Bell & Gossett 105098 PD37S 3/4HP Centrifugal Pump

B&G 105098 PD37S BI Bronze Impeller Pump

The Bell & Gossett 105098 (PD37S BI) is a high-capacity three-piece circulator featuring a precision-balanced Bronze Impeller (BI) to facilitate maximum longevity in aggressive commercial hydronic environments. Its robust cast iron volute is designed to stabilize internal pressure at high flow rates, while the non-ferrous impeller neutralizes the oxidative pitting common in large-scale heating loops. By prioritizing a high-volume internal architecture, this unit facilitates consistent thermal distribution and maintains structural stability, ensuring that primary HVAC networks receive reliable volume delivery under sustained 3/4 HP operational loads.

Powered by a 3/4 HP Single Phase motor, the PD37S BI executes superior torque delivery via the legendary B&G oil-lubricated bearing frame. The three-piece design isolates the motor from the pump volute to neutralize heat transfer, protecting the motor windings from thermal degradation. By leveraging industrial-grade bearings and a precision-ground shaft, this configuration minimizes mechanical vibration and stabilizes rotational frequency, providing extreme reliability for continuous-duty commercial circulation service where quiet operation is paramount.

Key Features of B&G 105098 PD37S BI

• Powerful 3/4 HP Single Phase motor for high-volume demand
• Durable Bronze Impeller resists corrosion and scaling
• Oil-lubricated bearing frame ensures near-silent service
• Superior spring coupling prevents motor-to-shaft stress
• Cast iron body withstands 125 PSI pressure
• Practical three-piece design facilitates in-line repair
• Versatile application for large-scale hydronic loops