{"product_id":"calpeda-4sdp-4-7-w-stainless-steel-4-inch-submersible-bore-pump-water-transfer","title":"Calpeda 4SDP 4\/7-W Stainless Steel 4\" Submersible Bore Pump for Water Transfer with Floating Impellers","description":"\u003cp\u003eHigh-volume fluid transfer for civil installations and residential utilities is the primary application for this submersible pump from borehole sources. It operates safely in clean liquids containing suspended sand up to 150 g\/m³ and supports long-term service for tank filling and multi-story building distribution.\u003c\/p\u003e\u003cp\u003eA 0.55 kW motor at 415V drives the 7-stage assembly, achieving a peak head of 43 meters and a flow rate of 100 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 against polycarbonate diffusers, helping to prevent seizure when sand is present in the water. This design preserves the hydraulic characteristics of the pump 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 column drainage and motor reverse rotation. Rated for liquid temperatures up to 35°C, the unit 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 binding risk\u003c\/li\u003e\n\u003cli\u003eReinforced polycarbonate diffusers enhance fluid velocity and reduce operational energy consumption\u003c\/li\u003e\n\u003cli\u003eSeven-stage hydraulic configuration provides 43 meters of head for high-flow domestic and civil water 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\u003eNon-return valve prevents pipe drainage and reduces water hammer risk\u003c\/li\u003e\n\u003cli\u003eNEMA-standard motor coupling enables flexible pairing with various submersible borehole motors\u003c\/li\u003e\n\u003cli\u003eChrome-nickel steel suction lantern provides a barrier against oversized solids and mineral debris\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":50983321993463,"sku":"4SDP 4\/7-W","price":679.75,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/calpeda-4sdp-4-7-w-stainless-steel-4-inch-submersible-bore-pump-water-transfer.png?v=1785325829","url":"https:\/\/foundationpumps.com.au\/products\/calpeda-4sdp-4-7-w-stainless-steel-4-inch-submersible-bore-pump-water-transfer","provider":"Foundation Pumps","version":"1.0","type":"link"}