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SKU: 98626553
Grundfos SL1.50.65.22.A.EX.2.50B.C Cast Iron 2-Pole Wastewater Pump for Municipal Networks with S-Tube Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Certified for hazardous areas, the Grundfos SL1.50.65.22.A.EX.2.50B.C is a submersible wastewater pump for municipal collection systems. This explosion-proof model holds CE EN12050-2 and IECEX certifications for use in hazardous environments. It is intended for permanent submerged installation in wet wells using an auto-coupling system or for wastewater transfer in municipal networks.
A 2.2 kW 2-pole motor powers the unit at 2900 rpm on a 3 x 415V supply with a rated current of 4.7 Amps. It achieves a maximum head up to 17.7 m and a maximum flow up to 1248 L/min. The motor is designed for continuous S1 duty in untreated wastewater at temperatures between 0°C and 40°C. The motor is cooled by the surrounding pumped liquid during normal submerged operation.
The hydraulic design utilises an S-tube impeller providing a 50 mm free passage for untreated wastewater containing solids while helping reduce the risk of clogging. The unit is equipped with a DN 65 inlet and a DN 65 (2.5") outlet connection with DIN flange standards. This configuration supports consistent fluid discharge in civil wastewater systems.
Built with an EN-GJL-250 cast iron pump housing and motor casing, the unit includes a double SIC/SIC mechanical shaft seal arrangement. Integrated moisture and water-in-oil sensors are used for seal and motor monitoring. Protection includes winding-embedded thermal switches, 10 metres of LYNIFLEX power cable, and an IP68 enclosure rating. The pump is suitable for installation depths up to 7 metres.
FEATURES
- Explosion-proof EX certified motor housing suitable for operation in hazardous municipal utility environments.
- S-tube impeller providing a 50 mm free passage for reliable transit of wastewater containing solids.
- 2.2 kW 2-pole motor operating at 2900 rpm on a 3 x 415V three-phase supply with 4.7 Amps rated current.
- DN 65 inlet and DN 65 (2.5") discharge connection with DIN flange standards for municipal infrastructure.
- Double mechanical SIC/SIC shaft seals with an oil chamber providing redundant protection against moisture ingress.
- Integrated moisture and water-in-oil sensors for monitoring of seal integrity and motor protection.
- Winding-embedded thermal switches for automatic electrical safety and overheating protection.
- 10-metre LYNIFLEX power cable and IP68 enclosure rating for continuous submerged wet well service.
SPECIFICATIONS
| Max Flow | 1248 L/Min |
| Max Head | 17.7 m |
| Power | 2.2 kW / 415v |
| Rated Current | 4.7 Amps |
| Suitable For | Municipal Wastewater |
| Body Material | Cast iron |
| Liquid Temperature | Maximum 40°C |
| Inlet Size | 65 mm |
| Outlet Size | 65 mm |
| Warranty | 24 Months |
Warranty & Returns
All products supplied by Foundation Pumps are covered by a minimum 12-month warranty unless otherwise stated. Some brands may offer longer manufacturer warranties. Warranty covers manufacturing defects, faulty materials and workmanship under normal use.
- Products must be installed correctly and in accordance with the manufacturer’s instructions.
- Warranty does not cover incorrect installation, misuse, dry running, normal wear and tear, unauthorised repairs or damage caused by external factors.
- Proof of purchase, photos, videos and installation details may be requested when assessing a warranty claim.
- The customer is responsible for returning the product to Foundation Pumps or the nominated service centre unless otherwise agreed.
- Removal, reinstallation, labour and associated site costs are generally the customer’s responsibility unless required under Australian Consumer Law.
- Change-of-mind returns may be accepted within 30 days provided the product is unused, uninstalled and returned in its original packaging.
- Customers are responsible for return freight costs for change-of-mind returns.
- Restocking fees may apply to special-order, bulky or non-stocked products.
- Used, installed or specially ordered products may not be eligible for change-of-mind returns.
- If a product arrives damaged or faulty, please contact Foundation Pumps as soon as possible so we can assist with the appropriate repair, replacement or refund.
Your rights under Australian Consumer Law are not affected.
Under peak municipal wastewater inflow, what maximum volumetric throughput is discharged per minute?
During peak wastewater inflow, Grundfos SL1.50.65.22.A.EX.2.50B.C maintains a maximum discharge throughput of 1248 L/Min.
In municipal lift stations, what peak dynamic elevation does this submersible sewage pump achieve?
Municipal lift stations deploy SL1.50.65.22.A.EX.2.50B.C to achieve a peak dynamic elevation of 17.7 m.
What motor kilowatt rating, supply voltage, and running current power this submerged assembly?
Powering this submerged assembly, SL1-50-65-22-A-EX-2-50B-C features a 2.2 kW motor connected to a three-phase 415 V supply line drawing 4.7 Amps.
What free spherical passage clearance does the single-channel S-tube impeller provide for raw sewage?
The single-channel S-tube impeller in SL1 50 65 22 A EX 2 50B C provides a dedicated 50 mm free spherical passage, allowing raw sewage to clear without ragging.
What guide rail auto-coupling arrangement supports rapid pit positioning and extraction?
For rapid pit positioning, SL1/50/65/22/A/EX/2/50B/C connects directly to standard guide rail auto-coupling pedestals for fast hoist extraction.
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