Roll over image to zoom
SKU: ZN646/3-3
Lowara ZN646/3-3 Stainless Steel 4kW Deep Well 6" Submersible Pump with Radial Flow Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
Municipal water supply networks and large-scale agricultural irrigation systems benefit from pumps that combine high flow capacity with energy efficiency. The Lowara ZN646/3-3 features a 6-inch wet end paired with a 6-inch motor, delivering 1000 L/Min for demanding water transfer applications. The hydraulic stages maintain stable performance across varying duty cycles.
Corrosion resistance is achieved through all-stainless steel construction using AISI 316 material throughout the wet end, providing superior protection in aggressive groundwater environments. The impeller and diffuser arrangement is equipped with a removable wear ring, simplifying maintenance and reducing downtime. The integrated non-return valve prevents reverse flow, while the suction strainer limits sand ingress to 100 grams per cubic metre.
Operating on a 415V three-phase supply, the 4 kW motor draws 9.89 Amps and delivers 31 metres of shut-off head. Maximum flow capacity is 1000 L/Min through the 80 mm discharge outlet. Performance testing to EN ISO 9906 Grade 3B ensures reliable operation across the full duty range.
Submersion depths up to 350 metres are supported by Class F insulation and IP68 protection. The Duplex stainless steel shaft provides mechanical strength for continuous operation, while AISI 316L tie rods offer additional structural support. NEMA motor compatibility simplifies assembly, and safety hook holes on the discharge head facilitate installation.
Z = 6" wet end with 6" Lowara L6C motor
FEATURES- Discharge head features pre-drilled holes for safety hook attachment
- Shaft utilizes Duplex stainless steel UNS S 31803 metallurgy
- Bracing tie rods are built from AISI 316L stainless steel
- Mechanical coupling component is replaceable for standard servicing
- Suction strainer uses AISI 316L stainless steel mesh
- Flange assembly conforms to standard NEMA motor connections
* Motor and pump supplied separately - requires assembly
SPECIFICATIONS
| Max Flow | 1000 L/Min |
| Max Head | 31 m |
| Power | 4 kW / 415v |
| Rated Current | 9.89 Amps |
| Suitable For | Municipal Water Supply |
| Body Material | Stainless Steel |
| Liquid Temperature | Maximum 35°C |
| Outlet Size | 80 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.
What shut-off head performance does this 6-inch motor unit offer?
The ZN646/3-3 delivers 31 metres of shut-off head with a flow capacity of 1000 L/Min.
What maximum immersion depth is allowed for this pump assembly?
Submersion depths up to 350 metres are supported by the ZN646-3-3 with IP68 protection.
What power supply and current draw are required?
Operating on a 415V three-phase supply, the 4 kW motor of the ZN646 3 3 draws 9.89 Amps.
What material is selected for all wetted components?
All wetted components on the ZN646_3_3 are constructed from corrosion-resistant AISI 316 stainless steel.
Are safety hook attachment holes included on the discharge port?
Discharge head construction on the ZN646/3-3 features pre-drilled holes for safety hook attachment.
Need help choosing the right pump?
Our team of pump experts are here to help you find the perfect solution for your application.
- Free expert advice
- Pump sizing & system recommendations
- Fast response — call or email us