Description
Overview
The Bell & Gossett 104309 is a high-efficiency, large wet rotor circulator pump engineered for demanding hydronic heating and cooling applications. Powered by an Electronically Commutated Motor (ECM), this pump delivers exceptional energy savings and precise flow control compared to traditional PSC motor-driven circulators. Its robust cast iron body ensures long-lasting durability in commercial and residential hydronic systems.
Key Features
- Electronically Commutated Motor (ECM) for superior energy efficiency and variable-speed performance
- Cast iron body construction for durability and long service life
- High-efficiency large wet rotor design — motor windings are cooled and lubricated by the system fluid, eliminating the need for external bearings or seals
- Single-phase operation for straightforward electrical integration
- Wide power range (45–825 Watts) to match varying system load demands
- Maximum pressure rating of 175 PSI for use in high-pressure hydronic systems
Electrical Specifications
- Voltage: 208–230V AC
- Phase: Single Phase
- Horsepower: 1 HP
- Amperage Range: 0.5–3.5 Amps
- Wattage Range: 45–825 Watts
Performance Specifications
- Maximum Pressure Rating: 175 PSI
- Body Material: Cast Iron
- Motor Type: Electronically Commutated Motor (ECM)
- Rotor Type: Large Wet Rotor
Applications
The Bell & Gossett 104309 is ideal for a wide range of hydronic system applications, including:
- Hot water heating and chilled water cooling systems
- Commercial and light industrial hydronic loops
- Radiant floor heating distribution
- Primary/secondary and variable-flow hydronic systems
- High-pressure closed-loop piping systems
Why Choose the Bell & Gossett 104309?
Bell & Gossett is a trusted name in hydronic system technology, and the 104309 exemplifies their commitment to efficiency and reliability. The ECM technology automatically adjusts motor speed to match system demand, reducing energy consumption and operating costs over the life of the pump. The wet rotor design eliminates mechanical seals and external bearings, minimizing maintenance requirements and improving overall system reliability.
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