Bell & Gossett B615S Series 60 Circulating Pump

B&G 172775LF Series 60 Model B615S Pump

The Bell & Gossett 172775LF (Series 60, Model B615S) is a premium All-Bronze (B), Lead-Free centrifugal pump engineered to facilitate safe and efficient fluid movement in large commercial potable water systems. Its all-bronze construction is specifically calibrated to neutralize the oxidative effects of high-oxygen domestic water, preventing the internal pitting and scaling that typically compromise standard pumps. By utilizing the legendary three-piece architecture, this unit facilitates ease of maintenance while maintaining extreme structural integrity, ensuring that high-demand hot water recirculation loops receive consistent pressure delivery without the risk of lead contamination.

Driven by a high-torque Single Phase (S) motor, the 172775LF executes superior rotational stability via an independent oil-lubricated bearing frame. The drive assembly is physically isolated from the pump volute to neutralize heat transfer, protecting internal electrical components from thermal stress. By leveraging a precision-ground shaft and a flexible coupling, this configuration eliminates mechanical vibration and stabilizes rotational frequency, providing an exceptionally quiet and reliable solution for mission-critical commercial DHW service.

Key Features of B&G 172775LF B615S

• All-Bronze Lead-Free construction for ultimate corrosion resistance
• Quiet Single Phase motor optimized for commercial building comfort
• Practical 3-piece design facilitates quick in-line maintenance
• Superior non-ferrous impeller optimizes hydraulic flow
• Durable bronze body resists mineral scaling and oxidative stress
• Oil-lubricated bearing frame ensures near-silent operation
• Versatile application for large building potable water recirculation