The Armstrong Fluid Technology 116491-136A (Model H65BF) is a 1 HP commercial-grade circulator pump engineered for dependable performance in hydronic heating and cooling systems. Built to operate on 208-230/460 VAC three-phase power, this pump combines a heavy-duty cast iron body with a corrosion-resistant non-ferrous impeller — delivering consistent fluid movement and long-term reliability in demanding closed-loop HVAC environments.
The maintenance-free bearing design requires zero lubrication, significantly reducing scheduled service intervals and minimizing costly operational downtime. With 1-1/2″ flanged connections for straightforward integration into existing piping systems, the H65BF is a proven solution for contractors and facility managers who need a pump they can install and trust.
Key Features
- 1 HP motor sized for medium-duty commercial and industrial hydronic circulation
- 208-230/460 VAC, three-phase electrical configuration for broad compatibility
- Cast iron body engineered for strength and longevity in closed-loop HVAC systems
- Non-ferrous impeller provides superior corrosion resistance and extended service life
- Maintenance-free, lubrication-free bearings reduce service requirements and downtime
- 1-1/2″ flanged piping connections for easy, secure installation
- Genuine OEM Armstrong Fluid Technology replacement — Model H65BF
