Marine Pump

Overview

     Marine pumps serve as the core equipment in marine engineering, tasked with fluid transportation, pressure regulation, and system function realization. Their designs integrate fluid mechanics, materials science, and intelligent control technology, adhering strictly to international standards such as IMO, DNV, and ABS. Widely applied in merchant ships, special vessels, and offshore engineering, marine pumps act as the "power heart" ensuring safe and efficient maritime operations.

Materials

     (1)Cast Iron (HT200)

           Applications: Centrifugal pump casings, non-wetted structural components

           Advantages:200 MPa compressive strength, superior wear resistance to cast steel,1/3 the cost of stainless steel, suitable for mass production

           Limitations:Max temperature 250℃, pressure capacity <1.6 MPa,Requires epoxy coating to prevent seawater corrosion\

     (2) Cast Steel (ZG200-400)

          Applications: High-pressure piston pump valves, gear pump housings

          Technical Features:200 MPa yield strength, pressure tolerance up to 5 Mpa,Chrome-plated surface for acid/alkali resistance (pH 2-12)

          Manufacturing Process:Investment casting with CT6 dimensional accuracy,Heat-treated to HRC 20-25 hardness

     (3) Copper(ZCuZn16Si4)

          Media Compatibility: Freshwater systems, hydraulic fluids

          Performance Highlights:385 W/(m·K) thermal conductivity for efficient heat dissipation,Self-lubricating properties ideal for high-speed rotors (e.g., screw pump shafts)

         Engineering Case: Silicon-bronze impellers in a luxury cruise ship’s freshwater system extended service life to 8,000 hours

     (4）Stainless Steel (304/316L)

          Core Advantages:316L with 2.5% molybdenum resists chloride corrosion (>100,000 ppm)

          Special Treatments:Surface polished to Ra 0.8μm to minimize media retention,TIG welding prevents intergranular corrosion

Classification

       By Working Principle:Hand Pump  Centrifugal Pump  Screw Pump  Gear Pump  Vortex Pump  Ejector Pump  Diaphragm Pump  Piston Pump

       By Application:Fire Pump  Emergency Fire Pump  Ballast Water Pump  Fuel Pump  Lubricating Oil Pump  Bilge Pump  Sewage Pumps  Fresh Water Pump  General Pump  Cargo Oil Pump  Cooling Water Pump

Quality Certification System

Our company operates under a mature quality assurance system with strict quality control processes. Products are certified to:

ISO 9001 Quality Management System

CCS (China Classification Society)

Optional certifications available upon request:

Chinese military inspection

Chinese fisheries inspection

LR , ABS ,GL , KR, NK, DNV , BV 

Product showcase:(In addition, please provide the parameter of the marine pump you need and we can customize the suitable type for you.)

Working Principle of Marine Oil Pump