{"product_id":"calpeda-4sdp-8-23-w-stainless-steel-4-inch-submersible-bore-pump-rural-water-supply","title":"Calpeda 4SDP 8\/23-W Stainless Steel 4\" Submersible Bore Pump for Rural Water Supply with Floating Impellers","description":"\u003cp\u003eRural water supply and extensive civil distribution requiring high-head extraction from deep 4-inch borehole sources benefit from this high-capacity submersible pump. It handles clean water with sand concentrations up to 300 g\/m³ and supports continuous duty for pressurised storage networks.\u003c\/p\u003e\u003cp\u003eA 4 kW three-phase motor at 415V drives the 23-stage assembly, achieving a maximum head of 134 meters and a peak flow of 220 L\/Min. The mechanical interface conforms to NEMA standards, ensuring a secure connection to high-output 4-inch submersible motors.\u003c\/p\u003e\u003cp\u003eAxial movement of the LEXAN floating impellers within each stage helps to accommodate sand particles and protect the polycarbonate diffusers from wear. Consistent operation is supported across the performance range.\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 motor from reverse rotation and water column weight 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 preventing internal wear and binding\u003c\/li\u003e\n\u003cli\u003eReinforced polycarbonate diffusers reduce turbulence and improve system energy efficiency\u003c\/li\u003e\n\u003cli\u003eTwenty-three-stage configuration provides 134 meters of head for high-lift bulk water distribution\u003c\/li\u003e\n\u003cli\u003eAISI 304 stainless steel external jacket provides resistance to mineral corrosion and borehole stress\u003c\/li\u003e\n\u003cli\u003eBuilt-in non-return valve prevents column drainage and protects the motor from reverse rotation\u003c\/li\u003e\n\u003cli\u003eNEMA-standard coupling simplifies installation and ensures compatibility with various submersible borehole motors\u003c\/li\u003e\n\u003cli\u003eChrome-nickel steel suction lantern shields internal components from oversized solid particulates\u003c\/li\u003e\n\u003cli\u003eClass F insulation and IP68 protection support safe, reliable performance under full well immersion\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Calpeda","offers":[{"title":"Default Title","offer_id":50983322681591,"sku":"4SDP 8\/23-W","price":1642.8,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/calpeda-4sdp-8-23-w-stainless-steel-4-inch-submersible-bore-pump-rural-water-supply.png?v=1785325862","url":"https:\/\/foundationpumps.com.au\/products\/calpeda-4sdp-8-23-w-stainless-steel-4-inch-submersible-bore-pump-rural-water-supply","provider":"Foundation Pumps","version":"1.0","type":"link"}