Dalian West Pacific Petrochemical seawater intake pump head replacement project | Dalian, Liaoning

Application scenario: Coastal refining enterprise established in 1990, only pump head replacement for No. 3 seawater intake pump in pump station. Transporting chloride-containing corrosive seawater, with large temperature variation range (-21.1°C ~ 35.5°C), requiring 100% complete interchangeability with original pump without modifying foundation or pipeline.


Solution content: XS500-850G horizontal single-stage double-suction split case centrifugal pump (5,500 m³/h, head 90 m, efficiency >84%, 980 r/min), with identical external dimensions, flanges, center height, and base dimensions as the original pump, enabling direct on-site replacement. Vibration complies with petrochemical rotating machinery SHS01003-2004 A-class standard, noise ≤85 dB(A), NPSHr <10 m, fully compliant with GB/T3216 and other petrochemical standards.


Project results: Design life of 30 years, annual continuous operation ≥8,000 hours, 24-hour technical response and 48-hour on-site service, ensuring long-term stable operation of seawater intake pump station.

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