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Description
⚠ Discontinued Product
This model has been discontinued by Grundfos. Stock may be limited. Contact PumpStop to confirm availability or discuss a replacement model.
Grundfos — World's Largest Pump Manufacturer · Bjerringbro, Denmark
49Z90257 · Inline Single-Stage Centrifugal Pump
The Grundfos 49Z90257 is a Inline Single-Stage Centrifugal Pump. Single-stage close-coupled inline pump for HVAC heating and cooling. Suction and discharge on the same centerline. Nominal performance: 92.5US gpm at 39.37ft. Rated 208-230YY/460YV, 3.0-Phase, 60 Hz. Applications include HVAC: Heating.
Power
1.5HP
Voltage
208-230YY/460YV
Phase
3.0-Phase
Max Flow
92.5US gpm
Max Head
39.37ft
Max Pressure
145.04psi
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 — 49Z90257
Series: TP
Impeller Material: Stainless steel
Housing Material: Cast iron
Shaft Seal: RUUE
Technical Specifications
| Model Number | 49Z90257 |
| Product Series | TP |
| Series Description | Inline Single-Stage Centrifugal Pump |
| Power | 1.5HP |
| Voltage | 208-230YY/460YV |
| Phase | 3.0-Phase |
| Frequency | 60 Hz |
| Motor Speed | 3450-3480rpm |
| Full Load Current | 4,70-4,60/2,30A |
| Motor Type | 80BA |
| Motor Efficiency Class | NEMA Premium / IE3 60Hz |
| Motor Efficiency | IE3 84,0% |
| Insulation Class | F |
| Protection Class (IP) | IP55 Dust/Jetting |
| Nominal Flow | 92.5US gpm |
| Nominal Head | 39.37ft |
| Max Operating Pressure | 145.04psi |
| Max Fluid Temperature | 140°F |
| Max Ambient Temperature | 140°F |
| Min Ambient Temperature | -22°F |
| Nominal Pipe Bore | 2" |
| Pipe Standard | USA |
| Impeller Material | Stainless steel |
| Housing Material | Cast iron |
| Shaft Seal | RUUE |
Applications
HVAC: Heating
Important Notices
| Electrical | Verify supply voltage, phase, and frequency match nameplate before installation: 208-230YY/460YV, 3.0-Phase, 60 Hz. |
| Temperature limits | Do not exceed max fluid temperature 140°F or max ambient temperature 140°F. Exceeding limits damages seals and motor insulation. |
| Dry running | Do not run dry. TP 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) — TP Series
✓ Product Data Sheet — 49Z90257
✓ 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
- 5700831557548
- Applications
- Heating, Air-conditioning, Industrial applications, Pressure boosting, Drinking Water Distribution
- Actual impeller diameter
- 3.43 in
- Approvals on motor nameplate
- CE
- Built-in motor protection
- NONE
- Connection
- 2"
- Country code
- Namreg
- Curve tolerance
- ISO9906:2012 3B2
- Density
- 62.29 lb/ft³
- Diameter
- 3.43 in
- DOE Pump Energy Index CL
- 0.91
- Flange standard
- USA
- Full load SF current
- 5
- Gross weight
- 84.0 lb
- Housing
- Cast iron
- Impeller
- Stainless steel
- Insulation class (IEC 85)
- F
- KVA code
- G
- Liquid temperature range
- -13 .. 140 °F
- Mains frequency
- 60 Hz
- Material Pricing Group
- 54
- Maximum operating pressure
- 10 bar
- Motor efficiency at 1/2 load
- 0.82
- Motor efficiency at 3/4 load
- 83.5-81.0 %
- Motor efficiency at full load 1
- 0.84
- Motor type
- 80BA
- Pipe connection
- 2"
- Power factor 1
- 0.84-0.75
- Primary shaft seal
- RUUE
- Product family
- TP, North America
- Pump housing
- Cast iron
- Pump No
- 96405265
- Pumped liquid
- Water
- Range of ambient temperature
- -22 .. 140 °F
- Rated current
- 4
- Rated flow
- 92.5 US gpm
- Rated head
- 39.37 ft
- Rated power - P2
- 1.1 kW
- Rated speed
- 3450-3480 rpm
- Rated voltage
- 3 x 208-230YY/460Y V
- Real Time
- Delivery date to be confirmed on Sales Order Update with real time availability and Net price
- Selected liquid temperature
- 68 °F
- Service factor
- 1.15
- Standard
- USA
- Type
- 80BA
Dimensional Drawing
Wiring Diagram
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