{"product_id":"lowara-4zn646-2-3-stainless-steel-3kw-deep-well-submersible-pump-with-radial-flow-impeller","title":"Lowara 4ZN646\/2-3 Stainless Steel 3kW Deep Well Submersible Pump with Radial Flow Impeller","description":"\u003cp\u003eLarge-scale irrigation networks and municipal water supply systems require pumps capable of moving substantial volumes from deep boreholes. The Lowara 4ZN646\/2-3 meets these demands with its 6-inch wet end and 4-inch motor configuration, processing up to 1000 L\/Min while maintaining reliable operation in continuous-duty applications. The multi-stage hydraulic assembly delivers stable performance across varying demand conditions.\u003c\/p\u003e\u003cp\u003eCorrosion resistance is achieved through AISI 316 stainless steel construction across every wetted component, protecting against aggressive groundwater chemistry. The impeller and diffuser arrangement incorporates a removable wear ring for straightforward servicing, while the integrated non-return valve prevents water column backflow when the motor stops. The suction strainer limits suspended sand ingress to 100 grams per cubic metre, extending internal component life.\u003c\/p\u003e\u003cp\u003ePowered by a 3 kW three-phase motor at 415V, this pump draws 7.64 Amps under normal operation. Maximum head reaches 20.2 metres at shut-off, with flow capacity of 1000 L\/Min through the 80 mm discharge port. Performance testing complies with EN ISO 9906 Grade 3B tolerances, ensuring predictable operation across the duty range.\u003c\/p\u003e\u003cp\u003eClass F insulation and IP68 enclosure rating support installation depths up to 300 metres. The Duplex stainless steel shaft and AISI 316L tie rods provide mechanical strength for continuous submerged service. NEMA motor coupling compatibility simplifies assembly, and the discharge head incorporates safety hook holes for secure lowering during installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e4Z = 6\" wet end with 4\" Lowara motor\u003c\/strong\u003e\u003c\/p\u003e\u003cb\u003eFEATURES\u003c\/b\u003e\u003cul\u003e\n\u003cli\u003eDelivery port features integrated holes for safety hooks\u003c\/li\u003e\n\u003cli\u003eDrive shaft is manufactured from Duplex stainless steel UNS S 31803\u003c\/li\u003e\n\u003cli\u003eExternal tie rods are constructed from AISI 316L stainless steel\u003c\/li\u003e\n\u003cli\u003eIncludes a replaceable coupling component for mechanical assembly\u003c\/li\u003e\n\u003cli\u003eIntegrated intake strainer utilizes AISI 316L stainless steel\u003c\/li\u003e\n\u003cli\u003eLower motor support complies with standard NEMA coupling specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e* Motor and pump supplied separately - requires assembly\u003c\/p\u003e","brand":"Lowara","offers":[{"title":"Default Title","offer_id":50998499737847,"sku":"4ZN646\/2-3","price":4658.4,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/lowara-4zn646-2-3-stainless-steel-3kw-deep-well-submersible-pump-with-radial-flow-impeller.png?v=1785921726","url":"https:\/\/foundationpumps.com.au\/products\/lowara-4zn646-2-3-stainless-steel-3kw-deep-well-submersible-pump-with-radial-flow-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}