Selecting the perfect pump

Selecting the perfect pump

May 15th 2018 I BY BAS RIJKSE FROM IHC I READING TIME 3 MINUTES
There’s a lot to consider when selecting a pump for your vessel. Each one comes with its own characteristics and specialties. The information you provide, helps us determine which pump meets the necessary requirements to achieve the task at hand. It all depends on your needs and the specifics of the vessel.

Pressure and Capacity

Determining the volume you plan to process is very important. The required pump capacity will be the main input in defining the size of the pump. The more volume needs to be processed per hour the larger the pump and accompanying pipeline system needs to be. The destination of the mixture defines the required pressure for the pump. Transporting slurry for shorter distances requires less pressure than when transporting a mixture to an area farther away. The capacity and pressure combined with the efficiency of the pump together define the requirements for the power to be installed.


Soil type and pump drive

What are you planning to transport? Knowing the soil characteristics to be dredged is vital in determining the power requirements and drive installation of the pump. Gravel and rocks require a higher flow speed and thus more power than silt and clay. This needs to be taken into account when deciding on the pump drive. If more than one type of soil is to be pumped, adjustable speed for the pump would be convenient. This can be done with a multispeed gearbox or with a more advanced electrical installation with a frequency converter.


Ball Passage

The soil type to be pumped also plays an important role in the required ball passage of the pump. The ball passage is defined by the largest spherical object that can pass through the pump without getting stuck. The smallest passage in the pump is usually in the impeller. A smaller than required ball passage leads to blockage and unnecessary stoppage to unblock the pump. Continuing operating with a blocked pump will most likely lead to damage to the pump and shortens the life span of pump installation.

It’s always a matter of weighing all options to come to the best solution. And it all boils down to your needs. Once you have specified those, the vessel components will fall into place.


Please feel free to contact us if you have any questions relating to the perfect pump.

Bas Rijkse
Written by

Bas Rijkse

Royal IHC logo Product manager dredge pumps