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SKU: ZN855-05/2A-3S
Lowara ZN855-05/2A-3S Stainless Steel 22kW Deep Well 8" Submersible Bore Pump with Semi-Axial Flow Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
Installation variability characterises this 8-inch range submersible pump, which supports both vertical deep-well mounting and horizontal tank deployment. It features a five-stage hydraulic end with dual reduced impellers to match specific head requirements while maintaining large flow capacities. The assembly requires a minimum recommended incline when installed horizontally to ensure motor cooling and hydraulic stability. This configuration serves municipal networks and agricultural systems requiring precise pressure thresholds.
The unit achieves performance characteristics including a maximum head of 123.1 m and peak flow of 1333 L/Min via the 125 mm discharge outlet. Equipped with a 22 kW motor for 415v three-phase power, the unit draws a rated current of 47.3 Amps during operation. The semi-axial flow design achieves high efficiency with a nominal flow rate of 55 m³/hr for water transfer tasks. All metrics are validated for clean water at a rotation speed of 2900 rpm.
Wet end components are fabricated from cast AISI 316 Stainless Steel for wetted parts including the impellers, diffusers, and delivery casing. The motor is also made from 316 Stainless Steel and is rated for contact with liquids up to 25°C. The system handles water with suspended sand levels of 100 g/m³ through its five-stage hydraulic arrangement. A duplex stainless steel shaft and coupling are used to transmit power through the hydraulic end to manage the generated torque.
This electric pump supports immersion depths of 350 meters and features a non-return valve built into the head to prevent fluid backflow. Physical dimensions include a 198 mm maximum overall diameter, fitting within standard 8-inch well casings. Internal clearances are maintained by EPDM 70 bearing bushes and technopolymer wear rings supporting the duplex shaft assembly. This design is intended for heavy-duty industrial extraction and municipal water supply applications.
FEATURES
- A stainless steel suction strainer excludes large particles from entering the hydraulic stages.
- 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 duplex stainless steel taperlock system secures the impellers to the shaft for torque transfer.
- 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.
- Stainless steel cable covers provide mechanical protection for motor power leads along the casing.
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 three-phase 415V circuit capacity is needed for this 22 kW / 415v deep-well motor?
The 415V three-phase electrical supply for the ZN855-05/2A-3S supports continuous operation of its 22 kW / 415v motor.
Is this 123.1 m total dynamic head capability verified under standard test conditions?
Standard ISO 9906 grade testing verifies that the ZN855-05-2A-3S reaches a maximum dynamic head of 123.1 m.
Is this 1333 L/Min flow capacity sufficient for industrial water supply networks?
Industrial water networks receive up to 1333 L/Min from the ZN855 05 2A 3S through its standard 125 mm discharge connection.
What metal alloy properties protect this deep-well pump against underground rust?
Underground rust resistance in the ZN855_05_2A_3S is guaranteed by its high-grade cast AISI 316 stainless steel wet end components and 316 motor construction.
Can this deep-well pump be installed horizontally in municipal booster plants?
Municipal pressure boosting stations deploy the ZN855-05/2A-3S horizontally in transfer tanks with proper cooling sleeves.
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