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Description
Grundfos — World's Largest Pump Manufacturer · Bjerringbro, Denmark
98795475 · Submersible Multistage Pump — Tank Top
The Grundfos 98795475 (MTR 32-9/6 A-F-A-HUUV) is a Submersible Multistage Pump — Tank Top. Vertical multistage pump for tank top mounting. For machine tool coolant, deionized water, and process liquid applications. Nominal performance: 159US gpm at 429.5ft. Rated 220-277D/380-480YV, 3.0-Phase, 60 Hz.
Power
25HP
Voltage
220-277D/380-480YV
Phase
3.0-Phase
Max Flow
159US gpm
Max Head
429.5ft
Max Pressure
362.59psi
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
Tank Top Installation
MTR installs directly on the tank lid — no pipe supports, no baseplate, no inline piping modifications. Ready to run in the space the tank already occupies.
Stainless Steel Throughout
All wetted parts in stainless steel. No corrosion from coolants, deionized water, cutting fluids, or mild process chemicals.
Multistage for High Head in Small Diameter
Multiple stages in a 4" or 6" diameter column provide the head of a much larger pump. Ideal where vertical space exists but floor space is limited.
Wide Flow and Head Range
MTR series covers 0.5 to 16 m³/h flow and up to 235 m head. Confirms correct model for your system requirements.
MTRE Variable Speed Option
MTRE adds an integrated frequency converter for constant pressure control. Same tank top installation, no external VFD required.
Genuine Grundfos Parts Available
As an authorized Grundfos distributor, PumpStop stocks and can source MTR repair kits, mechanical seals, and service components.
Model Information — 98795475
Series: MTR
Impeller Material: Stainless steel
Shaft Seal: HUUV
Flange Rating: PN 40
Technical Specifications
| Model Number | 98795475 |
| Product Series | MTR |
| Series Description | Submersible Multistage Pump — Tank Top |
| Power | 25HP |
| Voltage | 220-277D/380-480YV |
| Phase | 3.0-Phase |
| Frequency | 60 Hz |
| Motor Speed | 3520-3560rpm |
| Pump Speed | 3540rpm |
| Full Load Current | 59,5-48,5/34,5-28,0A |
| Motor Type | 160BC |
| Motor Protection | PTC |
| Motor Efficiency Class | NEMA Premium / IE3 60Hz |
| Motor Efficiency | 91.0-91.7% |
| Insulation Class | F |
| Protection Class (IP) | IP55 Dust/Jetting |
| Nominal Flow | 159US gpm |
| Nominal Head | 429.5ft |
| Max Operating Pressure | 362.59psi |
| Max Fluid Temperature | 194°F |
| Max Ambient Temperature | 140°F |
| Outlet Connection | DN 65 |
| Pipe Pressure Rating | PN 40 |
| Pipe Standard | DIN |
| Impeller Material | Stainless steel |
| Shaft Seal | HUUV |
| Approvals / Certifications | CE, EAC, UKCA |
Important Notices
| Electrical | Verify supply voltage, phase, and frequency match nameplate before installation: 220-277D/380-480YV, 3.0-Phase, 60 Hz. |
| Temperature limits | Do not exceed max fluid temperature 194°F or max ambient temperature 140°F. Exceeding limits damages seals and motor insulation. |
| Dry running | Do not run dry. MTR 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) — MTR Series
✓ Product Data Sheet — 98795475
✓ 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
- 5712601475235
- Approvals
- CE
- Built-in motor protection
- PTC
- Cable gland entry
- 2xM20 + 4xM40 knock out
- Chambers
- 9
- Code for shaft seal
- HUUV
- Connect code
- F
- Connection
- PN 40
- Curve tolerance
- ISO9906:2012 3B
- Density
- 998.2 kg/m³
- Enclosure class (IEC 34-5)
- 55 Dust/Jetting
- Flange size for motor
- FF300
- Frequency converter
- NONE
- Gross weight
- 186.0 kg
- IE Efficiency class
- NEMA Premium / IE3 60Hz
- Immersion depth
- 713 mm
- Impeller
- Stainless steel
- Impellers
- 0
- Insulation class (IEC 85)
- F
- Liquid temperature range
- -10 .. 90 °C
- Mains frequency
- 60 Hz
- Material code
- A
- Material Pricing Group
- 32
- Max pressure at stated temp
- 25 bar / 90 °C
- Maximum ambient temperature
- 60 °C
- Maximum operating pressure
- 25 bar
- Minimum efficiency index, MEI ≥
- 0.7
- Model
- B
- Motor
- FF300
- Motor efficiency at 1/2 load
- 92.4-91.8 %
- Motor efficiency at 3/4 load
- 92.3-93.1 %
- Motor efficiency at full load 1
- 91.0-91.7 %
- Motor standard
- IEC
- Motor type
- 160BC
- Net weight
- 161.0 kg
- Number of poles
- 2
- Number of reduced-diameter impellers
- 0
- Power factor 1
- 0.89-0.84
- Pressure rating for connection
- PN 40
- Pump speed on which pump data are based
- 3540 rpm
- Pump version
- A
- Pumped liquid
- Water
- Rated current
- 59
- Rated flow
- 36 m³/h
- Rated head
- 130.9 m
- Rated power - P2
- 18.5 kW
- Rated speed
- 3520-3560 rpm
- Rated voltage
- 3 x 220-277D/380-480Y V
- Real Time
- Delivery date to be confirmed on Sales Order Update with real time availability and Net price
- Selected liquid temperature
- 20 °C
- Service factor
- 1
- Size of outlet connection
- DN 65
- Standard
- IEC
- Starting current
- 670-1100 %
- Suitable for 50/60 Hz
- N
- Terminal box position
- 6
- Type
- 160BC
- Type of connection
- DIN
- Version
- A
Dimensional Drawing
Wiring Diagram
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