Roll over image to zoom
SKU: ZN855-07/2A-3S
Lowara ZN855-07/2A-3S Stainless Steel 30kW Deep Well 8" Submersible Bore Pump with Semi-Axial Flow Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
Hydraulic design principles utilizing a seven-stage configuration characterize this 8-inch submersible pump intended for industrial lifting. Two reduced impellers are included to match specific lift requirements of borehole sites while maintaining a high flow capacity for the system. The assembly supports vertical borehole installation and horizontal mounting in storage tanks with a 3-degree minimum incline. This model provides the robustness required for municipal networks needing specific groundwater delivery.
Technical characteristics for this model include a maximum head of 177.1 m and a flow capacity of 1216 L/Min through the 125 mm outlet. Electrical specifications feature a 30 kW motor drawing a rated current of 63.8 Amps from a 415v three-phase supply. Efficiency is achieved through a semi-axial hydraulic assembly providing high-efficiency lifting from deep underground sources at 2900 rpm. All performance values are calculated for liquids with a density of 1.0 kg/dm³.
Wetted parts such as the delivery casing, suction support, and internal diffusers are constructed from cast AISI 316 Stainless Steel. The motor is also constructed from 316 Stainless Steel and is rated for contact with liquids up to 25°C during continuous service. The system processes water with suspended sand levels of 100 g/m³ through its seven-stage configuration. A duplex stainless steel shaft and coupling are used to transmit power to the hydraulic end to manage torque.
The electric pump is rated for immersion depths reaching 350 meters below the surface in deep borehole well environments. Physical dimensions include a 198 mm maximum overall diameter, fitting within standard borehole casings including the dual motor cable protection. A non-return valve with a stainless steel spring is built into the delivery head to prevent fluid backflow. Internal wear is managed by EPDM 70 bearing bushes and technopolymer wear rings supporting the duplex shaft.
FEATURES
- Stainless steel cable covers provide mechanical protection for motor power leads along the casing.
- A duplex stainless steel taperlock system secures the impellers to the shaft for torque transfer.
- Internal technopolymer POM-C wear rings maintain hydraulic clearances and reduce internal friction.
- Mechanical connection of the 8-inch motor follows NEMA standards for industrial system compatibility.
- A stainless steel suction strainer excludes large particles from entering the hydraulic stages.
- EPDM 70 bearing bushes support the pump shaft assembly and handle mechanical loads during rotation.
- The integrated non-return valve features a stainless steel spring to prevent fluid backflow.
SPECIFICATIONS
| Max Flow | 1216 L/Min |
| Max Head | 177.1 m |
| Power | 30 kW / 415v |
| Rated Current | 63.8 Amps |
| Suitable For | Bore Water Distribution |
| Body Material | AISI 316 Stainless Steel |
| Liquid Temperature | Maximum 25°C |
| Outlet Size | 125 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.
Is a 415V supply mandatory to achieve full output from this 30 kW / 415v bore unit?
Full motor output for the ZN855-07/2A-3S is achieved when supplied with 415V three-phase electrical power (30 kW / 415v).
What total pressure head can this submersible assembly develop in deep wells?
Immersion in deep boreholes allows the ZN855-07-2A-3S to generate up to 177.1 m of vertical dynamic pressure head.
What discharge connection dimensions match the 1216 L/Min output of this pump?
Riser pipe connections matching the 125 mm discharge port of the ZN855 07 2A 3S enable maximum flow delivery of 1216 L/Min.
Is this pump assembly protected against pitting when exposed to brackish water?
Pitting protection during brackish water exposure is delivered by the ZN855_07_2A_3S using its cast AISI 316 stainless steel wet end components and 316 motor construction.
How does the built-in check valve handle fluid column weight when power cuts out?
Heavy fluid column backpressure is safely contained by the ZN855-07/2A-3S check valve upon motor shutdown.
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