Grundfos UPS 32-80 F Wet Rotor Circulator Pump
The Grundfos 96402708 (Model UPS 32-80 F) is a high-performance, three-speed wet rotor circulator pump engineered for reliable hydronic heating and cooling applications. Featuring a durable cast iron housing paired with a corrosion-resistant stainless steel impeller, this pump delivers long-lasting performance in demanding residential and light commercial systems.
Key Features
- Model: UPS 32-80 F
- Motor Output: 1/2 HP
- Voltage: 115V AC, Single Phase
- Speed: 3-Speed operation for flexible flow control
- Motor Speed: 3,450 RPM
- Housing Material: Cast Iron for rugged durability
- Impeller Material: Stainless Steel for corrosion resistance
- Design: Wet rotor — no external shaft seal required, quiet and maintenance-friendly
- Connections: 1-1/4″ non-ANSI 2-bolt flange suction and discharge
Wet Rotor Advantage
The wet rotor design eliminates the need for external shaft seals and separate lubrication, as the circulated fluid itself lubricates and cools the motor. This results in whisper-quiet operation, reduced maintenance requirements, and extended service life — ideal for closed-loop hydronic heating systems, radiant floor heating, and chilled water distribution.
Three-Speed Flexibility
With three selectable speed settings, the UPS 32-80 F allows installers and technicians to fine-tune system flow rates to match specific load requirements, improving energy efficiency and system comfort across varying demand conditions.
Robust Construction
- Cast iron pump body withstands the rigors of continuous hydronic system operation
- Stainless steel impeller resists corrosion and scale buildup
- 1-1/4″ non-ANSI 2-bolt flange connections for straightforward installation and serviceability
- Compact, in-line design simplifies piping integration
Typical Applications
- Residential and light commercial hydronic heating systems
- Radiant floor and panel heating loops
- Domestic hot water recirculation
- Chilled water and cooling coil circuits
- Boiler and heat exchanger circulation
