{"product_id":"calpeda-4sdp-4-18-w-stainless-steel-4-inch-submersible-bore-pump-household-water-supply","title":"Calpeda 4SDP 4\/18-W Stainless Steel 4\" Submersible Bore Pump for Household Water Supply with Floating Impellers","description":"\u003cp\u003ePressure systems and rural utilities requiring significant lift heights are well served by this high-capacity submersible pump from 4-inch borehole sources. It handles clean liquids containing sand up to 150 g\/m³ and supports continuous service for high-volume pressurised networks.\u003c\/p\u003e\u003cp\u003eA 1.5 kW three-phase motor at 415V drives the 18-stage assembly, achieving a maximum head of 113 meters and a peak flow of 100 L\/Min. The mechanical interface conforms to NEMA standards, providing a secure connection to high-performance submersible borehole 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. This design supports consistent operation over years of groundwater recovery service.\u003c\/p\u003e\u003cp\u003eAISI 304 stainless steel forms the external jacket, with a chrome-nickel steel delivery casing incorporating a built-in non-return valve to prevent water column drainage and motor reverse rotation during shutdown. Rated for water up to 35°C, the assembly includes a chrome-nickel steel suction lantern and a Class F insulated motor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLEXAN radial floating impellers accommodate sand while reducing internal mechanical seizure risk\u003c\/li\u003e\n\u003cli\u003eReinforced polycarbonate diffusers reduce turbulence and improve system energy efficiency\u003c\/li\u003e\n\u003cli\u003eEighteen-stage radial configuration provides 113 meters of head for high-lift rural 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 protects the internal hydraulics from back-pressure and water hammer\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 and filter provide a barrier against mineral debris\u003c\/li\u003e\n\u003cli\u003eClass F insulation and IP68 protection support reliable performance under full well immersion\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Calpeda","offers":[{"title":"Default Title","offer_id":50983322124535,"sku":"4SDP 4\/18-W","price":1182.78,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/calpeda-4sdp-4-18-w-stainless-steel-4-inch-submersible-bore-pump-household-water-supply.png?v=1785325834","url":"https:\/\/foundationpumps.com.au\/products\/calpeda-4sdp-4-18-w-stainless-steel-4-inch-submersible-bore-pump-household-water-supply","provider":"Foundation Pumps","version":"1.0","type":"link"}