The marine screw pump is also a popular pump type in marine and offshore industry. Compared with centrifugal pump and gear pump, the screw marine pump is often used in some particular condition.
The marine screw oil pump is a positive displacement pump. This mean the marine screw pump provide a constant amount of fluid for each revolution. This is a very different point from the centrifugal pump.
The following is the main three types of marine screw pump:
- the marine single screw pump. It is also called single helical rotor pump, or progressive cavity pump, or eccentric screw pump. This marine single screw pump is widely used as a bilge pump or sludge pump. For example, it is used for the oily water separator, waste water treatment unit and so on. Typical application of single screw pump on board ship or vessel are discharge of bilge, sewage, sludge, oily sea water and so on.
- the marine twin screw pump. It is also called twin spindle pump. With big capacity, this screw marine pump is mostly used as a cargo pump. This is instead of gear oil pump. This kind of marine screw pump is widely used in the offshore service vessels, like Platform Supply Vessel(PSV) and Anchor Handling Tug Supply(AHTS). Its capacity is usually bigger than gear oil pump, this is its advantage. It is widely used for HFO, MDO, MGO and other marine fuel oils. (HFO screw pump, MDO screw pump)
- the marine three screw pump. It is also called three spindle pump. This marine screw oil pump is mainly used for the lubricating oil pump for the main engine. And also sometimes, it works as a cargo oil pump. In the marine field as transfer, booster, fuel oil pumps as well for ship hydraulics. (lube oil screw pump, lubricating oil screw pump)
SILI PUMP is a reputation marine screw pump supplier and manufacturer in China.
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