Grundfos SL1 S-tube sewage and waste water pumps 400v/3ph
Grundfos SL1.50.65.40.EX.2.51D.C 98626705
- Established 1975
- Trusted by thousands of customers
The Grundfos SL1 pumps with S-tube impeller specifically designed for pumping sewage and wastewater in a wide range of municipal, private and industrial applications. .
- submerged installation on auto-coupling system
- submerged installation, free-standing
- municipal wastewater
- drainage water and groundwater
- domestic wastewater
- industrial wastewater
- process and cooling water
- municipal network pumping stations
- public buildings
- blocks of flats
- factories/industry
- Watertight cable entry of corrosion-resistant polyamide
- Power supply cable incorporating wires for thermal sensors in the motor windings
- No additional cable required for sensors in pumps with sensors
- Monitoring of operating conditions for pumps with sensors
- Moisture detector for continuous monitoring of motor enclosure and automatic cut-out in case of leakage
- Heavy-duty bearings greased for life
- Built for frequency converter operation
- Smooth pump surface prevents dirt and impurities from sticking to the pump
- Self-cleaning channel impeller with long vanes reducing the risk of jamming or clogging, or Super-Vortex impeller with high pumping efficiency and less downtime
- Explosion-proof motors for potentially explosive environments
- Motor insulation class F (155 °C)
- Enclosure class IP68 with thermal sensor in each phase
More about this product
Non-self-priming, single-stage, centrifugal pump designed for handling wastewater, process water and unscreened raw sewage. The pump is designed for intermittent and continous operations in submerged installation. The revolutionary S-tube® impeller provides free spherical passage of solids up to 50 mm and is suitable for wastewater with a dry matter content of up to 3 %. A unique stainless-steel clamp assembling system enables quick and easy disassembly of the pump from the motor unit for service and inspection. No special tools are required. Pipework connection is via a DIN flange.
The S-tube offers greater hydraulic efficiency than any other type of wastewater impeller, without compromising free passage.
This results in the lowest life cycle cost, trouble free operation and best-in-class non-clogging capabilities.
When you package this innovative, elegant and simple impeller design in the outstanding SE and SL ranges of submersible wastewater pumps and add IE3 motor components and super intelligent controls, we truly believe we are looking at the ultimate in wastewater pumping technology.
With the S-tube, Grundfos sets new standards for wastewater hydraulic design.
The S-tube resolves the challenges with sealing, vibration, abrasive wear and clogging that owners of wastewater pumping stations have lived with for way too long.
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data sheet PDFDownload
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manual PDFDownload
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s-tube explained PDFDownload
Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.
Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).
Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.
Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.
Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.
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Frequently Asked Questions
Quick answers to common questions about the Grundfos SL1.50.65.40.EX.2.51D.C 98626705. For technical specifications, see the product details above; for sizing or installation advice, contact our team. If you have any other questions, we're happy to help.
What is a submersible pump?
A submersible pump is designed to operate fully submerged in the liquid it is moving. The motor is sealed inside the pump body and cooled by the surrounding water. Submersibles are used for drainage, sewage, septic tanks, deep wells and boreholes, and for raising water from sumps, cellars and floodwater. Many stocked at Anglian Pumping handle solids in suspension.
Can submersible pumps handle solids and sewage?
Yes – some submersibles are designed for clean water only, others handle solids up to 50 mm or full raw sewage. Anglian Pumping stocks ABS, BBC, Flygt and T-T Submersibles ranges that include vortex, single channel and grinder impellers for different solids handling requirements. Always match the pump to the maximum solid size and the type of effluent it will see.
When should I use a submersible pump instead of a surface pump?
Use a submersible when the water level is more than around 8 metres below the pump installation point – surface pumps cannot self-prime beyond that depth. Submersibles are also better when the liquid contains solids, when noise must be minimised, or when the pump needs to operate in confined spaces such as sumps and chambers where a surface pump would not fit.