Roll over image to zoom
SKU: 96104131
Grundfos SL1.50.65.11.Ex.2.50B Cast Iron 50mm Wastewater Pump for Process Water with Single Channel Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Evaluating internal fluid velocity paths, the SL1.50.65.11.Ex.2.50B non-self-priming, single-stage, centrifugal pump designed for handling wastewater, process water and unscreened raw sewage excels in high-volume fluid optimization. Engineered for stable hydraulic circulation, the assembly supports continuous submerged operations in municipal drainage stations.
Constructed with an EN-GJL-250 cast iron pump housing, the architecture is formulated to endure aggressive fluid dynamics over time. The heavy-duty cast iron motor house provides structural protection for internal mechanisms while operating underwater. A precision-engineered SiC/SiC primary shaft seal provides a barrier against fluid ingress in raw sewage applications.
This submersible wastewater pump achieves a maximum flow of 1068 L/Min and a maximum head of 15.8 m. Driven by a 1.1 kW motor requiring a 415v three-phase power supply, it operates continuously at a rated current of 3.1 Amps. Registering a net weight of 55.1 kg, it is highly suitable for guide rail installations using an automatic coupling arrangement.
Designed for industrial standards, this explosion-proof configuration supports facility safety in hazardous environments. The EN 12050-2 approval verifies its structural capacity to handle unscreened raw sewage. Utilizing a unique clamp assembling system, the pump enables rapid maintenance access, reducing service downtime during facility evaluations.
Features
- Revolutionary S-tube impeller provides free spherical passage of solids up to 50 mm.
- Operates at a rated speed of 2830 rpm with a direct-on-line starting method.
- Motor is protected by an IP68 enclosure class and insulation class F rating.
- Suitable for guide rail installations using an automatic coupling arrangement.
- Equipped with a 10 m H07RN-F power cable for flexible electrical connection.
- Net weight of the complete pump assembly is documented at 55.1 kg.
SPECIFICATIONS
| Max Flow | 1068 L/Min |
| Max Head | 15.8 m |
| Rated Current | 3.1 Amps |
| 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.
How much water volume can this pump displace through its outlet?
Peak fluid displacement on the Grundfos SL1.50.65.11.Ex.2.50B delivers up to 1068 L/Min under rated operating conditions.
How much vertical head pressure can this pump generate?
Fluid elevation through vertical risers reaches up to 15.8 m with the SL1.50.65.11.Ex.2.50B under standard duty points.
What kind of power supply does this pump require to run?
It operates on 415 V three-phase power, with the SL1-50-65-11-Ex-2-50B utilizing a durable 1.1 kW motor rated at 3.1 Amps.
How is the pump casing constructed to resist mechanical and fluid wear?
Wetted components on the SL1 50 65 11 Ex 2 50B are crafted from high-grade high-grade alloy to maintain physical integrity and resist abrasive wear.
How is this pump mounted for quick inspection and servicing?
For rapid positioning and retrieval, the SL1/50/65/11/Ex/2/50B features a standard guide rail auto-coupling suited for guide rail auto-coupling pedestals.
Need help choosing the right pump?
Our team of pump experts are here to help you find the perfect solution for your application.
- Free expert advice
- Pump sizing & system recommendations
- Fast response — call or email us










