{"product_id":"bomba-sumergible-lorentz-pu1800-hre-04","title":"Lorentz PU1800 HRE-04 Submersible Solar Pump 0.71 m³\/h 70 m Helicoidal","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLorentz PU1800 HRE-04 Submersible Solar Pump\u003c\/strong\u003e is a professional unit for solar pumping in 4” wells that combines the brushless ECDrive 1800-HRE motor with the HRE-04 helical hydraulics. It is optimized to provide high head with moderate flow rates, reaching up to 70 m of lift with a reference flow of 0.71 m³\/h. Its construction in AISI 304\/316 stainless steel, the integrated \u003cstrong\u003enon-return valve\u003c\/strong\u003e, and the IP68 sealing of the assembly ensure reliability, efficiency, and a long service life in demanding applications. Important: as a PU (Pump Unit), it includes pump + motor, but \u003cstrong\u003edoes not include the controller\u003c\/strong\u003e; a compatible Lorentz controller is required to operate with solar energy.\u003c\/p\u003e\n\n\u003ch3\u003eMain Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHRE-04 \u003cstrong\u003ehelical\u003c\/strong\u003e hydraulics designed for high head with excellent performance in solar energy.\u003c\/li\u003e\n  \u003cli\u003eReference flow of 0.71 m³\/h and head up to 70 m in wells with diameter ≥ 4”.\u003c\/li\u003e\n  \u003cli\u003eECDrive 1800-HRE motor (≈1.7 kW), brushless, \u003cstrong\u003eIP68\u003c\/strong\u003e, maintenance-free.\u003c\/li\u003e\n  \u003cli\u003eRobust construction in \u003cstrong\u003eAISI 304\/316\u003c\/strong\u003e and integrated \u003cstrong\u003enon-return valve\u003c\/strong\u003e for column protection.\u003c\/li\u003e\n  \u003cli\u003eLorentz modular architecture: spare parts available and compatibility with the PS2 ecosystem.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdvantages or Benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eLifts water from considerable depths with optimized solar consumption, ideal for elevated tanks.\u003c\/li\u003e\n  \u003cli\u003eVery low operating cost: high-efficiency brushless motor and minimal maintenance.\u003c\/li\u003e\n  \u003cli\u003eGreater hydraulic safety by reducing water hammer thanks to the integrated check valve.\u003c\/li\u003e\n  \u003cli\u003eSimple installation and service due to its modular design and availability of Lorentz spare parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePurpose or Applications\u003c\/h3\u003e\n\u003cp\u003eDomestic and community water supply, filling of mid-level tanks, drip irrigation on slopes, and livestock. Especially suitable when pumping height is prioritized over flow in off-grid or hybrid solar systems.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003eReference Head \/ Flow\u003c\/td\u003e\n\u003ctd\u003eUp to 70 m \/ 0.71 m³\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eHydraulic Type\u003c\/td\u003e\n\u003ctd\u003eHelical HRE-04 with non-return valve\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003eECDrive 1800-HRE, ≈1.7 kW, 900–3,300 rpm, IP68\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMinimum Well Diameter\u003c\/td\u003e\n\u003ctd\u003e≥ 4”\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMaterials\u003c\/td\u003e\n\u003ctd\u003eAISI 304\/316 stainless steel in critical parts\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWater Temperature\u003c\/td\u003e\n\u003ctd\u003e≤ 50 °C (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMaximum Submersion\u003c\/td\u003e\n\u003ctd\u003eUp to 150 m (depending on installation)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eProtection Rating\u003c\/td\u003e\n\u003ctd\u003eIP68 (submersible unit)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eHead Weight\u003c\/td\u003e\n\u003ctd\u003e~4.0 kg (reference)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibilities\u003c\/h3\u003e\n\u003cp\u003eRequires a compatible Lorentz controller (\u003cstrong\u003enot included\u003c\/strong\u003e); the usual option for this power is PS2-1800. The photovoltaic array must be sized according to the controller’s electrical limits (open-circuit voltage, input current, and MPPT window), without limiting panel brands. Recommended accessories: dry well probe, tank sensor, DC protections, submersible cable, and column piping\/valves.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eLorentz PU1800 HRE-04 Submersible Solar Pump\u003c\/strong\u003e provides the ideal balance between high lift, efficiency, and robustness, offering professional results and minimal maintenance in demanding solar pumping projects.\u003c\/p\u003e","brand":"Lorentz","offers":[{"title":"Default Title","offer_id":51503195947349,"sku":"LOREBOM052","price":1387.71,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/0252\/6805\/files\/PU-HRE_5239abe2-9745-45eb-b0ac-5e4bae0c20e7.png?v=1762627690","url":"https:\/\/aurensol.net\/en\/products\/bomba-sumergible-lorentz-pu1800-hre-04","provider":"Aurensol","version":"1.0","type":"link"}