{"product_id":"calpeda-4sdp-1-26-w-stainless-steel-4-inch-submersible-bore-pump-residential-tank-filling","title":"Calpeda 4SDP 1\/26-W Stainless Steel 4\" Submersible Bore Pump for Residential Tank Filling with Floating Impellers","description":"\u003cp\u003eFire protection systems and residential distribution from deep 4-inch borehole installations are the primary applications for this high-pressure submersible pump. It performs reliably in clean water with suspended sand up to 150 g\/m³, with the hydraulic section designed to remain clear in sandy groundwater conditions. The unit is rated for continuous operational duty.\u003c\/p\u003e\u003cp\u003eA 0.75 kW three-phase motor at 415V drives 26 hydraulic stages, delivering a peak head of 160 meters and a maximum flow of 25 L\/Min. The motor flange coupling conforms to NEMA standards, ensuring seamless integration with standardised 4-inch submersible motors.\u003c\/p\u003e\u003cp\u003eEach stage incorporates LEXAN floating impellers that can move axially against polycarbonate diffusers, helping to prevent stage seizure when sand particles enter the casing. This design reduces abrasive wear on internal surfaces and supports consistent operation across the performance range.\u003c\/p\u003e\u003cp\u003eAISI 304 stainless steel forms the external jacket, with a built-in non-return valve in the delivery casing to protect the motor from reverse rotation and water column weight. Rated for liquid temperatures up to 35°C, the unit includes a chrome-nickel steel suction filter to protect the 26 stages from oversized solids.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLEXAN radial floating impellers are engineered to handle sand ingress while reducing internal mechanical binding risk\u003c\/li\u003e\n\u003cli\u003eHigh-performance polycarbonate diffusers maintain a smooth hydraulic flow path for improved energy efficiency\u003c\/li\u003e\n\u003cli\u003eTwenty-six-stage hydraulic design generates 160 meters of head for deep-well recovery and fire fighting applications\u003c\/li\u003e\n\u003cli\u003eAISI 304 stainless steel external jacket provides structural integrity and protection against subterranean corrosion\u003c\/li\u003e\n\u003cli\u003eNon-return valve in the delivery casing prevents pipe drainage and reduces water hammer risk\u003c\/li\u003e\n\u003cli\u003eNEMA-standard motor coupling enables pairing with a variety of submersible borehole motors\u003c\/li\u003e\n\u003cli\u003eChrome-nickel steel suction lantern with fine filter shields internal parts from debris and mineral particulates\u003c\/li\u003e\n\u003cli\u003eClass F insulation and IP68 enclosure support safe, continuous operation in fully submerged wells\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Calpeda","offers":[{"title":"Default Title","offer_id":50983319535863,"sku":"4SDP 1\/26-W","price":1416.53,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/calpeda-4sdp-1-26-w-stainless-steel-4-inch-submersible-bore-pump-residential-tank-filling.png?v=1785325799","url":"https:\/\/foundationpumps.com.au\/products\/calpeda-4sdp-1-26-w-stainless-steel-4-inch-submersible-bore-pump-residential-tank-filling","provider":"Foundation Pumps","version":"1.0","type":"link"}