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SKU: 4ZN612/15
Lowara 4ZN612/15 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 boreholes requiring higher hydraulic lift together with corrosion-resistant stainless-steel construction, the 4ZN612/15 provides a fifteen-stage radial flow pump end. Its configuration is suited to deep groundwater pumping while retaining the ZN6 maximum flow rating of 275 L/Min.
AISI 316 stainless steel forms the ZN6 pump-end construction, while the impellers and diffusers are AISI 316L stainless steel and incorporate removable wear rings. The rotating shaft uses Duplex stainless steel UNS S 31803, with a replaceable Duplex stainless steel UNS S 32304 coupling. The pump end permits suspended sand up to 100 g/m³ and, when coupled with a C4S motor, supports water temperatures up to 60°C.
The 4ZN612/15 reaches a maximum head of 170 metres, with hydraulic performance specified to EN ISO 9906 Grade 3B. The standard Rp 2 1/2– (65 mm) threaded delivery port provides the water outlet, while a standard 4-inch NEMA motor connection allows coupling with a C4S submersible motor. Maximum immersion depth is 300 metres with C4S motors.
For borehole installation, the microcast ASTM CF-8M (AISI 316 cast) discharge head and lower support incorporate an integrated stainless steel non-return valve. Safety-hook holes are provided in the discharge head to assist in lowering and securing the assembly at installation depth.
FEATURES
- The fifteen-stage arrangement delivers the substantially higher hydraulic lift required by high-head installations.
- AISI 316L hydraulic components provide the specified stainless-steel construction for the impellers and diffusers.
- Removable wear rings allow the hydraulic stages to retain a serviceable clearance arrangement.
- The Duplex UNS S 31803 shaft provides the specified rotating-shaft material.
- The replaceable Duplex UNS S 32304 coupling provides the specified coupling construction.
- AISI 316L external tie rods continue the stainless-steel construction through the pump-end assembly.
- The integrated stainless steel non-return valve is housed within the microcast discharge assembly.
* 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.
Can the Lowara 4ZN612 15 handle dirty or gritty bore water?
The pump is designed for the documented sand/particle conditions; do not exceed the manufacturer's stated limits. The impellers are built from heavy-duty materials designed to resist abrasion and sediment wear.
Can I run the Lowara 4ZN612-15 off a farm generator or solar inverter?
Yes, as long as your generator matches its Continuous-Duty Electric Motor requirement. It's built for continuous duty on 415V three-phase or standard rural power setups.
Is the Lowara 4ZN612_15 safe to use in mineral-heavy or salty groundwater?
The pump uses stainless-steel wetted components; suitability for saline or aggressive water should be confirmed against the manufacturer's liquid-compatibility limits.
What pipe size connects to the Lowara 4ZN612/15 discharge port?
It fits a standard 65 mm outlet connection. Using the right pipe diameter ensures you get the full 275 L/Min discharge flow.
Need help choosing the right pump?
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