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SKU: 4ZN631/4-3
Lowara 4ZN631/4-3 Stainless Steel 5.5kW Deep Well 6" Submersible Bore Pump with Radial Flow Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
Groundwater lowering for construction dewatering demands pumps that sustain high flow rates under continuous operation. The Lowara 4ZN631/4-3 processes 667 L/Min through a 6-inch wet end with 4-inch motor connection. Its radial flow impeller arrangement delivers efficient hydraulic performance for water table management.
Shaft protection comes from Duplex stainless steel UNS S 31803, providing torsional strength during extended operation. The suction strainer limits suspended sand to 100 grams per cubic metre, safeguarding internal clearances. A removable wear ring on the impeller allows maintenance access. The integrated non-return valve prevents reverse flow during shutdown periods.
A 415V three-phase motor drawing 12.6 Amps drives the pump to 57.9 metres shut-off head. Flow capacity is 667 L/Min through the Rp 3 discharge port. Performance complies with EN ISO 9906 Grade 3B tolerances.
Class F insulation with IP68 rating supports immersion to 300 metres. AISI 316L tie rods provide additional structural reinforcement. Safety hook holes and NEMA coupling simplify installation and retrieval.
4Z = 6" wet end with 4" Lowara motor
FEATURES- Integrated safety hook attachment points on discharge head
- Duplex stainless steel UNS S 31803 drive shaft
- AISI 316L stainless steel external tie rods
- Replaceable coupling for mechanical assembly
- Suction strainer with AISI 316L mesh
- NEMA-standard lower motor support
* Motor and pump supplied separately - requires assembly
SPECIFICATIONS
| Max Flow | 667 L/Min |
| Max Head | 57.9 m |
| Power | 5.5 kW / 415v |
| Rated Current | 12.6 Amps |
| Suitable For | Groundwater Extraction |
| Body Material | AISI 316 Stainless Steel |
| Liquid Temperature | -10°C to 60°C |
| Outlet Size | 80 mm |
| Warranty | 12 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 electrical current is drawn by the motor during standard operation?
Operating on a 415V three-phase supply, the 4ZN631/4-3 motor draws 12.6 Amps.
What torsional strength features protect the drive shaft?
Drive shaft construction in the 4ZN631-4-3 utilizes Duplex stainless steel UNS S 31803 for high torsional strength.
What maximum shut-off head is delivered by this unit?
The 4ZN631 4 3 achieves a shut-off head of 57.9 metres with a maximum flow capacity of 667 L/Min.
What enclosure rating and maximum immersion depth apply?
With IP68 protection and Class F insulation, the 4ZN631_4_3 supports immersion depths up to 300 metres.
How does the discharge head assist with borehole installation?
Integrated safety hook attachment points on the discharge head of the 4ZN631/4-3 simplify borehole deployment and retrieval.
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