replaces legacy Armstrong 106285-132 models using standard 3" round flange configurations.

Is the Armstrong 106285MF-132 suitable for potable water systems?

No, this model features a cast iron body specifically designed for closed-loop hydronic heating and cooling. For domestic potable water, a bronze or stainless steel alternative should be used.

What is the difference between this and the older 106285-132 model?

The "MF" designation stands for Maintenance Free. While the older version required regular oiling, the 106285MF-132 utilizes a sealed bearing module that is permanently lubricated.

Are the 3-inch flanges included with the pump?

This unit is designed for use with 3-inch flanges. Standard hardware kits typically include mounting bolts and gaskets, but threaded companion flanges are often sold separately depending on your specific piping needs.

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.

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