174031MF-043 ARMSTRONG 1/12 hp 115V Circulator Pump Lead-Free Bronze Model S-25

174031MF-043 ARMSTRONG 1/12 hp 115V Circulator Pump Lead-Free Bronze Model S-25

The Armstrong 174031MF-043 is a lead-free bronze in-line circulator pump designed for hydronic heating, cooling, and domestic water systems. It serves as a direct replacement for Bell & Gossett Model 106197LF and Armstrong previous model 174031-043, offering reliable performance in multi-stage zoning and general industrial applications.

Key Specifications

• Horsepower: 1/12 HP
• RPM: 1725
• Voltage: 115 V, 60 Hz
• Amperage: 2.5 Amps
• Bearings: Permanently lubricated ball bearings

Product Features & Fitment

This pump features a maintenance-free design with permanently lubricated ball bearings, eliminating the need for oiling. The pump body, impeller, and shaft are constructed from lead-free bronze and stainless steel for durability and compliance with Safe Drinking Water Act requirements. It includes a hardware kit with mounting bolts and two rubber flange gaskets; however, the threaded flange is sold separately. For optimal operation, the circulator must be mounted with the motor and pump in a horizontal position. The standard three-piece cast iron design and industry-accepted flange configuration allow for quick pump replacements without pipe modifications.

Cross Reference

• the following models
• Bell & Gossett Pump Model 106197LF, Series 100 Model 100 BNFI
• Armstrong Previous Models 174031-043
• Grainger 5JPD9
• Replacement Parts
• 812961-041 • 2-3/4" Bronze Impeller
• 806026-001 • Spring Coupler
• CP-R1350 • New 1/12HP Electric Motor

Warranty

1 Year Manufacturer Warranty