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SKU: 4ZN616/4
Lowara 4ZN616/4 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
For borehole systems requiring a little more hydraulic lift without moving into the higher-stage configurations, the 4ZN616/4 provides a four-stage radial flow pump end with a maximum flow of 367 L/Min. Its 48-metre maximum head makes it suitable for groundwater supply applications requiring dependable vertical lift.
Constructed in AISI 316 stainless steel, the ZN6 pump end uses AISI 316L stainless steel for its impellers and diffusers, with removable wear rings incorporated into the hydraulic stages. The rotating shaft is Duplex stainless steel UNS S 31803 and the replaceable coupling is Duplex stainless steel UNS S 32304. The pump end is specified for water containing suspended sand up to 100 g/m³.
With a C4S submersible motor, operation is supported up to 60°C. Performance is specified to EN ISO 9906 Grade 3B, with discharge through the Rp 2 1/2– (65 mm) threaded outlet. A standard 4-inch NEMA motor connection is provided, and maximum immersion depth is 300 metres when matched with a C4S motor.
The microcast ASTM CF-8M (AISI 316 cast) discharge head and lower support provide the structural discharge arrangement. An integrated stainless steel non-return valve assists with backflow control, while safety-hook holes support borehole installation.
FEATURES
- Four radial stages provide increased lift over the lower-stage configuration.
- AISI 316L impellers and diffusers provide the specified stainless-steel hydraulic construction.
- Removable wear rings allow hydraulic clearances to be serviced.
- The Duplex UNS S 31803 shaft forms the rotating shaft assembly.
- The replaceable Duplex UNS S 32304 coupling provides the specified connection component.
- AISI 316L tie rods and cable guard extend the stainless-steel construction.
- The discharge assembly includes the microcast head, lower support and stainless steel non-return valve.
* Submersible motor sold separately - requires coupling and assembly
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.
Which operating voltage and motor power rating are required to run this borehole unit?
Running the 4ZN616/4 assembly relies on a 4-inch NEMA C4S motor rated at 3 kW powered by 380–415 V, 50 Hz, three-phase drawing 7.64 A, handling fluids up to 60°C and submersion up to 300 meters.
Is an internal check valve fitted to the discharge port and can this unit be laid horizontally?
Fluid column stability during stops is preserved by an integrated stainless steel non-return valve in the 4ZN616-4, while horizontal operation is supported at a minimum recommended 3° incline with the motor lowest.
Can this submersible bore pump achieve reliable vertical elevation from deep wells?
Under challenging vertical extraction duties, the 4 ZN 616 4 develops a maximum dynamic head of approximately 48.9 m, maintaining steady discharge pressure.
What connection size attaches to the top delivery port and what flow is achieved?
Riser pipes join to the top Rp 2 1/2" (65 mm) delivery connection, allowing the 4_ZN_616_4 to pump up to a peak flow rate of approximately 367 L/Min in standard 6-inch borehole installations.
What materials prevent abrasive wear and corrosion inside this borehole pumping unit?
Designed to resist corrosive borehole elements, the 4ZN616/4 combines 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 with high sand passage capacity up to 100 g/m³.
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