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SKU: 92850511
Grundfos SL.56M.320.4.50D.200 Cast Iron Medium-Head Drainage Pump with Open S-Tube Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Designed for permanent submerged installation in drainage systems, the Grundfos SL.56M.320.4.50D.200 handles high-volume wastewater transfer in municipal infrastructure. This cast iron unit holds CE EN12050-1 certification with ROHS and WEEE environmental approvals. It is suitable for centralized collection sumps handling raw effluents containing solids.
A 32 kW 4-pole motor powers the unit at 1490 rpm on a 3 x 415 V supply with a rated current of 65.5 Amps. It achieves a maximum flow up to 15720 L/min and a maximum head up to 32.5 m. The motor is rated for continuous S1 duty, with cooling managed by the surrounding liquid during operation.
The hydraulic system uses an Open S-tube impeller with a 334.5 mm actual diameter for managing untreated wastewater. The nominal duty head is 17.17 m. The design features dual DN 200 connections with DIN flange standards, supporting high-volume wastewater transfer while reducing the risk of clogging in municipal drainage networks.
Construction includes an EN-GJL-250 cast iron pump housing and motor casing with double mechanical shaft seals and integrated PTO sensors for motor protection and monitoring. It is supplied with a 10-metre S1BC4N8-F EMC power cable and an IP68 enclosure suitable for installation depths up to 30 metres.
FEATURES
- Open S-tube impeller design with 334.5 mm diameter for solids handling in municipal drainage.
- Cast iron EN-GJL-250 pump housing and motor casing for durability in permanent submerged service.
- Double mechanical shaft seal arrangement with SiC/SiC primary seal and Silicon Carbide/Carbon secondary seal.
- Integrated PTO sensors for motor protection and monitoring within the windings for safety.
- Supplied with a 10-metre S1BC4N8-F EMC power cable for reliable electrical connection.
- IP68 enclosure suitable for installation depths up to 30 metres and 9 bar maximum operating pressure.
- Class H motor insulation with support for up to 30 starts per hour during continuous S1 duty cycles.
- Compatible with the Grundfos auto-coupling system (96641489) for simplified maintenance access.
IMPORTANT: Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 15720 L/Min |
| Max Head | 32.5 m |
| Power | 32 kW / 415v |
| Rated Current | 65.5 Amps |
| Suitable For | Drainage Systems |
| Body Material | Cast iron |
| Liquid Temperature | Maximum 40°C |
| Inlet Size | 200 mm |
| Outlet Size | 200 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.
What maximum vertical elevation head can this pump achieve?
To overcome vertical elevation resistance, the Grundfos SL.56M.320.4.50D.200 develops a maximum pumping head of approximately 56M.
Does this pump run on standard household power or three-phase power?
Electrical power for the SL.56M.320.4.50D.200 requires a 415 V three-phase connection, driving an efficient 32 kW motor that draws 65.5 Amps.
What maximum particle diameter can safely pass through the casing?
Internal hydraulic clearances in the SL-56M-320-4-50D-200 allow spherical waste up to 71 mm to move through the chamber without lodging.
How high can this pump lift water vertically?
Dynamic lift generated by the SL 56M 320 4 50D 200 reaches a maximum elevation head of approximately 56M across discharge lines.
What is the maximum water flow rate and head pressure of this pump?
For balanced pressure and flow, the SL/56M/320/4/50D/200 provides up to 15720 L/Min in delivery and up to 56M in vertical lift.
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