Lochinvar 100133603 Bronze Fitted Circulating Pump 1/2HP 1800RPM

The Lochinvar 100133603 is a bronze-fitted cast iron circulating pump designed for reliable performance in hydronic heating systems. This genuine OEM replacement pump features a 1/2 horsepower motor operating at 1800 RPM with dual voltage capability (115/230V) for flexible installation requirements.

Key Features:

• Cast iron body with bronze-fitted construction for durability and corrosion resistance
• 1/2 HP motor with 1800 RPM operating speed
• Dual voltage operation: 115V or 230V, single phase
• 2-1/2 inch flanged connections for secure installation
• Also known as ARM3024PBF, 100170107, TP24PBF, and 113109-843

This circulating pump is engineered specifically for Lochinvar Copper-Fin and Copper-Fin II series boilers (models CHN1260-2070). The bronze-fitted design provides excellent resistance to corrosion while the cast iron body ensures long-lasting structural integrity. The pump's inline circulator design makes it suitable for hydronic heating applications, multi-stage zoning systems, and general hydronic service.

Technical Specifications:

• Motor Power: 1/2 HP
• Speed: 1800 RPM
• Voltage: 115/230V, 1 Phase
• Connection Size: 2-1/2 inch flanges
• Construction: Bronze-fitted cast iron