Troubleshooting of HFO Purifier in Cai Lan Port

The purifier is an essential piece of machinery on a ship, with its troubleshooting and operating performance being monitored through various parameters, including oil temperature, back pressure, bowl speed, oil density, and throughput. For optimal purification, the feed inlet oil temperature should be within a range of 98-100°C for HFO and 80-85°C for L.O. Increasing the oil temperature can lower its viscosity, which is recommended for better purification results. The oil density should also be suitable for the purifier, as recommended by the manufacturer, with lower density resulting in better separation due to the increased density difference. The bowl’s RPM should be as high as possible to generate a higher centrifugal force, which is responsible for separating impurities in the centrifuge or purifier. For instance, in an Alfa Laval purifier, the RPM is around 9000.
Troubleshooting is a problem solving skill, in which problems are identified and corrected in a logical and systematic order.Purifier is one of the most important machinery which require proper care and maintenance.
Hai Ha M&S with a team of engineers and workers has a lot of experience and skills in repairing and maintaining Purifier such as Alfa Laval, Mitsubishi …
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This is a 26-year-old mitsubishi SJ20 purifier that has a strong vibration problem, can’t discharge, oil leak and has been handled by us on the ship at Cai Lan port.
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The old cap nut uneven grinding the old gravity disc is improperly installed.and has been replaced with a more suitable type.
Discharge test 
With the importance of the purifier on board, any incident that leads to the interruption of the ship’s operation is a very dangerous thing. Therefore, the timely presence to handle the problem is very necessary.
Hai Ha M&S can be sure that it always ensures all the requirements for quality and progress set by the ship owner.

Below are some of the services we can offer you:

  • Steel Repairs

  • Insulation/Accommodation WorksMain Engine and Aux Engine Overhauling and Maintenance

  • Deck machinery

  • Cargo handling equipment

  • Reconditioning of engine components

  • Air condition and refrigeration systems

  • Electrical & electronic components

  • Automation systems

  • Hydraulic and pneumatic equipment

  • Hatch Cover Repairs

  • Electrical Motor Overhaul and Rewinding works

  • Crane gearbox trouble shooting.

  • Renew steel plate for Jib.

  • Supply renewal Sheave Bearing.

  • Recondition shaft of sheave

  • Supply and renew wire rope for Crane.

  • Overhaul and repair hydraulic system crane.

Ship repair and Marine Service in Vietnam:

  • In our workshop we are able to overhaul all kind of machinery such as pumps, winches, crane bolts, hatch cover wheels, etc. within house facilities, materials on stock and experienced technicians for prompt fabrication of damaged spare parts.Our engineers can also work on board for alignments works, changing bearings of generator, fan casings, engine works etc
  • As a group our company Hai Ha M&S is providing the marine service and ship repair in Vietnam as such underwater inspection, Hull cleaning, rewinding/overhauling electric motor, fabrication and steel work with quick team of mobilization, reasonable price and best quality,  We take care your repairs for your good vessel
  • Our primary goal in services is to ensure the fastest and best quality of repairs so as not to compromise the operation of the vessel. From a company of only a few men steadily grows to its present scale with more than 30 dedicated craftsmen. From a very well equipped workshop and our dedicated workforce, trucks, portable welding machines, diving equipment, auxiliary equipment and 24/7 availability, we can provide for you the following services.
    • Mission: To provide the highest quality across our full range of product sourcing and services, tailored towards total customer satisfaction and in line with the best business practices and global environmental safety standards for better service from enquiry to delivery with experienced staff and logistic support all over the globe.
    • Vision: A global leader in marine and ship repair , providing unequalled quality and professional service with the best interest and satisfaction of the client as our core values at all times

    In field of Marine and Ship repair In Vietnam Hai Ha M&S will bring you the best service and best price with highest quality and 24/7 available  . Our services:


    Office: 44/82 – Vu Chi Thang Str, Hai Phong city – Viet Nam

    Hotline  : +84 388-441-654


    Electric Services site:

    Please fill free to contact us as following address for any kind of marine and repairs service for your good vessel in Vietnam.