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SKU: ZN646/10
Lowara ZN646/10 Stainless Steel Deep Well 6" Submersible Bore Pump (Wet End Only) with Radial Flow Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
Providing standard hydraulic performance, the Lowara ZN646/10 is a standalone borehole wet end within the Z6 Series range. It is essential to pair this standalone pump end with a compatible 13 kW electric motor for deep-well water supply. The physical structure is designed for standard vertical placement inside standard 6-inch casings. It is suitable for pressure boosting and dewatering networks and water distribution setups.
To support long-term physical stability during operation, the structural sleeve and discharge head are engineered from cast AISI 316 Stainless Steel. The multi-stage centrifugal hydraulic assembly consists of 10 stages, each incorporating an AISI 316L stainless steel radial impeller. The integrated radial impellers are designed to limit abrasive wear from sand particles, supporting water containing up to 100 g/m³ of suspended sand.
Once paired with its designated 13 kW electric motor (nominal current rating of 28.1 Amps), the coupled assembly achieves up to 103 m maximum head. This multi-stage hydraulic wet end generates a maximum flow of 1,000 L/Min through its Rp 80 mm threaded connection. All performance parameters are in accordance with manufacturer technical specifications.
The pump has a maximum external diameter of 142 mm for installation inside standard 6-inch borehole wells. Maximum pump immersion depth is 300 m when used with C4S motors and 350 m when used with L6W motors. The lower support bracket incorporates a standard 6" NEMA-compliant mount for simple mechanical motor integration. Safe coupling requires correct mechanical alignment of the pump shaft and the motor shaft during mechanical coupling.
FEATURES
- Constructed entirely from AISI 316 Stainless Steel for corrosion protection and structural durability.
- Equipped with 10 multi-stage radial centrifugal impellers manufactured from AISI 316L stainless steel.
- Includes an integrated spring-loaded AISI 316 non-return valve in the discharge head to prevent backflow and maintain system pressure.
- Features a high-strength Duplex Stainless Steel pump shaft and sleeves.
- Equipped with a standard 6" NEMA-compliant motor support bracket and coupling for easy motor integration.
- ErP/Ecodesign compliant with a Minimum Efficiency Index (MEI) of 0.40 or higher, optimizing energy performance.
- Designed with a compact 142 mm maximum external diameter for secure installation inside 6-inch deep well boreholes.
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.
Will this borehole pump withstand mineral-laden water and suspended grit underground?
The AISI 316 stainless steel pump end, AISI 316L stainless steel impellers and diffusers with removable wear rings, Duplex UNS S 31803 shaft, and Duplex UNS S 32304 coupling design of the ZN646/10 provides exceptional resistance to oxidation, safely passing suspended borehole sand up to 100 g/m³.
What electrical power input and supply voltage does this borehole pump demand?
Motor coupling requirements for the ZN646-10 mandate a 6-inch NEMA L6W motor rated at 13 kW on 380–415 V, 50 Hz, three-phase pulling 28.1 A, supporting water up to 35°C and immersion depths to 350 meters.
Does this submersible unit include an internal non-return valve for horizontal operation?
Internal piping safeguards in the ZN 646 10 feature an integrated stainless steel non-return valve in the delivery head, enabling horizontal mounting at a minimum recommended 3° incline with the motor positioned lowest.
What is the maximum vertical elevation pressure delivered by this deep well pump?
Pumping from subterranean water tables, the ZN_646_10 generates a peak dynamic head of approximately 103 m to maintain steady discharge flow.
What thread diameter attaches to the top outlet and what is the maximum delivery output?
Connecting the delivery riser to the Rp 3" (80 mm) top outlet allows the ZN646/10 to pump a peak flow volume of approximately 1000 L/Min within standard 6-inch borehole installations.
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