{"product_id":"calpeda-4sdp-8-17-w-stainless-steel-4-inch-submersible-bore-pump-bulk-water-supply","title":"Calpeda 4SDP 8\/17-W Stainless Steel 4\" Submersible Bore Pump for Bulk Water Supply with Floating Impellers","description":"\u003cp\u003eBulk water supply and civil infrastructure requiring large-scale groundwater extraction from 4-inch wells are the primary application for this submersible pump. It processes clean water with suspended sand up to 300 g\/m³ and supports continuous duty for residential utility distribution networks.\u003c\/p\u003e\u003cp\u003eA 3 kW three-phase motor at 415V drives the 17-stage assembly, achieving a peak head of 98 meters and a flow rate of 220 L\/Min. The motor coupling conforms to NEMA standards, providing a standardised mechanical connection for simplified maintenance.\u003c\/p\u003e\u003cp\u003eEach stage incorporates LEXAN floating impellers that move axially to accommodate sand particles, helping to protect the polycarbonate diffusers from wear and supporting consistent operation throughout the unit's service life.\u003c\/p\u003e\u003cp\u003eAISI 304 stainless steel forms the external jacket, with a delivery casing incorporating a built-in non-return valve to protect the hydraulics and motor from backflow and reverse rotation during shutdown. Rated for water up to 35°C, the assembly includes a chrome-nickel steel suction filter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLEXAN radial floating impellers are designed to handle sand while reducing internal mechanical binding risk\u003c\/li\u003e\n\u003cli\u003eHigh-performance polycarbonate diffusers maintain a smooth hydraulic flow path for improved energy efficiency\u003c\/li\u003e\n\u003cli\u003eSeventeen-stage hydraulic configuration delivers 98 meters of head for deep-well recovery and high-flow supply\u003c\/li\u003e\n\u003cli\u003eAISI 304 stainless steel external jacket provides resistance to borehole oxidation and chemical attack\u003c\/li\u003e\n\u003cli\u003eBuilt-in non-return valve protects the internal hydraulics from back-pressure and water hammer\u003c\/li\u003e\n\u003cli\u003eNEMA-standard coupling simplifies field installation and ensures compatibility with various 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 continuous duty in deep, fully submerged boreholes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Calpeda","offers":[{"title":"Default Title","offer_id":50983322648823,"sku":"4SDP 8\/17-W","price":1355.75,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/calpeda-4sdp-8-17-w-stainless-steel-4-inch-submersible-bore-pump-bulk-water-supply.png?v=1785325860","url":"https:\/\/foundationpumps.com.au\/products\/calpeda-4sdp-8-17-w-stainless-steel-4-inch-submersible-bore-pump-bulk-water-supply","provider":"Foundation Pumps","version":"1.0","type":"link"}