Bell & Gossett 105090 PD35S BI Series Centrifugal Pump 1/2HP

B&G 105090 PD35S BI Bronze Impeller Pump

The Bell & Gossett 105090 (PD35S BI) is a specialized three-piece sirkulator featuring a Bronze Impeller (BI) to facilitate enhanced corrosion resistance in aggressive hydronic environments. The integration of a non-ferrous impeller into the robust cast iron volute stabilizes fluid velocity and maintains laminar flow, providing superior durability against mineral scaling and oxidative pitting. This mechanical configuration facilitates consistent head pressure and maintains structural stability, ensuring that commercial systems with high vertical lift receive long-term hydraulic reliability.

Powered by a 1/2 HP Single Phase motor, the PD35S BI executes superior power delivery via the legendary B&G oil-lubricated bearing frame. The drive assembly is engineered to sustain vacuum-tight integrity, utilizing a mechanical seal to protect the bearing housing from system fluid. By leveraging a high-strength shaft and precision-balanced bronze components, this configuration minimizes axial deflection and stabilizes rotational frequency, ensuring maximum uptime in demanding continuous-duty service.

Key Features of B&G 105090 PD35S BI

• Efficient 1/2 HP Single Phase industrial motor
• Durable Bronze Impeller resists corrosion and erosion
• Oil-lubricated bearing frame for quiet operation
• Superior mechanical seal prevents system fluid loss
• High flow capacity for commercial heating and cooling
• Practical 3-piece architecture for easy overhaul
• Versatile service for high-resistance hydronic loops