Sea Water Filter

Reliable Water Filtration

Unfiltered seawater can cause major damage in the maritime industry. This includes more than just “fouling” occurring in pipes: The particles contained in the water can contaminate systems and lead to failures. Sunfilter offers the appropriate filter systems for optimal seawater filtration, thus protecting the system components, preventing production downtimes and reducing maintenance costs.

Areas of Application

Seawater is often used to produce service and drinking water, as well as for cooling purposes. Sunfilter are used in the following markets:

Desalination , Reverse Osmosis

Ship operation technology, Ballast Water , Cooling Systems, Gas Scrubber, LNG

Oil and Gas, Water Injection

Water extraction

Municipal water treatment, UF Ultra Filtration, MF Membrane Filtration

Power & energy, make-up water, FGD, Scrubber , Screen Wash Water, HVAC , Cooling Tower

Requirements for Seawater Filters

Seawater exhibits an average salt content (salinity) of approximately 35 per mill. However, in order to separate the water from organic substances, such as algae or fine particles, the seawater has to be pretreated. For this purpose, a fine filter is installed between a coarse separator and the chemical or physical disinfection unit. This removes microbial organism, mollusks and plant formations along with suspended particulate, from the ballast water.

The criteria that apply to filter systems for seawater filtration are challenging and manifold. Seawater filters have to...

Combine the required filter fineness with high flow rates and a long service life.

Comply with the required separation efficiency.

Prevent the filter mesh from clogging despite the high load of ballast water.

Withstand the aggressive nature of seawater.

Be easy to install, retrofit, operate and service.

Require limited space.

Contribute to keeping the operating costs of the system as low as possible.

Regulations in the Maritime Industry

Ship owners and ship operators are legally obligated to equip their seagoing vessels with BWT (Ballast Water Treatment) systems. The International Maritime Organization (IMO) of the United Nations recommends filtering organic material and sediment larger than 50 μm out of the water.

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