Description
The Grundfos 95906639 (UPS 43-100 SF) is a Circulator Pump — Three Speed. Three-speed circulator for heating, air-conditioning, and domestic hot water recirculation. Nominal performance: 32.5US gpm at 22.33ft. Rated 208V, 1-Phase, 60 Hz. Applications include Residential hot water recirculation.
Genuine Grundfos Part
OEM component engineered and manufactured to Grundfos specifications. Maintains pump performance and warranty coverage.
Full Traceability
Genuine Grundfos parts carry manufacturer traceability from production through delivery. No counterfeit risk.
Authorized Source
PumpStop is an authorized Grundfos distributor. All parts are genuine — not aftermarket, not surplus.
Confirm Compatibility
Always verify part number against your pump model number and serial number before ordering. Contact PumpStop for parts identification assistance.
Technical Support Available
PumpStop technical team can identify correct parts from pump nameplate data, serial number, or model code. Call (781) 281-8905 or chat.
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| Model Number | 95906639 |
| Product Series | UPS |
| Series Description | Circulator Pump — Three Speed |
| Voltage | 208V |
| Phase | 1-Phase |
| Frequency | 60 Hz |
| Motor Protection | Contact |
| Insulation Class | H |
| Nominal Flow | 32.5US gpm |
| Nominal Head | 22.33ft |
| Max Operating Pressure | 145.04psi |
| Max Fluid Temperature | 230°F |
| Max Ambient Temperature | 104°F |
| Nominal Pipe Bore | 2-BOLT FLANGE |
| Pipe Pressure Rating | PN 10 |
| Pipe Standard | 2-BOLT FLANGE |
| Impeller Material | Composite |
| Housing Material | Stainless steel |
| Approvals / Certifications | CETL, NSF |
| Electrical | Verify supply voltage, phase, and frequency match nameplate before installation: 208V, 1-Phase, 60 Hz. |
| Temperature limits | Do not exceed max fluid temperature 230°F or max ambient temperature 104°F. Exceeding limits damages seals and motor insulation. |
| Dry running | Do not run dry. UPS pumps use the pumped fluid to lubricate the shaft seal. Dry running destroys the seal within seconds. Install dry-run protection on all automatic installations. |
| Maintenance | Refer to the Grundfos Installation and Operating Manual (IOM) for correct installation, commissioning, and maintenance. Contact PumpStop for documentation. |
- Approvals
- CETL
- Built-in motor protection
- CONTACT
- Capacitor size - run
- 10 µF/400 V
- Connection
- PN 10
- Current in speed 1
- 1.4 A
- Current in speed 2
- 1.6 A
- Current in speed 3
- 1.7 A
- Density
- 61.35 lb/ft³
- Frequency
- 60 Hz
- Gross weight
- 16.3 lb
- Housing
- Stainless steel
- Impeller
- Composite
- Insulation
- H
- Insulation class (IEC 85)
- H
- Length
- 8 9/16 in
- Liquid max temp
- 230°F
- Liquid temperature range
- 35.6 .. 230 °F
- Max flow
- 65 US gpm
- Max. power input
- 370 W
- Maximum ambient temperature
- 104 °F
- Maximum head
- 30.84 ft
- Maximum operating pressure
- 145.04 psi
- n rpm
- H
- Number of poles
- 2
- Phase
- 1
- Pipe connection
- 2-BOLT FLANGE
- Power input in speed 2
- 335 W
- Pressure rating for connection
- PN 10
- Pump housing
- Stainless steel
- Pumped liquid
- Water
- Rated flow
- 32.5 US gpm
- Rated head
- 22.33 ft
- Rated voltage
- 1 x 208 V
- Selected liquid temperature
- 140 °F
- Terminal box position
- 9H
- Thermal protec
- internal
- Type of connection
- OVAL
Dimensional Drawing
Wiring Diagram