Description
The Grundfos 97661076 (CR 45-7-2 H-G20-A-E-HQQE) is a Vertical Multistage Centrifugal Pump. Cast iron head and base, stainless steel wetted parts. Used in water supply, pressure boosting, HVAC, and industrial liquid transfer. Nominal performance: 231US gpm at 612.9ft. Rated 230/460V, 3-Phase, 60 Hz.
Vertical Multistage Design
Multiple stages in series deliver high head at compact footprint. CR handles up to 60 bar and flow ranges from 0.5 to 900 m³/h across the series range.
Stainless Steel Wetted Parts
All parts in contact with the pumped fluid are stainless steel — impeller, shaft, chamber. Cast iron is used only for the head and base which never contact the fluid.
QuickTight Connection System
No special tools needed for coupling. Integrated coupling design reduces installation and service time.
Wide Configuration Range
Available in 60+ frame sizes and 16 impeller variants. CR can be configured for almost any pressure/flow combination in commercial and industrial water systems.
Authorized Grundfos Distributor
PumpStop supplies genuine Grundfos CR pumps with full manufacturer warranty and factory-trained technical support.
Contact PumpStop for Sizing
The CR family covers a wide operating range. Contact PumpStop to confirm the correct model, voltage, and frequency for your system.
| Model Number | 97661076 |
| Product Series | CR |
| Series Description | Vertical Multistage Centrifugal Pump |
| Power | 50HP |
| Voltage | 230/460V |
| Phase | 3-Phase |
| Frequency | 60 Hz |
| Motor Speed | 3540rpm |
| Pump Speed | 3550rpm |
| Full Load Current | 112/56A |
| Motor Type | BALDOR |
| Motor Efficiency Class | NEMA Premium / IE3 60Hz |
| Insulation Class | F |
| Protection Class (IP) | TEFC |
| Nominal Flow | 231US gpm |
| Nominal Head | 612.9ft |
| Max Operating Pressure | 435.11psi |
| Max Fluid Temperature | 248°F |
| Max Ambient Temperature | 104°F |
| Inlet Connection | 3inch |
| Outlet Connection | 1 1/2inch |
| Pipe Pressure Rating | PN 40 |
| Impeller Material | Stainless steel |
| Housing Material | Cast iron |
| Shaft Seal | HQQE |
| Electrical | Verify supply voltage, phase, and frequency match nameplate before installation: 230/460V, 3-Phase, 60 Hz. |
| Temperature limits | Do not exceed max fluid temperature 248°F or max ambient temperature 104°F. Exceeding limits damages seals and motor insulation. |
| Dry running | Do not run dry. CR 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 on nameplate
- CURUS,NSF/ANSI 61
- Bearing 1
- Graflon
- Built-in motor protection
- NONE
- Code for rubber
- E
- Code for shaft seal
- HQQE
- Connect code
- G20
- Connection
- PN 40
- Cooling
- TEFC
- Curve tolerance
- ISO9906:2012 3B
- Enclosure class (IEC 34-5)
- IP54
- Flange rating inlet
- 300 lb
- Flange size for motor
- 324TC
- Frequency
- 60 Hz
- Frequency converter
- NONE
- Gross weight
- 883.0 lb
- IE Eff. Class
- NEMA Premium / IE3 60Hz
- IE efficiency
- Product name:CR 45-7-2 H-G20-A-E-HQQE
- IE Efficiency class
- NEMA Premium / IE3 60Hz
- Impeller
- Stainless steel
- Impellers
- 2
- Insulation
- F
- Insulation class (IEC 85)
- F
- IP Class
- IP54
- Liquid max temp
- 248°F
- Liquid temperature range
- -22 .. 248 °F
- Low NPSH
- N
- Material code
- A
- Maximum ambient temperature
- 104 °F
- Maximum head
- 768.1 ft
- Maximum operating pressure
- 435.11 psi
- Model
- B
- Motor
- 324TC
- Motor standard
- NEMA
- Motor type
- BALDOR
- n rpm
- F
- Net weight
- 687.0 lb
- Number of poles
- 2
- Number of reduced-diameter impellers
- 2
- P2 kW
- 50 HP
- Phase
- 3
- Power (P2) required by pump
- 50 HP
- Pressure rating for connection
- PN 40
- Pressure sensor
- N
- Pump
- 50 HP
- Pump version
- H
- Rated current
- 112/56 A
- Rated flow
- 231 US gpm
- Rated head
- 612.9 ft
- Rated power - P2
- 50 HP
- Rated speed
- 3540 rpm
- Rated voltage
- 3 x 230/460 V
- Rubber
- E
- Sales region
- USA
- Service factor
- 1.15
- Shaft
- Product name:CR 45-7-2 H-G20-A-E-HQQE
- Shaft seal
- HQQE
- Stages
- 7
- Standard
- NEMA
- Support bearing
- Graflon
- Type
- BALDOR
- Version
- H
Dimensional Drawing
Wiring Diagram
GRUNDFOS CR-H (Product brochure)
OPTIMIZED INDUSTRIAL SOLUTIONS (Product brochure)
CR-H, CRN-H (Installation and operating instructions)
CR-H, CRN-H (Installation and operating instructions)
CR-H, CRN-H, CRE-H, CRNE-H (Data booklet)
CR1-H (Industrial Service Manual)
CR3-H (Industrial Service Manual)
CR5-H (Industrial Service Manual)