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Description
Grundfos — World's Largest Pump Manufacturer · Bjerringbro, Denmark
97839621 · End-Suction Close-Coupled Pump
The Grundfos 97839621 (NB 40-125/131 AAF2AESBAQELX2) is a End-Suction Close-Coupled Pump. End-suction close-coupled pumps compliant with EN733 for HVAC and water supply. Nominal performance: 239US gpm at 85.44ft. Rated 380-480DV, 3.0-Phase, 60 Hz. Applications include HVAC: Air Conditioning, Industrial heating.
Power
7.5HP
Voltage
380-480DV
Phase
3.0-Phase
Max Flow
239US gpm
Max Head
85.44ft
Max Pressure
232.06psi
Grundfos
World's largest pump manufacturer — engineering and manufacturing in 17 countries since 1945
Industrial Grade
NEMA Premium / IE3 60Hz 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
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.
Contact for Availability
Parts availability varies. Contact PumpStop to confirm stock, lead time, and pricing before placing an order.
Model Information — 97839621
Series: NB
Impeller Material: Cast iron
Housing Material: Cast iron
Shaft Seal: BAQE
Flange Rating: PN 16
Technical Specifications
| Model Number | 97839621 |
| Product Series | NB |
| Series Description | End-Suction Close-Coupled Pump |
| Power | 7.5HP |
| Voltage | 380-480DV |
| Phase | 3.0-Phase |
| Frequency | 60 Hz |
| Motor Speed | 3510-3550rpm |
| Pump Speed | 3530rpm |
| Full Load Current | 10,6-9,30A |
| Motor Type | 132SC |
| Motor Protection | PTC |
| Motor Efficiency Class | NEMA Premium / IE3 60Hz |
| Motor Efficiency | 89.5-89.5% |
| Insulation Class | F |
| Protection Class (IP) | IP55 Dust/Jetting |
| Nominal Flow | 239US gpm |
| Nominal Head | 85.44ft |
| Max Operating Pressure | 232.06psi |
| Max Fluid Temperature | 248°F |
| Max Ambient Temperature | 140°F |
| Inlet Connection | DN 65 |
| Outlet Connection | DN 40 |
| Pipe Pressure Rating | PN 16 |
| Pipe Standard | EN 1092-2 |
| Impeller Material | Cast iron |
| Housing Material | Cast iron |
| Shaft Seal | BAQE |
| Impeller Nominal Diameter | 4.92in |
Applications
HVAC: Air Conditioning
Industrial heating
Important Notices
| Electrical | Verify supply voltage, phase, and frequency match nameplate before installation: 380-480DV, 3.0-Phase, 60 Hz. |
| Temperature limits | Do not exceed max fluid temperature 248°F or max ambient temperature 140°F. Exceeding limits damages seals and motor insulation. |
| Dry running | Do not run dry. NB 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) — NB Series
✓ Product Data Sheet — 97839621
✓ 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
- 5710625519638
- Actual impeller diameter
- 131 mm
- Bearing insulation type N-end
- STEEL BEARING
- Bearing lubrication
- Grease
- Built-in motor protection
- PTC
- Code for rubber
- E
- Code for shaft seal
- BAQE
- Connect code
- F2
- Connection
- PN 16
- Curve tolerance
- ISO9906:2012 3B2
- Density
- 998.2 kg/m³
- Diameter
- 24 mm
- DOE Pump Energy Index CL
- 0.91
- DOE Pump Energy Index VL
- 0
- Enclosure class (IEC 34-5)
- 55 Dust/Jetting
- Frequency converter
- NONE
- Gross weight
- 94.0 kg
- Housing
- Cast iron
- IE Efficiency class
- NEMA Premium / IE3 60Hz
- Impeller
- Cast iron
- Insulation class (IEC 85)
- F
- Internal pump house coating
- CED
- Language on pump nameplate
- GB
- Liquid temperature range
- 0 .. 120 °C
- Mains frequency
- 60 Hz
- Material code
- A
- Material Pricing Group
- 56
- Maximum ambient temperature
- 60 °C
- Maximum operating pressure
- 16 bar
- Minimum efficiency index, MEI ≥
- 0.7
- Motor efficiency at 1/2 load
- 89.9-87.9 %
- Motor efficiency at 3/4 load
- 90.3-89.9 %
- Motor efficiency at full load 1
- 89.5-89.5 %
- Motor type
- 132SC
- Mount. design. acc. IEC 34-7
- IM V1/B5
- Net weight
- 77.0 kg
- Number of poles
- 2
- Pipe connection standard
- EN 1092-2
- Power factor 1
- 0.90-0.80
- Pressure rating for connection
- PN 16
- Pressure sensor
- N
- Pump housing
- Cast iron
- Pump speed on which pump data are based
- 3530 rpm
- Pump version
- A
- Pumped liquid
- Water
- Rated current
- 10.6-9.30 A
- Rated flow
- 54.26 m³/h
- Rated head
- 26.04 m
- Rated power - P2
- 5.5 kW
- Rated speed
- 3510-3550 rpm
- Rated voltage
- 3 x 380-480D V
- Real Time
- Delivery date to be confirmed on Sales Order Update with real time availability and Net price
- Rubber
- E
- Selected liquid temperature
- 20 °C
- Shaft
- Stainless steel
- Shaft diameter
- 24 mm
- Size of inlet connection
- DN 65
- Size of outlet connection
- DN 40
- Standard
- EN 1092-2
- Starting current
- 1020-1480 %
- Support block (Yes/No)
- N
- Type
- 132SC
- Version
- A
Dimensional Drawing
Wiring Diagram
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