It is these types of challenges that have made Flowserve a leader in the development and application of advanced flow control technologies for the oil and gas industry. Whether upstream or downstream, Flowserve pumps, valves and automation equipment and services support a wide range of industry functions, including exploration, production, pipeline transmission, storage, and refining.
Flowserve has made significant contributions to these advancements by designing the first centrifugal pumps for oil field production, along with automatic mainline and booster pipeline stations. High in the Peruvian Andes, Flowserve pipeline pumps are transporting 50, barrels of natural gas liquids per day some kilometers miles to the coastline.
The pipeline traverses altitudes as high as 4, meters 13, feet. Whatever the application, Flowserve is constantly working to help its customers meet their environmental goals.
Engineering design, material expertise and application know-how are core strengths of Flowserve. Throughout its history, Flowserve has been closely identified with power generation.
For more than years, Flowserve has been at the forefront of significant advancements in pumping technology to meet water handling challenges. Additionally, Flowserve has been instrumental in the provision of potable water through desalination to parts of the world where there is no access to potable water. To ensure pump system reliability and plant availability, problems related to corrosion, scaling and bacteria must be effectively addressed along with effluent water treatment. What are the applications and uses for multi stage pumps?
What are the different types of multi stage pumps? Horizontal split case pump Vertical Turbine pump Sanitary Multistage pump What are the advantages of using a multi stage pump? What is difference between a single stage and a multi stage pump? How do you read a multistage pump curve? What is the difference between a vertical multistage pump and a horizontal multistage pump?
The main differences between a vertical multi stage pump and a horizontal multi stage pump are; the orientation of the pump the vertical multi stage pump is above ground and may be used where there are space limitations however the motor needs to be removed before maintenance can be performed.
It is common in vertical pumps for the thrust load to be taken by the motor e. VTP turbine pumps which have electric motors specifically designed for this type of pump to eliminate the need for a thrust bearing in the pump resulting in less complexity and costs.
VTP pumps can be produced with column lengths of more than metres. They would need to be aligned with the electric motor. On vertical pumps, the mounting is perhaps simpler i. Which type of multistage pump is more commonly used in industry? The impeller vanes accelerate and diffuse the flow, adding velocity, and developing pressure. The liquid velocity at the impeller exit is greater than that at the impeller inlet.
The casing guides the liquid to the discharge neck where the casing cutwater splits the flow, the other portion directed to the pump discharge. At this point, some of the velocity energy is converted to pressure energy by slowing the liquid from the casing velocity to the discharge pipe velocity.
Firstly, you need to select a pump type most appropriate for the application, for example, Centrifugal or Positive displacement pump. Assuming you have identified that centrifugal is the most suitable, how do you select a model to deliver the required performance? Every engineer must fully understand and determine what are the basic criteria of the application in question.
Such as the flow rate, the total dynamic head or pressure required, the specific gravity or density of the fluid, other properties i. Once we know this data, we then need to consider whether a safety margin been added to the calculated system pressure drop? Therefore, a safety margin should be added so that the pump is guaranteed to give the desired flow rate. This is where care needs to be exercised. If too much of a margin is added, the pump will always try to find the intersection of the system curve pressure drop vs.
See diagrams below of a good centrifugal pump selection vs a poor pump selection to fully illustrate this point:. We firmly believe if mechanical equipment components are correctly sized and maintained from the onset, the operation will be both efficient and reliable.
We also hold a heavily stocked inventory to help take the pressure off you in the event of unexpected emergencies.
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