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Description
Grundfos — World's Largest Pump Manufacturer · Bjerringbro, Denmark
92742956 · End-Suction Close-Coupled Pump
The Grundfos 92742956 (NB 32-125.1/120 AAF2KESBQQEHW1) is a End-Suction Close-Coupled Pump. End-suction close-coupled pumps compliant with EN733 for HVAC and water supply. Nominal performance: 49.8US gpm at 59.06ft. Rated 220-240D/380-420YV, 3.0-Phase, 50 Hz.
Power
2HP
Voltage
220-240D/380-420YV
Phase
3.0-Phase
Max Flow
49.8US gpm
Max Head
59.06ft
Max Pressure
232.06psi
Grundfos
World's largest pump manufacturer — engineering and manufacturing in 17 countries since 1945
Industrial Grade
IE3 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 — 92742956
Series: NB
Impeller Material: Stainless steel
Housing Material: Stainless steel
Shaft Seal: BQQE
Flange Rating: PN 16
Technical Specifications
| Model Number | 92742956 |
| Product Series | NB |
| Series Description | End-Suction Close-Coupled Pump |
| Power | 2HP |
| Voltage | 220-240D/380-420YV |
| Phase | 3.0-Phase |
| Frequency | 50 Hz |
| Motor Speed | 2910rpm |
| Pump Speed | 2939rpm |
| Full Load Current | 5,2/3A |
| Motor Type | INNOMOTICS |
| Motor Efficiency Class | IE3 |
| Motor Efficiency | IE3 84,2% |
| Insulation Class | F |
| Protection Class (IP) | IP55 |
| Nominal Flow | 49.8US gpm |
| Nominal Head | 59.06ft |
| Max Operating Pressure | 232.06psi |
| Max Fluid Temperature | 248°F |
| Max Ambient Temperature | 131°F |
| Inlet Connection | DN 50 |
| Outlet Connection | DN 32 |
| Pipe Pressure Rating | PN 16 |
| Pipe Standard | EN 1092-1 |
| Impeller Material | Stainless steel |
| Housing Material | Stainless steel |
| Shaft Seal | BQQE |
| Impeller Nominal Diameter | 4.93in |
Important Notices
| Electrical | Verify supply voltage, phase, and frequency match nameplate before installation: 220-240D/380-420YV, 3.0-Phase, 50 Hz. |
| Temperature limits | Do not exceed max fluid temperature 248°F or max ambient temperature 131°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 — 92742956
✓ 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
- 5715118973287
- Actual impeller diameter
- 4.72 in
- Bearing insulation type N-end
- STEEL BEARING
- Bearing lubrication
- Grease
- Built-in motor protection
- NONE
- Code for rubber
- E
- Code for shaft seal
- BQQE
- Connect code
- F2
- Connection
- PN 16
- Curve tolerance
- ISO9906:2012 3B2
- Density
- 62.29 lb/ft³
- Diameter
- 0.94 in
- Enclosure class (IEC 34-5)
- IP55
- Frequency converter
- NONE
- Gross weight
- 123.0 lb
- Housing
- Stainless steel
- IE efficiency
- IE3 84
- IE Efficiency class
- IE3
- Impeller
- Stainless steel
- Insulation class (IEC 85)
- F
- Internal pump house coating
- No coating
- Liquid temperature range
- -13 .. 248 °F
- Mains frequency
- 50 Hz
- Material code
- K
- Material Pricing Group
- 91
- Maximum operating pressure
- 16 bar
- Minimum efficiency index, MEI ≥
- 0.7
- Motor efficiency at 1/2 load
- 83.2-83.2 %
- Motor efficiency at 3/4 load
- 84.6-84.6 %
- Motor efficiency at full load 1
- 84.2-84.2 %
- Motor type
- SIEMENS
- Mount. design. acc. IEC 34-7
- IM V1/B5
- Net weight
- 101.0 lb
- Number of poles
- 2
- Pipe connection standard
- EN 1092-1
- Power factor 1
- 0.86
- Pressure rating for connection
- PN 16
- Pressure sensor
- N
- Pump housing
- Stainless steel
- Pump speed on which pump data are based
- 2939 rpm
- Pump version
- A
- Pumped liquid
- Water
- Range of ambient temperature
- -4 .. 131 °F
- Rated current
- 5.2/3 A
- Rated flow
- 49.8 US gpm
- Rated head
- 59.06 ft
- Rated power - P2
- 1.5 kW
- Rated speed
- 2910 rpm
- Rated voltage
- 3 x 220-240D/380-420Y 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
- Shaft
- Stainless steel
- Shaft diameter
- 0.94 in
- Size of inlet connection
- DN 50
- Size of outlet connection
- DN 32
- Standard
- EN 1092-1
- Starting current
- 810-810 %
- Support block (Yes/No)
- N
- Type
- SIEMENS
- Version
- A
Dimensional Drawing
Wiring Diagram
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