Marine Pumping System.

Marine pumps are named by their use or application and cover many types of pumps. A marine centrifugal pump transports fluids by converting rotational kinetic energy to the hydrodynamic energy of the fluid flow. The rotational energy typically comes from an engine or electric motor. These marine pumps can be used for cooling, circulating, ballast, general service(G/S), fire-fighting, boiler feed water, condensate water, fresh(drinking) water, sanitary water, bilge & sludge, F.O. transfer, L.O. transfer, F.O. and F.S. cargo pumping, cargo stripping, hydrophore tank unit, sewage treatment unit, oil water separator, incinerator, fresh water generator, and so on.

Ballast Pumps

Ballast Pump, also called ballast tank pump or ballast water pump, is a pump for transferring or discharging water ballast. The ballast pump is usually located in a pump room on board. Together with the tanks, pipes and valves, it makes up the ballast system.

Ballast Stripping Pumps

In most cases, ballast pumps will not be able to completely empty the ballast water tanks. In order to do this, a ballast stripping pump is required. This marine stripping pump should have good priming capabilities and low NPSHr.

Base Oil Pumps

Base oil is a thin oil used in the offshore industry to mix with drilling mud. Base oil pumps are only used on offshore vessels like rigs and offshore supply vessels.

Bilge Pumps

A bilge pump is a water pump used to remove bilge water. A marine bilge water pump makes sure that the bilge wells are emptied regularly, so that the vessel’s stability is not compromised. Bilge water may contain contaminants transferred from other parts of the vessel, such as oils, chemicals and particles, so the pump must be able to cope with a certain amount of solids.

Boiler Feed Pumps

A boiler feed pump feeds either fresh water or steam condensate into a steam boiler. This is a high-pressure application, so boiler feed water pumps are generally high-head, low-flow pumps. Multistage pumps are therefore a common choice when a marine boiler feed water pump is required.

Brine Pumps

Brine has a high salt content, which allows the brine to be cooled down to below the normal freezing point of water. This high content of salt gives the brine a very high density.

Drill Water Pumps

Drill water pumps are only applied by the offshore industry. Drill water is used during the drilling of the oil well. The liquid can be both seawater as well as fresh water depending on the rig arrangement.

Emergency Fire Pumps

An emergency fire pump is a fixed pump driven independently by a self-cooled compression ignition engine or by an electric motor powered from the emergency generator.

Fire Jockey Pumps

A jockey pump is a small pump connected to a fire sprinkler system to maintain pressure in the sprinkler pipes. When a sprinkler is activated, the resulting pressure drop is sensed by the fire pump’s automatic controller, which starts the fire pump.

Fresh Water-Cooling Pumps

Marine cooling water pumps are used in the marine and offshore industry. Much of the equipment on board a vessel or offshore platform generates heat that needs to be removed, and water cooling is an effective way to do this.

Fuel Oil Transfer/Service Pumps

Marine fuel oil pumps transfer or boost fuel from one tank to another and supply fuel to the fuel consumers.

General Service Pumps

General service pump, sometimes called marine GS pump, is usually a vertical centrifugal pump. In fact, it is just a general name for the marine ballast pump, bilge pump, fire pump and so on.

Inert Gas Cooling/ Scrubber Pumps

Scrubber systems are designed to protect the environment from chemical gases released in fumes. A fume scrubber pump is required to circulate neutralizing fluids such as caustic soda, which help to treat the fumes and ultimately reduce what is released into the atmosphere. Scrubber pumps are used in the scrubber system.

Lubrication Oil Pump

Lubricating oil has to be handled and changed on board and transferred from a tank to the different consumers. The marine lube oil pump takes care of this. It can be a lube oil supply pump, transfer pump, circulation pump, booster pump, service pump and so on.

Main Engine Preheating Pumps

Main engine preheating pumps are only in operation when the main engine is not running. The purpose of this system is to keep a constant, high temperature in the main engine in order to avoid unnecessary heat and cold contractions and thus keep the engine ready to run at all times.

Seawater Cooling Pumps

A seawater cooling pump takes suction from the sea chest, pumps the seawater through the central fresh water coolers and then overboard. The system can be designed with two or three pumps. The pumps are crucial for the operation of the vessel and they are always running.

Sewage Pumps

Sewage Pumps are used to transfer sewage and dirty waste water to a treatment location on board ships or vessels. Solids are often present, so the pump must be able to handle them.

Sludge/ Dirty Oil Pumps

A sludge pump is used for internal transfers and for discharge to a shore reception facility. Ship-generated sludge is the residue from any oil separation process which is usually a mixture of water, solid material and high viscosity oil.