Inquiry about Submersible Drainage Pump

I need a submersible drainage pump equivalent to Pumpex PX30N for temporary marine construction dewatering in Western Australia, handling seawater with minor sand/silt content. The pump must operate continuously with specific requirements. Flow rate: 1000-1200 m³/h Total head: 20-25 m Power: 55-60 kW, 400V ±10%, 50 Hz, 3 phase, IP68 protection, F insulation class, built-in thermal protection Outlet: 200 mm, semi-open or channel impeller, suitable for dirty water with small solids Materials: Cast iron casing, high chrome alloy impeller, stainless steel shaft (minimum SS420), corrosion-resistant fasteners Sealing system: Double mechanical seal with SiC/SiC preferred, oil chamber with leakage protection Accessories: Minimum 20 m submersible power cable, lifting chain or lugs, strainer base, optional control panel/starter Documentation: Performance curve, GA drawing, datasheet, motor datasheet, test certificate Commercial terms: FOB China + CIF Australia (Perth), delivery time, packing details, minimum 12-month warranty, spare parts list and pricing. Please confirm if your model is equivalent and highlight any deviations.