Description
The Bell & Gossett 105089 (Model PD35S) is a heavy-duty, three-piece oil-lubricated circulator pump engineered for dependable performance in hydronic heating and cooling systems. Built with a durable cast iron construction, this pump is designed to handle the demands of commercial and residential hydronic applications where long service life and reliable flow are essential.
Motor & Electrical Specifications
- Motor Output: 1/2 HP
- Voltage: 115Vac / 230Vac (dual voltage)
- Phase: Single Phase
Construction & Design
- Three-piece pump assembly for easy in-line servicing and maintenance
- Cast iron pump body for strength and corrosion resistance in hydronic systems
- Oil-lubricated bearing design for smooth, quiet operation and extended service life
- Compatible with 3″ flanges for straightforward installation into existing piping systems
Key Benefits
- Dual voltage capability (115V / 230V) provides installation flexibility
- Oil-lubricated design reduces wear and extends pump longevity
- Three-piece construction simplifies maintenance without removing the pump from the line
- Cast iron body withstands the pressures and temperatures of hydronic heating loops
- Trusted Bell & Gossett engineering — a proven name in hydronic system components
Applications
- Hydronic heating systems
- Hot water circulation in commercial and residential boiler systems
- Closed-loop hydronic cooling and heating circuits
The Bell & Gossett PD35S is the reliable choice for contractors and engineers who demand proven performance in hydronic circulation. Its robust cast iron construction, oil-lubricated bearings, and dual-voltage motor make it a versatile and long-lasting solution for a wide range of system configurations.







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