Category Archives for Centrifugal Pumps

Centrifugal Pump Installation Consideration

Figure 11-14 shows a typical mechanical flowsheet for two centrifugal pumps installed in parallel. It is presented to illustrate some of the considerations necessary for a good pump installation. Every installation has different objectives and very few will be exactly … Continue reading

12. September 2009 by Jack
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Wear Rings

These are easily renewable leakage seals between the impeller or shaft and casing designed to prevent leakage from high pressure to low pressure areas. They require a difference in hardness to avoid galling, and in sandy service a flushing fluid … Continue reading

12. September 2009 by Jack
Categories: Centrifugal Pumps Bearings-Seals-Wear-Rings | Tags: | Leave a comment

Seals

Seals are necessary to prevent leakage at the point where the shaft enters the pump case. The most inexpensive seal is made of packing material that acts as a pressure breakdown device. Packing must be flexible and capable of being … Continue reading

11. September 2009 by Jack
Categories: Centrifugal Pumps Bearings-Seals-Wear-Rings | Tags: | 1 comment

Bearings

Ball bearings transmit a load from a rotating surface to a fixed surface via a series of rotating balls. They are generally inexpensive, do not require any separate lubrication system, and can be designed to be selfaligning. However, they have … Continue reading

11. September 2009 by Jack
Categories: Centrifugal Pumps Bearings-Seals-Wear-Rings | Tags: | Leave a comment

Centrifugal Submersible Pump

Description Mounting = Vertical Casing split = Radial Impeller type = Radial Mounting feet = Mounting plate No. of stages = Multiple Applications Flow conditions: High head and moderate flow rate, low NPSH available Service rating: Critical Typical uses: 1. … Continue reading

10. September 2009 by Jack
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Centrifugal API Vertical Turbine or Can Pump

Description Mounting = Vertical Casing split = Radial Impeller type = Mixed or radial Mounting feet = Mounting plate No. of stages = Multiple Applications Flow conditions: High head and high flow rate, low NPSH available Service rating: Critical Typical … Continue reading

10. September 2009 by Jack
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Centrifugal Sump Pump

Description Mounting = Vertical Casing split = Radial Impeller type = Radial Mounting feet = Mounting plate No. of stages = Single Applications Flow conditions: Low head and moderate flow rate Service rating: Non-critical Typical uses: Primarily used to pump … Continue reading

10. September 2009 by Jack
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Centrifugal API Barrel Pump

Description Mounting = Horizontal Casing split = Radial Impeller type = Radial Mounting feet = Centerline of pump casing No. of stages = Multiple Applications Flow conditions: High head and flow rate, all specific gravities Service rating: Critical Typical uses: … Continue reading

10. September 2009 by Jack
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Centrifugal API Multistage Split Case Pump

Description Mounting = Horizontal Casing split = Axial Impeller type = Radial Mounting feet = Centerline of pump casing No. of stages = Multiple Applications Flow conditions: High head and flow rate, high specific gravity Service rating: Critical Typical uses: … Continue reading

10. September 2009 by Jack
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Centrifugal Vertical In-Line Pump

Description Mounting = Vertical, in-line with piping Casing split = Radial Impeller type = Radial Mounting feet = None No. of stages = Single Applications Flow conditions: Low head, moderate flow rate Service rating: Non-critical Typical uses: 1. Service water … Continue reading

10. September 2009 by Jack
Categories: Generic Types of Centrifugal Pumps | Tags: | Leave a comment

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