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    Advantages of Centrifugal Pumps

    Uploaded by

    Gaurav Verma
    Vertical pumps have several advantages over horizontal pumps: 1. Vertical pumps have a considerably smaller footprint and are suitable for applications with restricted surface areas. 2. They can be altered to suit a wide range of applications by changing the NPSH, and are suitable for high pressure and high temperature liquids. 3. Vertical pumps have a steeper head capacity curve, are less affected by head fluctuations, and are self-priming so they can start at full capacity.

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    Advantages of Centrifugal Pumps

    Uploaded by

    Gaurav Verma
    48 views2 pages
    Vertical pumps have several advantages over horizontal pumps: 1. Vertical pumps have a considerably smaller footprint and are suitable for applications with restricted surface areas. 2. They can be altered to suit a wide range of applications by changing the NPSH, and are suitable for high pressure and high temperature liquids. 3. Vertical pumps have a steeper head capacity curve, are less affected by head fluctuations, and are self-priming so they can start at full capacity.

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    Advantages of Centrifugal pumps

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    Vertical pumps have several advantages over horizontal pumps: 1. Vertical pumps have a considerably smaller footprint and are suitable for applications with restricted surface areas. 2. They can be altered to suit a wide range of applications by changing the NPSH, and are suitable for high pressure and high temperature liquids. 3. Vertical pumps have a steeper head capacity curve, are less affected by head fluctuations, and are self-priming so they can start at full capacity.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    48 views2 pages

    Advantages of Centrifugal Pumps

    Uploaded by

    Gaurav Verma
    Vertical pumps have several advantages over horizontal pumps: 1. Vertical pumps have a considerably smaller footprint and are suitable for applications with restricted surface areas. 2. They can be altered to suit a wide range of applications by changing the NPSH, and are suitable for high pressure and high temperature liquids. 3. Vertical pumps have a steeper head capacity curve, are less affected by head fluctuations, and are self-priming so they can start at full capacity.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 2

    Advantages of Vertical pumps over horizontal pumps

    Vertical Pump Motor Units Horizontal Pump Motor Units


    Pros
    Considerably smaller footprint when compared Easier installation and maintenance as the internal
    with horizontal pumps parts like the rotor are easy to access
    Suitable for applications that have restricted Option for an overhang shaft design for
    surface area applications that require low suction pressure.
    The NPSH can be altered thereby making it Option for in-bearing shaft design for applications
    suitable for a wide range of applications that require high suction pressure
    Suitable for liquids with high pressures and high Secure coupling with external accessories like
    temperatures. engines, electric motors or turbines
    Suitable installation for challenging environments Several nozzle configurations are possible to suit
    external piping requirements like: Top suction top
    discharge; End suction top discharge; Side suction
    side discharge
    Steeper Head Capacity Curve - less reduction in Highly suitable for indoor applications, since the
    capacity with fluctuations in head pump has low headroom, meaning it can be
    comfortably fit even in cramped spaces
    Non-overloading at flow rates to the right of the
    best efficiency point (bep) - in many cases drives
    with small horsepower can be used
    Driver is up off the floor, therefore there is less
    danger of damage due to flooding
    Self-priming. Impellers remain submerged in
    water at all times. Pump can be fully automatic -
    start up at full capacity.
    One packing box instead of two-lower
    maintenance
    Entirely self-aligning between the driver and
    pump. Cannot get out of alignment due to rabbet
    fit between pump and driver.
    Anti-friction bearings are protected from water
    spray as they are located in motor above the
    pump. Easily accessible - lower maintenance.
    Available sizes serve a wide range of capacity and
    pressure requirements. Can vary the number of
    stages and the size of bowl assembly and impeller
    trim for maximum system flexibility.
    Minimum wear - inherent design eliminates any
    radial thrust on shaft and prevents uneven bearing
    wear.
    Shaft seal section consists of controlled leakage
    seal and the rubbing face seals located within the
    main flange and seal housing.

    Cons
    Requires large headroom, making installation and Working temperature and pressure is lower
    maintenance a bit challenging, especially when compared to vertical centrifugal pumps
    using turbine pumps or multistage units
    It requires expensive pit and barrel, especially for Cannot be used for applications that require NPSH
    large multi-stage units higher than the NPSH available.
    The overhang design makes it challenging to The footprint of horizontal designs is higher
    balance the axial thrust at high suction pressures compared to vertical pumps.
    When pumping liquids that contain high
    concentrations of dissolved gases, it becomes
    difficult to handle, and the mechanical seals are
    likely to fail

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