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SKU: 4ZN616/6
Lowara 4ZN616/6 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
The six-stage 4ZN616/6 is configured for borehole installations where greater hydraulic lift is required while retaining the 367 L/Min maximum flow of the ZN6 range. With a maximum head of 73 metres, it provides a practical wet-end configuration for groundwater supply systems.
AISI 316 stainless steel forms the pump-end construction, while the impellers and diffusers use AISI 316L stainless steel and incorporate removable wear rings. The rotating shaft is Duplex stainless steel UNS S 31803, and the replaceable coupling is Duplex stainless steel UNS S 32304. Suspended sand concentrations up to 100 g/m³ are permitted.
When coupled to a C4S submersible motor, the installation supports water temperatures up to 60°C. Hydraulic performance is specified to EN ISO 9906 Grade 3B. The discharge uses the Rp 2 1/2– (65 mm) threaded connection, with a standard 4-inch NEMA motor connection and maximum immersion of 300 metres with a C4S motor.
The microcast ASTM CF-8M (AISI 316 cast) discharge head and lower support include an integrated stainless steel non-return valve. Safety-hook holes provide attachment points for lowering and securing the pump end during installation.
FEATURES
- Six radial stages provide increased lift for groundwater supply.
- AISI 316L impellers and diffusers form the specified hydraulic stages.
- Removable wear rings allow hydraulic clearances to be serviced.
- The Duplex UNS S 31803 shaft supports the rotating assembly.
- The replaceable Duplex UNS S 32304 coupling provides the specified motor connection.
- AISI 316L tie rods and cable guard complete the external construction.
- The microcast discharge arrangement incorporates the non-return valve and lower support.
* 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.
What maximum dynamic head rating can this deep well extraction unit achieve?
Providing excellent vertical lift performance, the 4ZN616/6 attains a maximum dynamic head of approximately 73.6 m from deep well water tables.
What delivery connection thread size is standard and what maximum flow is attained?
Water is transferred out via the Rp 2 1/2" (65 mm) delivery port, through which the 4ZN616-6 supplies a peak flow rate of approximately 367 L/Min in standard 6-inch borehole installations.
How does this borehole pump resist corrosion and particulate erosion underground?
Long-term subterranean durability is achieved by the 4 ZN 616 6 through 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 construction, managing abrasive particles up to 100 g/m³.
What are the electrical specifications and supply voltage requirements for this unit?
Motor coupling requirements for the 4_ZN_616_6 mandate a 4-inch NEMA C4S motor rated at 5.5 kW on 380–415 V, 50 Hz, three-phase pulling 13.2 A, supporting water up to 60°C and immersion depths to 300 meters.
Is a non-return valve incorporated into the outlet head and does it allow horizontal mounting?
Reverse water surges are controlled by an integrated stainless steel non-return valve inside the 4ZN616/6 head, permitting horizontal installation at a minimum recommended 3° incline with the motor positioned lowest.
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