Grundfos SL1.80.80.15.EX.4.50D.C.Z 98720817 1.5 kW 415v Submersible Waste Pump Dn80 #4455
£1,662.50GBP
inc VAT
Technical overview
About these figures
These figures provide simplified information for searching, filtering and initial comparison. They are not a complete specification. Exact details depend on the model and configuration.
Power rating: Usually the motor’s rated mechanical output (P2). Electrical input power (P1) is a different value. Check the product’s nameplate or manufacturer’s documentation to confirm which rating applies.
Outlet size: The nominal size class is expressed on a millimetre basis: for example, DN40 denotes a nominal 40 mm size. It does not specify the exact measured opening, connection type, thread, flange drilling or pressure rating.
Head and flow: Indicative figures describing the pump’s performance envelope, rather than a single operating duty point. Do not assume maximum flow is available at maximum head, or that every combination within the ranges is achievable. Minimum figures do not establish safe continuous operating limits. Consult the relevant performance curve.
Check the product description, nameplate and manufacturer’s documentation before selection or installation. Please contact us before purchasing if you need help confirming suitability or connection details.
| Nominal voltage | 415v |
| Rated power | 1.5 kW |
| Nominal outlet size (mm) | DN 80 |
| Shipping Weight | 130.0 kg |
| Package Dimensions | 60.0 × 80.0 × 100.0 cm |
| Indicative minimum head | 1.5 m head (0.1 bar) |
| Indicative maximum head | 8.9 m head (0.9 bar) |
| Indicative minimum flow | 0.0 m³/h (0.0 L/s) |
| Indicative maximum flow | 123.0 m³/h (34.2 L/s) |
Grundfos SL1.80.80.15.EX.4.50D.C.Z (98720817) – 1.5kW 415V Submersible Wastewater Pump (DN80) #4455
This listing is for a Grundfos SL1 sewage / wastewater pump with an S tube® impeller, a DN80 flanged outlet, and an EX (explosion-proof) motor variant. The SL1/SLV family is used across municipal, commercial and industrial wastewater duties where solids handling and serviceability are important.
- Impeller type: SL1 with S tube® hydraulic
- Discharge connection: DN80 flanged outlet (standard flange interface for compatible fittings and pipework)
- Protection & monitoring: thermal switches in the motor windings and moisture monitoring in the motor chamber
- EX variant: explosion-proof motor version (hazardous-area suitability depends on the complete installation and control equipment)
Need help confirming suitability?
Call us on 01803 220416 for technical advice.
Manufacturer product page
Full technical details can be found on the official Grundfos product page:
View Grundfos SL1.80.80.15.EX.4.50D.C.Z (98720817) – Variant specifications
Key specifications (summary)
- Model: SL1.80.80.15.EX.4.50D.C.Z
- Grundfos product number: 98720817
- Rated motor output (P2): 1.5 kW
- Electrical supply / starting: 3 × 380–415 V, 50 Hz, direct-on-line (DOL)
- Motor: 4-pole
- Outlet: DN80
- Free spherical passage (maximum particle size): 80 mm
- Maximum installation depth: 17 m
- Variant: EX (explosion-proof)
- Generation: C
- Custom build: Z
Operating limits (summary)
- Operating mode: intended for intermittent duty (S3); continuous duty (S1) is possible when completely submerged
- Liquid temperature: 0–40 °C
- pH range: 6.5–14 for standard materials; for fluctuating pH values, 4–14 is stated as acceptable guidance
- EX operating condition (manufacturer note): explosion-proof pumps must be fully submerged during operation
Applications & selection guidance (SL1 vs SLV)
Grundfos provides a selection table intended as guidance when choosing between SL1 (S tube®) and SLV (vortex). Selection should be based on the pumped liquid characteristics, solids/fibre loading and operating pattern.
- Dry solids content: up to 3% – SL1 or SLV may be suitable; above this (up to 5%) – guidance points to SLV
- Fibre/solids content: relatively low – SL1 or SLV; relatively high – SLV is typically preferred
- Long fibres (e.g. laundries): both SL1 and SLV are shown as suitable in the guidance table
Typical duties shown as suitable for SL1 include:
- Stormwater, groundwater, drainage and surface water
- Drainage and surface water with small impurities
- Abrasive surface water
- Domestic wastewater including discharge from toilets
- Municipal sewage
- Sewage from commercial buildings
- Industrial process water
Construction & protection features
- Double mechanical cartridge shaft seal arrangement
- Thermal protection: thermal switches in the stator windings
- Leakage monitoring: moisture monitoring in the motor chamber
- Corrosion protection: protective coating system on cast iron components
- Accessories: supplied separately and not factory-fitted
Delivery & Shipping
- UK and international delivery available
- Next working day dispatch is often possible
- If delivery is time-critical, please call to confirm availability
Frequently Asked Questions
What does the model number mean?
- SL – sewage / wastewater pump range
- 1 – S tube® impeller (SL1)
- 80 – 80 mm free spherical passage
- 80 – DN80 outlet
- 15 – 1.5 kW motor output
- EX – explosion-proof version
- 4 – 4-pole motor
- 5 – 50 Hz
- 0D – 3 × 380–415 V direct-on-line starting
- C – generation
- Z – custom build
What discharge connection does this pump have?
This pump is supplied with a standard DIN DN80 flange. Because it follows the DIN standard, compatible fittings, guide claws or accessories from Grundfos or other manufacturers can be connected to the outlet. This often allows connection into existing systems originally using pumps from brands such as Flygt, Lowara, Sulzer, Wilo, KSB and other manufacturers, subject to site configuration.
Can model numbers be interchanged?
Occasionally it is possible to swap different model or part codes for alternative versions within the SL range, depending on the duty point, installation type and electrical configuration. Please call us for a recommendation before ordering if you are looking to replace a different code.
Why choose S tube® (SL1) instead of a vortex pump?
The SL1 S tube® hydraulic is typically selected where you want a balance of energy efficiency and solids handling.
What is the maximum particle size this pump can pass?
The pump has an 80 mm free spherical passage.
What is the maximum installation depth?
Maximum installation depth is 17 m.
Does it include motor protection and leakage monitoring?
Yes – thermal switches and moisture monitoring are included.
Do accessories come fitted?
No. Accessories are supplied separately and are not factory-fitted.
About Our Stock
Stock code: #4455
We specialise in supplying new and unused surplus pumps. All units are inspected prior to dispatch and supplied with guarantee.
Specification & guidance notice: Technical information and FAQ content are provided in good faith based on manufacturer literature and industry experience. Descriptions of hydraulic types and application suitability represent general guidance only and do not constitute a guarantee of performance. Actual results will depend on system design, pipework losses, media characteristics, and installation conditions. Please consult the manufacturer & thier documentation and satisfy yourself that the equipment is suitable for your specific application prior to purchase.