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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
98538963 · Inline Single-Stage Pump — Variable Speed
The Grundfos 98538963 (TPE 50-160/2 S-A-G-A-BUBE-GBB) is a Inline Single-Stage Pump — Variable Speed. Inline pump with integrated frequency converter and differential pressure sensor for energy-efficient HVAC. Nominal performance: 92.5US gpm at 36.09ft. Rated 200-240V, 1.0-Phase, 60 Hz. Applications include HVAC: Heating.
Power
1.5HP
Voltage
200-240V
Phase
1.0-Phase
Max Flow
92.5US gpm
Max Head
36.09ft
Max Pressure
145.04psi
Grundfos
World's largest pump manufacturer — engineering and manufacturing in 17 countries since 1945
Ultra-Premium Efficiency
IE5 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 — 98538963
Series: TPE
Impeller Material: Stainless steel
Housing Material: Cast iron
Shaft Seal: BUBE
Flange Rating: 125 psi
Technical Specifications
| Model Number | 98538963 |
| Product Series | TPE |
| Series Description | Inline Single-Stage Pump — Variable Speed |
| Power | 1.5HP |
| Voltage | 200-240V |
| Phase | 1.0-Phase |
| Frequency | 60 Hz |
| Motor Speed | 360-4000rpm |
| Pump Speed | 3450rpm |
| Full Load Current | 6,7-5,6A |
| Motor Type | 80B |
| Motor Protection | ELEC |
| Motor Efficiency Class | IE5 |
| Motor Efficiency | 86,9% |
| Insulation Class | F |
| Protection Class (IP) | IP55 |
| Nominal Flow | 92.5US gpm |
| Nominal Head | 36.09ft |
| Max Operating Pressure | 145.04psi |
| Max Fluid Temperature | 284°F |
| Max Ambient Temperature | 122°F |
| Min Ambient Temperature | -4°F |
| Nominal Pipe Bore | 2"inch |
| Pipe Pressure Rating | 125 psi |
| Pipe Standard | US |
| Impeller Material | Stainless steel |
| Housing Material | Cast iron |
| Shaft Seal | BUBE |
Applications
HVAC: Heating
Important Notices
| Electrical | Verify supply voltage, phase, and frequency match nameplate before installation: 200-240V, 1.0-Phase, 60 Hz. |
| Temperature limits | Do not exceed max fluid temperature 284°F or max ambient temperature 122°F. Exceeding limits damages seals and motor insulation. |
| Dry running | Do not run dry. TPE 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) — TPE Series
✓ Product Data Sheet — 98538963
✓ 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
- 5711496812224
- Applications
- Heating, Air-conditioning, Industrial applications, Pressure boosting, Drinking Water Distribution
- Built-in motor protection
- ELEC
- Code for shaft seal
- BUBE
- Connect code
- G
- Connection
- 125 psi
- Control panel
- HMI200 - Standard
- Curve tolerance
- ISO9906:2012 3B2
- Density
- 62.29 lb/ft³
- Enclosure class (IEC 34-5)
- IP55
- Function Module
- FM300 - Advanced
- Gross weight
- 83.8 lb
- Housing
- Cast iron
- IE efficiency
- 0.869
- IE Efficiency class
- IE5
- Impeller
- Stainless steel
- Insulation class (IEC 85)
- F
- Liquid temperature range
- 5 .. 284 °F
- Mains frequency
- 60 Hz
- Material code
- A
- Material Pricing Group
- 4
- Maximum head
- 52.5 ft
- Maximum operating pressure
- 10 bar
- Motor efficiency at full load 1
- 0.869
- Motor type
- 80B
- Number of poles
- 2
- Power factor 1
- 0.99
- Pressure rating for connection
- 125 psi
- Product family
- TPE Series 2000, TPE3, North America
- Pump housing
- Cast iron
- Pump speed on which pump data are based
- 3450 rpm
- Pump version
- A
- Pumped liquid
- Water
- Range of ambient temperature
- -4 .. 122 °F
- Rated current
- 6.70-5.60 A
- Rated flow
- 92.5 US gpm
- Rated head
- 36.09 ft
- Rated power - P2
- 1.1 kW
- Rated speed
- 360-4000 rpm
- Rated voltage
- 1 x 200-240 V
- Real Time
- Delivery date to be confirmed on Sales Order Update with real time availability and Net price
- Selected liquid temperature
- 68 °F
- Size of connection
- 2" inch
- Type
- 80B
- Type of connection
- US
- Version
- A
Dimensional Drawing
Wiring Diagram
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