{"product_id":"lowara-zn855022a3s-stainless-steel-deep-well-8-inch-submersible-bore-pump-semi-axial-flow-impeller","title":"Lowara ZN855-02\/2A-3S Stainless Steel 7.5kW Deep Well 8\" Submersible Bore Pump with Semi-Axial Flow Impeller","description":"\u003cp\u003eConstruction of this 8-inch submersible pump features a two-stage assembly with reduced impeller diameters for specific head matching. This hydraulic design is intended for clean groundwater extraction where precise head and flow ratios are required for the distribution network. The unit is suitable for vertical installation in deep wells or horizontal deployment in storage tanks provided an inclination is maintained. This configuration serves municipal water supply projects needing specific pressure thresholds.\u003c\/p\u003e\u003cp\u003eThe unit achieves performance characteristics including a maximum head of 42.9 m and a maximum flow rate of 1216 L\/Min. Electrical power is provided by a 7.5 kW motor drawing a rated current of 17 Amps from a 415v three-phase supply. The semi-axial flow design is optimized for high delivery efficiency through its its 125 mm discharge outlet. All performance data is verified for liquids with a density of 1.0 kg\/dm³ at a rotation speed of 2900 rpm.\u003c\/p\u003e\u003cp\u003eWetted parts such as the delivery casing, suction support, and internal diffusers are constructed from cast AISI 316 Stainless Steel. The motor is also made of 316 Stainless Steel and is rated for operation in liquids at temperatures up to 25°C. The system handles water with suspended sand concentrations reaching 100 g\/m³ through the use of technopolymer POM-C wear rings. A duplex stainless steel shaft is used to transmit power to the hydraulic stages.\u003c\/p\u003e\u003cp\u003eImmersion depth for this electric pump is rated to a maximum of 350 meters to suit deep borehole extraction needs. The overall diameter is 198 mm including motor cable covers, making it compatible with standard 8-inch borehole well casings. A built-in non-return valve with a stainless steel spring protects the internal components from backflow during shutdown. Internal clearance is managed by EPDM 70 bearing bushes supporting the shaft assembly during industrial service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eA stainless steel suction strainer excludes large particles from entering the hydraulic stages.\u003c\/li\u003e\n\u003cli\u003eA duplex stainless steel taperlock system secures the impellers to the shaft for torque transfer.\u003c\/li\u003e\n\u003cli\u003eEPDM 70 bearing bushes support the pump shaft assembly and handle mechanical loads during rotation.\u003c\/li\u003e\n\u003cli\u003eInternal technopolymer POM-C wear rings maintain hydraulic clearances and reduce internal friction.\u003c\/li\u003e\n\u003cli\u003eMechanical connection of the 8-inch motor follows NEMA standards for industrial system compatibility.\u003c\/li\u003e\n\u003cli\u003eStainless steel cable covers provide mechanical protection for motor power leads along the casing.\u003c\/li\u003e\n\u003cli\u003eThe integrated non-return valve features a stainless steel spring to prevent fluid backflow.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lowara","offers":[{"title":"Default Title","offer_id":51004072263927,"sku":"ZN855-02\/2A-3S","price":16958.1,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/lowara-zn855022a3s-stainless-steel-deep-well-8-inch-submersible-bore-pump-semi-axial-flow-impeller.png?v=1786098037","url":"https:\/\/foundationpumps.com.au\/products\/lowara-zn855022a3s-stainless-steel-deep-well-8-inch-submersible-bore-pump-semi-axial-flow-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}