{"product_id":"calpeda-4sdp-6-7-w-stainless-steel-4-inch-submersible-bore-pump-bulk-water-supply","title":"Calpeda 4SDP 6\/7-W Stainless Steel 4\" Submersible Bore Pump for Bulk Water Supply with Floating Impellers","description":"\u003cp\u003eLarge-scale residential distribution and agricultural systems requiring high-volume fluid transfer from 4-inch well sources benefit from this submersible pump. It operates safely in clean liquids containing suspended sand up to 150 g\/m³ and supports long-term service for bulk water transfer projects.\u003c\/p\u003e\u003cp\u003eA 0.75 kW three-phase motor at 415V drives the 7-stage assembly, achieving a maximum head of 36 meters and a peak flow of 160 L\/Min. The mechanical interface conforms to NEMA standards, providing a reliable connection point for standardised submersible motors.\u003c\/p\u003e\u003cp\u003eDurable LEXAN floating impellers move axially within the stage casing, helping to prevent motor seizure when sand particles are present in the water. Hydraulic performance remains consistent even when pumping water with moderate sand concentrations.\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 pump stages from backflow and water column weight during shutdown. Rated for immersion in liquids up to 35°C, the assembly features Class F motor insulation and a chrome-nickel steel suction lantern with an integrated fine 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 seized motor risk\u003c\/li\u003e\n\u003cli\u003eReinforced polycarbonate diffusers maintain a smooth hydraulic flow path for improved energy efficiency\u003c\/li\u003e\n\u003cli\u003eSeven-stage radial hydraulic design provides 36 meters of head for bulk water supply and irrigation\u003c\/li\u003e\n\u003cli\u003eAISI 304 stainless steel external jacket provides structural integrity and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eIntegrated non-return valve prevents pipe drainage and reduces water hammer risk\u003c\/li\u003e\n\u003cli\u003eNEMA-standard motor coupling enables pairing with various brands of 4-inch submersible motors\u003c\/li\u003e\n\u003cli\u003eChrome-nickel steel suction lantern with fine-mesh filter prevents debris entry and protects components\u003c\/li\u003e\n\u003cli\u003eClass F insulation and IP68 protection support safe, reliable motor operation under full immersion\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Calpeda","offers":[{"title":"Default Title","offer_id":50983322255607,"sku":"4SDP 6\/7-W","price":671.33,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/calpeda-4sdp-6-7-w-stainless-steel-4-inch-submersible-bore-pump-bulk-water-supply.png?v=1785325841","url":"https:\/\/foundationpumps.com.au\/products\/calpeda-4sdp-6-7-w-stainless-steel-4-inch-submersible-bore-pump-bulk-water-supply","provider":"Foundation Pumps","version":"1.0","type":"link"}