{"product_id":"calpeda-4sdp-1-19-w-stainless-steel-4-inch-submersible-bore-pump-borehole-water-supply","title":"Calpeda 4SDP 1\/19-W Stainless Steel 4\" Submersible Bore Pump for Borehole Water Supply with Floating Impellers","description":"\u003cp\u003eAgricultural irrigation and rural water systems are well served by this pump, which extracts water from 4-inch boreholes while handling sand concentrations up to 150 g\/m³. The unit is configured for continuous service duty in applications such as large-capacity tank filling and garden irrigation.\u003c\/p\u003e\u003cp\u003eDriven by a 0.55 kW three-phase motor at 415V, the 19-stage assembly generates a maximum head of 118 meters at a flow rate of 25 L\/Min. The mechanical interface conforms to NEMA flange standards, providing a reliable connection point for high-performance submersible motors.\u003c\/p\u003e\u003cp\u003eRadial floating impellers manufactured from LEXAN allow axial movement to accommodate sand passage, helping to protect the polycarbonate diffusers from abrasive wear. This floating stage configuration is particularly suited to deep borehole applications where geological sediment is present.\u003c\/p\u003e\u003cp\u003eThe AISI 304 stainless steel external jacket provides a barrier against borehole oxidation and chemical groundwater attack. An integrated non-return valve in the delivery casing prevents the water column from damaging the pump during shutdown. Rated for liquids 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 passage while helping to prevent mechanical blockage\u003c\/li\u003e\n\u003cli\u003eReinforced polycarbonate diffusers enhance fluid velocity while reducing operational energy requirements\u003c\/li\u003e\n\u003cli\u003eNineteen-stage hydraulic assembly provides 118 meters of head for high-pressure rural water supply and irrigation\u003c\/li\u003e\n\u003cli\u003eAISI 304 stainless steel external jacket offers resistance to mineral corrosion and structural deformation in borehole service\u003c\/li\u003e\n\u003cli\u003eIntegrated non-return valve in the delivery casing prevents backflow and eliminates the need for external check valves\u003c\/li\u003e\n\u003cli\u003eNEMA-standard coupling simplifies field installation and ensures compatibility with a wide range of submersible motors\u003c\/li\u003e\n\u003cli\u003eChrome-nickel steel suction lantern and filter provide a robust barrier against oversized mineral debris\u003c\/li\u003e\n\u003cli\u003eClass F motor insulation and IP68 protection support reliable performance under continuous immersion\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Calpeda","offers":[{"title":"Default Title","offer_id":50983319503095,"sku":"4SDP 1\/19-W","price":1154.73,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/calpeda-4sdp-1-19-w-stainless-steel-4-inch-submersible-bore-pump-borehole-water-supply.png?v=1785325798","url":"https:\/\/foundationpumps.com.au\/products\/calpeda-4sdp-1-19-w-stainless-steel-4-inch-submersible-bore-pump-borehole-water-supply","provider":"Foundation Pumps","version":"1.0","type":"link"}