Description
The Grundfos 99971166 (CR 185-3-3 A-G-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.
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 | 99971166 |
| Product Series | CR |
| Series Description | Vertical Multistage Centrifugal Pump |
| Seal Code | HQQE |
| Seal Description | Cartridge seal — H rubber bellows, QQ SiC/SiC faces, E EPDM O-ring |
| Electrical | Verify supply voltage, phase, and frequency match nameplate before installation. |
| Temperature limits | Do not exceed max fluid temperature per nameplate. 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 for drinking water
- NSF/ANSI 61,NSF/ANSI 372
- Bearing 1
- Graflon
- Code for rubber
- E
- Code for shaft seal
- HQQE
- Connect code
- G
- Connection
- 300 lb
- Curve tolerance
- ISO9906:2012 3B
- Flange size for motor
- 444TSD
- Frequency converter
- NONE
- Gross weight
- 992.0 lb
- Impeller
- Stainless steel
- Impellers
- 3
- Liquid max temp
- 248°F
- Liquid temperature range
- -4 .. 248 °F
- Low NPSH
- N
- Material certified according to
- European standards
- Material code
- A
- Maximum head
- 557.8 ft
- Maximum operating pressure
- 362.59 psi
- Model
- A
- Motor
- 444TSD
- Motor standard
- NEMA
- n rpm
- 3566rpm
- Net weight
- 736.0 lb
- Number of reduced-diameter impellers
- 3
- Power (P2) required by pump
- 125 HP
- Pressure rating for connection
- 300 lb
- Pump
- 125 HP
- Pump version
- A
- Rated flow
- 980 US gpm
- Rated head
- 405.9 ft
- Rubber
- E
- Shaft
- Product name:CR 185-3-3 A-G-A-E-HQQE
- Shaft seal
- HQQE
- Stages
- 3
- Standard
- NEMA
- Support bearing
- Graflon
- Thrust handling device
- Y
- Type of connection
- ANSI
- Version
- A
Dimensional Drawing