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Description
Grundfos — World's Largest Pump Manufacturer · Bjerringbro, Denmark
CR 64-3-1 K-G-A-E-HQQE · Vertical Multistage Centrifugal Pump
The Grundfos 99968356 (CR 64-3-1 K-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. Nominal performance: 339US gpm at 290ft. Rated 230/460V, 3.0-Phase, 60 Hz. Applications include HVAC: Heating, HVAC: Air Conditioning, Plumbing: Pressure Boosting and more.
Power
40HP
Voltage
230/460V
Phase
3.0-Phase
Max Flow
339US gpm
Max Head
290ft
Max Pressure
232.06psi
Grundfos
World's largest pump manufacturer — engineering and manufacturing in 17 countries since 1945
Industrial Grade
IE3 / NEMA Premium motor — reduces operating cost over service life
Authorized Distributor
Genuine Grundfos product — full manufacturer warranty coverage
Expert Support
Technical help available — call (781) 281-8905 or chat
Why This Product
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 Information — CR 64-3-1 K-G-A-E-HQQE
Series: CR
Model Code: CR 64-3-1 K-G-A-E-HQQE
Seal Type: Cartridge seal — H rubber bellows, QQ SiC/SiC faces, E EPDM O-ring
Impeller Material: Stainless steel
Housing Material: Cast iron
Shaft Seal: HQQE
Flange Rating: PN 16
Technical Specifications
| Model Number | 99968356 |
| Product Series | CR |
| Series Description | Vertical Multistage Centrifugal Pump |
| Power | 40HP |
| Voltage | 230/460V |
| Phase | 3.0-Phase |
| Frequency | 60 Hz |
| Motor Speed | 3560rpm |
| Pump Speed | 3525rpm |
| Full Load Current | 92,6/46,3A |
| Motor Type | WEG |
| Motor Efficiency Class | IE3 / NEMA Premium |
| Motor Efficiency | IE3 92,4% |
| Insulation Class | F |
| Protection Class (IP) | TEFC |
| Nominal Flow | 339US gpm |
| Nominal Head | 290ft |
| Max Operating Pressure | 232.06psi |
| Max Fluid Temperature | 248°F |
| Max Ambient Temperature | 104°F |
| Inlet Connection | 4inch |
| Outlet Connection | 4inch |
| Pipe Pressure Rating | PN 16 |
| Pipe Standard | ANSI |
| Impeller Material | Stainless steel |
| Housing Material | Cast iron |
| Shaft Seal | HQQE |
| Approvals / Certifications | CURUS |
Applications
HVAC: Heating
HVAC: Air Conditioning
Plumbing: Pressure Boosting
District heating
District cooling
Machining
Wash and clean
Process liquids transfer
Industrial heating
Cooling
Industrial water supply & transfer
Industrial wastewater treatment & reuse
Industrial process water treatment
Desalination
Municipal surface water
Drinking water treatment
Municipal water transportation
Municipal solar solutions
Rotor & spray irrigation
Ground water transfer
Livestock & Wildlife Watering
Water Treatment Fertigation
Chemigation & Dosing
Pivot & Lateral Irrigation
Frost protection
Solar boosting and water supply solutions
Controls and digital groundwater management
Solar controls and digital water management
Municipal solar solutions
Agriculture solar solutions
Livestock watering with solar solutions
Community solar solutions
Important Notices
| Electrical | Verify supply voltage, phase, and frequency match nameplate before installation: 230/460V, 3.0-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. |
Documentation
✓ Installation and Operating Manual (IOM) — CR Series
✓ Product Data Sheet — CR 64-3-1 K-G-A-E-HQQE
✓ Service Manual and Spare Parts List
Need the IOM, data sheet, or spare parts list? Contact PumpStop and we'll send it over.
Before You OrderConfirm model code, voltage, phase, and frequency match your installation. For sizing help, spare parts, or documentation, call (781) 281-8905 or chat with PumpStop.
- EAN
- 5715114889537
- Applications
- Industrial applications
- Actual impeller diameter
- 5.63 in
- Approvals
- CURUS
- Bearing 1
- SIC
- Built-in motor protection
- NONE
- Code for rubber
- E
- Code for shaft seal
- HQQE
- Connect code
- G
- Connection
- ANSI
- Connection 2
- PN 16
- Cooling
- IC 411
- Curve tolerance
- ISO9906:2012 3B
- Density
- 62.29 lb/ft³
- Diameter
- 5.63 in
- DOE Pump Energy Index CL
- 0.93
- Enclosure class (IEC 34-5)
- IP55
- Eta 1/1
- 0.924
- Flange rating inlet
- 150 lb
- Flange size for motor
- 324TC
- Frequency
- 60 HZ
- Frequency converter
- NONE
- Full load SF current
- 116/57.9 A
- Gross weight
- 743.0 lb
- IE Eff. Class
- IE3 / NEMA Premium
- IE efficiency
- IE3 92,4%
- IE Efficiency class
- IE3 / NEMA Premium
- Impeller
- Stainless steel
- Impellers
- 3
- Insulation
- F
- Insulation class (IEC 85)
- F
- Liquid max temp
- 120°C
- Liquid temperature range
- -22 .. 248 °F
- Low NPSH
- Y
- Material code
- A
- Material Pricing Group
- 3L
- Max pressure at stated temp
- 232 psi / 250 °F
- Maximum ambient temperature
- 104 °F
- Maximum head
- 381.9 ft
- Maximum operating pressure
- 232.06 psi
- Maximum permissible operating pressure
- 16bar
- Model
- B
- Motor
- 324TC
- Motor efficiency at 1/2 load
- 0.917
- Motor efficiency at 3/4 load
- 0.924
- Motor efficiency at full load 1
- 0.924
- Motor protec
- NONE
- Motor standard
- NEMA
- Motor type
- WEG
- n rpm
- 3560rpm
- Net weight
- 725.0 lb
- Number of poles
- 2
- Number of reduced-diameter impellers
- 1
- P2 HP
- 40 HP
- P2 kW
- 30kW
- Phase
- 3
- Power (P2) required by pump
- 40 HP
- Power factor 1
- 0.88
- Pressure rating
- PN 16
- Pressure rating for connection
- PN 16
- Product family
- CR 64
- Pump
- 40 HP
- Pump housing
- Cast iron
- Pump inlet
- 4
- Pump outlet
- 4
- Pump version
- K
- Pumped liquid
- Water
- Rated current
- 92.6/46.3 A
- Rated flow
- 339 US gpm
- Rated flow 2
- 339 US gpm
- Rated head
- 290 ft
- Rated head 2
- 290 ft
- Rated power - P2
- 40 HP
- Rated speed
- 3560 rpm
- Rated voltage
- 3 x 230/460 V
- Real Time
- Delivery date to be confirmed on Sales Order Update with real time availability and Net price
- Rubber
- E
- Selected liquid temperature
- 68 °F
- Service factor
- 1.25
- Shaft seal
- HQQE
- Stages
- 3
- Standard
- NEMA
- Starting current
- 6.3
- Support bearing
- Graflon
- Type
- WEG
- Type of connection
- ANSI
- Version
- K
Dimensional Drawing
Wiring Diagram
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