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SKU: 4ZN622/7-3
Lowara 4ZN622/7-3 Stainless Steel 7.5kW Deep Well 6" Submersible Bore Pump with Radial Flow Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
Deep borehole installations requiring high flow and corrosion resistance are where the 4ZN622/7-3 performs best, providing dependable water supply from aggressive groundwater sources. It is suitable for permanent vertical installation in 6-inch boreholes to provide a high-volume source for irrigation, pressure boosting, and distribution networks. The unit handles clean water environments where suspended sand particles do not exceed 100 g/m³ during standard operation.
Constructed from AISI 316 Stainless Steel, the housing surrounds internal components designed for aggressive groundwater. The radial centrifugal impeller, manufactured from AISI 316L stainless steel, processes solids up to 2 mm in the fluid stream. The unit weighs 51 kg and operates in liquids from -10°C to 60°C. Every wetted internal surface features corrosion-resistant alloys to ensure technical consistency in corrosive groundwater sites.
The 7.5 kW motor operates on a 415v supply with a rated current of 17.9 Amps. The pump achieves a maximum head of 95.1 m and a maximum flow of 500 L/Min through a 65 mm discharge outlet. Multistage radial hydraulics provide efficient water delivery throughout the operating range. Connection is made through Rp 2 1/2-inch threads located on the microcast head.
The pump features a duplex stainless steel shaft protected by shaft sleeves and tungsten carbide bushings. An integrated stainless steel non-return valve prevents backflow, while removable wear rings simplify servicing. The assembly supports installation depths up to 300 meters with compatible 4-inch C4S motors. Discharge ports include microcast holes for safety hook attachment to facilitate secure installation in deep borehole sites.
4Z = 6" wet end with 4" Lowara motor
Features
- Microcast stainless steel discharge head and motor support components.
- Integrated high-grade stainless steel non-return valve for backflow prevention.
- Radial centrifugal impellers manufactured from AISI 316L stainless steel.
- Removable stainless steel wear rings for internal hydraulic renewal.
- Pump shaft manufactured from duplex stainless steel for mechanical stability.
- Internal protection provided by stainless steel shaft sleeves and bushings.
- Suitable for continuous vertical installation in 6-inch boreholes.
- Maximum external diameter of 142 mm including the integrated cable guard.
* Motor and pump supplied separately - requires assembly
SPECIFICATIONS
| Max Flow | 500 L/Min |
| Max Head | 95 m |
| Power | 7.5 kW / 415v |
| Rated Current | 17.9 Amps |
| Suitable For | Bore Water Supply |
| Body Material | AISI 316 Stainless Steel |
| Liquid Temperature | Maximum 60°C |
| Outlet Size | 65 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.
How much head can this 7.5 kW radial flow pump generate?
The 4ZN622/7-3 delivers an impressive maximum head of 95.1 metres with flow rates up to 500 L/Min.
What is the operating current of this 7.5 kW three-phase motor?
Connected to a 415 V three-phase supply, the 7.5 kW motor of the 4ZN-622-7-3 draws 17.9 Amps.
What size solid particulates can safely pass through the radial impellers?
The radial centrifugal impellers in the 4ZN622 7 3 process solids up to 2 mm and sand concentrations up to 100 g/m³.
What is the total weight of this 6-inch high-flow pump?
The 4ZN622_7_3 has an assembled weight of 51 kg with microcast stainless steel head and motor supports.
Does this model prevent water hammer when the motor shuts off?
An integrated high-grade stainless steel non-return valve inside the 4ZN622/7-3 arrests reverse flow and eliminates water hammer.
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