{"product_id":"bomba-sumergible-lorentz-pu1800-c-sj12-4","title":"Lorentz PU1800 C-SJ12-4 Submersible Solar Pump 20m³\/h 18m Centrifugal","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLorentz PU1800 C-SJ12-4 Submersible Solar Pump\u003c\/strong\u003e is a professional pump unit designed to move large volumes of water at moderate heights in 4\" boreholes. It combines the centrifugal hydraulic body PE C-SJ12-4, made of AISI 304 stainless steel and featuring an integrated check valve, with a high-efficiency, low-maintenance ECDRIVE submersible motor. With a performance of up to 20 m³\/h and 18 m head, it is a robust and modular solution for irrigation, tank filling, and water transfer in installations powered by photovoltaic energy. This version is \u003cstrong\u003ePU (does not include controller)\u003c\/strong\u003e, intended for integration with Lorentz controllers that provide MPPT, protections, and automation via probes and float switches.\u003c\/p\u003e\n\n\u003ch3\u003eMain Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMaximum flow rate \u003cstrong\u003e20 m³\/h\u003c\/strong\u003e and maximum head \u003cstrong\u003e18 m\u003c\/strong\u003e in 4\" wells.\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eCentrifugal PE C-SJ12-4\u003c\/strong\u003e hydraulics with integrated check valve.\u003c\/li\u003e\n  \u003cli\u003eECDRIVE 1200\/1800-C motor, brushless, \u003cstrong\u003eIP68\u003c\/strong\u003e, water-lubricated; nominal power approx. \u003cstrong\u003e1.7 kW\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003eConstruction in \u003cstrong\u003eAISI 304 stainless steel\u003c\/strong\u003e for maximum durability in clean water.\u003c\/li\u003e\n  \u003cli\u003eLorentz modular architecture: fast service, original spare parts, and silent operation.\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003ePU version: without controller\u003c\/strong\u003e, prepared for external MPPT control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdvantages or Benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh flow rate with moderate pressure for rapid tank filling and gravity or low-pressure irrigation.\u003c\/li\u003e\n  \u003cli\u003eLong service life thanks to stainless materials and brushless motor (low maintenance).\u003c\/li\u003e\n  \u003cli\u003eIntegrated check valve prevents backflow and protects the water column.\u003c\/li\u003e\n  \u003cli\u003eScalability: by adding a Lorentz controller, MPPT, protections, and level control are enabled.\u003c\/li\u003e\n  \u003cli\u003eSimple integration into new solar systems or as a replacement for the existing pump unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePurpose or Applications\u003c\/h3\u003e\n\u003cp\u003eRecommended for agriculture and livestock, transfers between tanks, pond refilling, and supply on farms. Its best performance is achieved when prioritizing flow rate with pumping heights up to 18 m in 4\" boreholes, both in off-grid systems and in hybrid configurations with grid or generator support.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eLorentz PU1800 C-SJ12-4\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePump unit (PU) \u003cstrong\u003ewithout controller\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eHydraulics\u003c\/td\u003e\n\u003ctd\u003eCentrifugal PE C-SJ12-4 with check valve\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMaximum flow \/ head\u003c\/td\u003e\n\u003ctd\u003e20 m³\/h \/ 18 m\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003eECDRIVE 1200\/1800-C, brushless, IP68, water-lubricated\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eNominal motor power\u003c\/td\u003e\n\u003ctd\u003e≈ 1.7 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMaterials in contact\u003c\/td\u003e\n\u003ctd\u003eAISI 304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMinimum well diameter\u003c\/td\u003e\n\u003ctd\u003e4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWater temperature\u003c\/td\u003e\n\u003ctd\u003e≤ 50 °C (clean water)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMaximum immersion\u003c\/td\u003e\n\u003ctd\u003eUp to 150 m (depending on installation)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eUnit weight\u003c\/td\u003e\n\u003ctd\u003e≈ 13 kg (motor ≈ 7 kg + hydraulics ≈ 6 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibilities\u003c\/h3\u003e\n\u003cp\u003eThis unit \u003cstrong\u003edoes not include a controller\u003c\/strong\u003e. It is compatible with Lorentz controllers from the PS2-1800 family (add MPPT, protections, inputs for well probe and float switches). When pairing with PS2-1800, size the PV generator for \u003cstrong\u003eaggregate Vmp \u0026gt; 102 V\u003c\/strong\u003e, \u003cstrong\u003etotal Voc ≤ 200 V DC\u003c\/strong\u003e, and an \u003cstrong\u003eIsc\u003c\/strong\u003e within the controller's admissible range. Use Lorentz accessories and spare parts from the C-SJ series and ECDRIVE motors.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eLorentz PU1800 C-SJ12-4\u003c\/strong\u003e provides high flow, efficiency, and reliability with a modular design that simplifies installation and maintenance in professional \u003cstrong\u003esubmersible solar pump\u003c\/strong\u003e systems.\u003c\/p\u003e","brand":"Lorentz","offers":[{"title":"Default Title","offer_id":51503192899925,"sku":"LOREBOM046","price":1387.71,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/0252\/6805\/files\/PU-1800-C-SJ12-4.png?v=1762627670","url":"https:\/\/aurensol.net\/en\/products\/bomba-sumergible-lorentz-pu1800-c-sj12-4","provider":"Aurensol","version":"1.0","type":"link"}