{"product_id":"calpeda-4sdp-8-4-w-stainless-steel-4-inch-submersible-bore-pump-agricultural-irrigation","title":"Calpeda 4SDP 8\/4-W Stainless Steel 4\" Submersible Bore Pump for Agricultural Irrigation with Floating Impellers","description":"\u003cp\u003eAgricultural irrigation and rural water systems requiring high-capacity hydraulic delivery from 4-inch wells are the primary application for this submersible pump. It is specifically configured to manage clean liquids containing sand concentrations up to 300 g\/m³ and supports continuous service for large-scale tank filling and irrigation networks.\u003c\/p\u003e\u003cp\u003eA 0.75 kW motor at 415V drives the 4-stage assembly, achieving a maximum head of 23 meters and a peak flow of 220 L\/Min. The mechanical interface conforms to NEMA standards, providing a secure connection point for standardised submersible motors.\u003c\/p\u003e\u003cp\u003eDurable LEXAN floating impellers move axially within each stage to accommodate sand particles, helping to protect the polycarbonate diffusers from wear during high-capacity transfer duty.\u003c\/p\u003e\u003cp\u003eAISI 304 stainless steel forms the external jacket, with a delivery casing incorporating a built-in non-return valve to prevent backflow and reduce water hammer risk. Rated for liquid temperatures up to 35°C, the assembly includes a chrome-nickel steel suction filter and a Class F insulated motor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSpecial radial floating impellers provide enhanced sand handling for borehole environments with high solid content\u003c\/li\u003e\n\u003cli\u003eReinforced polycarbonate diffusers maintain an efficient hydraulic flow path for reduced energy consumption\u003c\/li\u003e\n\u003cli\u003eHigh-flow 4-stage radial hydraulic assembly delivers 23 meters of head for bulk water and irrigation supply\u003c\/li\u003e\n\u003cli\u003eAISI 304 stainless steel external jacket provides resistance to mineral corrosion and structural deformation\u003c\/li\u003e\n\u003cli\u003eIntegrated non-return valve protects the internal hydraulics and motor from backflow and water weight\u003c\/li\u003e\n\u003cli\u003eNEMA-standard coupling ensures compatibility with standardised submersible motors\u003c\/li\u003e\n\u003cli\u003eChrome-nickel steel suction lantern blocks mineral debris and oversized particulates from the intake\u003c\/li\u003e\n\u003cli\u003eClass F insulation and IP68 protection support safe, reliable performance under continuous well immersion\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Calpeda","offers":[{"title":"Default Title","offer_id":50983322484983,"sku":"4SDP 8\/4-W","price":688.16,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/calpeda-4sdp-8-4-w-stainless-steel-4-inch-submersible-bore-pump-agricultural-irrigation.png?v=1785325853","url":"https:\/\/foundationpumps.com.au\/products\/calpeda-4sdp-8-4-w-stainless-steel-4-inch-submersible-bore-pump-agricultural-irrigation","provider":"Foundation Pumps","version":"1.0","type":"link"}