Curve Preferences

If your implementation uses the Selector, the curves preferences menu option controls the display of the performance curve. The curve preferences page enables you to perform the following:

• Define the content of the curve in terms of head, efficiency, power and NPSH, as well as allow you to toggle to ISO lines for efficiency.

• Define parallel or series curves.

• Define up to 4 different system curves.

• Define the curve presentation in terms of color and line weight.

• Define the quality of the lines (normal vs. smoothed).

 The image below is an example of the Curve Preference menu.

Please note that this preference option is not available for certain implementations.  

Click on the sections for more information:

Sections:

1. Pump Performance Curve Content

   This section controls the content of the performance curve. Click the radio buttons to select the desired curve content output. Non viscous curves can be toggled on an off by the applicable check boxes, this allows you to see the non-viscous curve with the rated curve.

    

   The following for can be defined for performance curves:

    

   1.    Head

      You can define the following:

       

      • None

      • Rated curve only

      • Rated, min & max curve

      • Rated and all catalog curves*

      • Non Viscous

      • Position, curve label

      • Chart position

       

      *Not supported for vertically suspended pumps that use the advanced Selector vertical pump functionality

   2.    Efficiency

      You can define the following:

       

      • None

      • Rated curve only

      • Rated and all catalog curves*

      • ISO lines

      • Non Viscous

      • Position, curve label

      • Display rated flow duty point

       

      *Not supported for vertically suspended pumps that use the advanced Selector vertical pump functionality

   3.    NPSHr - 3% head dropr

      You can define the following:

       

      • None

      • Rated curve only

      • Rated and all catalog curves*

      • Position, curve label

      • Display rated flow duty point

      • Chart position

       

      *Not supported for vertically suspended pumps that use the advanced Selector vertical pump functionality

   4.    NPSHr - 0% head drop

      You can define the following:

       

      • None

      • Rated curve only

      • Position, curve label

      • Display rated flow duty point

      • Chart position

       

      *Not supported for vertically suspended pumps that use the advanced Selector vertical pump functionality

   5.    NPSHr - Incipient

      You can define the following:

       

      • None

      • Rated curve only

      • Position, curve label

      • Display rated flow duty point

      • Chart position

       

      *Not supported for vertically suspended pumps that use the advanced Selector vertical pump functionality

   6.    Sub

      You can define the following:

       

      • None

      • Rated curve only

      • Position, curve label

      • Chart position

       

      *Not supported for vertically suspended pumps that use the advanced Selector vertical pump functionality

   7.    Power - Shaft (P2)

      You can define the following:

       

      • None

      • Rated curve only

      • Rated, min & max curve

      • Rated and all catalog curves*

      • ISO lines

      • Position, curve label

      • Display rated flow duty point

      • Chart position

        Chart position for Power will be set the same for Shaft (P2) and Input (P1).

       

      *Not supported for vertically suspended pumps that use the advanced Selector vertical pump functionality

   8.    Power - Input (P1)

      You can define the following:

       

      • None

      • Rated curve only

      • Rated and all catalog curves

      • Position, curve label

      • Display rated flow duty point

      • Chart position

        Chart position for Power will be set the same for Shaft (P2) and Input (P1).

       

      *Not supported for vertically suspended pumps that use the advanced Selector vertical pump functionality

   9.    MCSF

      You can define the following:

       

      • None

      • ISO lines

   10.    Max allowable flow

       You can define the following:

        

       • None

       • ISO lines

   11.    Minimum thermal flow

       You can define the following:

        

       • None

       • ISO lines

2. Vertical Pumps

   The performance curve can show:

    

   1. Pump performance calculation

      You can define the following:

       

      • Account for static lift from LLL to discharge nozzle centerline (in addition to friction losses and power losses) when calculating pump performance from bowl

   2. Curve display options

      You can define the following:

       

      • Pump performance

      • Bowl performance

      • Pump and bowl performance

   3. Duty Point, Primary

      You can define the following:

       

      • Head, rated (requested)

      • Bowl head

      • Pump head

3. Total and Bare Pump Performance

   Use this option to set the curve display options for Total and Bare Pump Performance.  You can define the following:

    

   1. Total pump performance

   2. Bare pump performance

   3. Total and Bare Pump Performance

4. Preferred Operating Region

   Use this option to set the operating range of the curve. The range is based upon Percent of BEP.  You can define the following:

    

   1. Percent of BEP

      You can define the following:

       

      • Left of BEP

      • Right of BEP

   2. Display

5. Parallel or Series Operation

   This option allows you to see the combine performance of multiple pumps in either parallel or series operation. You can define the following:

    

   1. Number of pumps

   2. Display

6. System curves

   This section allows you to define up to four system curves to display on the performance curve. You can define the following:

    

   1. Static head

   2. Flow

   3. Head

   4. Label

   5. Display

7. Pump Performance Curve Presentation

   This allows you to modify the following on pump performance curves :

    

   1.   Rated diameter, viscous/slurry performance

   2.   Rated diameter, non-viscous/slurry performance

   3.   Non-rated diameter, viscous/slurry performance

   4.   Non-rated diameter, non-viscous/slurry performance

   5.   ISO, efficiency

   6.   ISO, NPSH

   7.   ISO, power

   8.   ISO, MCSF / allowable operating region

   9.   NPSHr (0% head drop)

   10.   NPSHr Incipient

   11.   Max allowable flow

   12.   Minimum thermal flow

   13.   Submergence

   14.   Preferred operating region

       You can not define the style and weight for the preferred operating region of a curve.

   15.   System curve #1

   16.   System curve #2

   17.   System curve #3

   18.   System curve #4

   19.   Duty point, viscous/slurry performance

   20.   Duty point, non-viscous/slurry performance

       The style of Duty Point primary can be set to a large or small arrow.

   21.   Duty point, secondary

       The style of Duty Point, secondary will be set to a small triangle no matter what arrow is selected at the Duty Point, primary.

   22.   Minor grid

   23.   Major grid

   24.   Background

       You can not define the style and weight for the background color of a curve.

    

   with the following options:

    

   1. Style

      You can select the following different styles:

       

      • Solid

      • Long dash

      • Short dash

      • Long dot

      • LSL dash

   2. Color

      You can select the appropriate color.

      You can select the following different colors:

       

      • Gray

      • Dray Gray

      • Black

      • Dark Blue

      • Blue

      • Violet

      • Dark Red

      • Magenta

      • Red

      • Orange

      • Brown

      • Green

      • Teal

      • White

      • Yellow

      • Pink

      • Light Gray

      • Cyan

   3. Weight

      You can define line weight value from 0 to 3.  

8. Motor Performance Curve Presentation

   This allows you to modify the following on motor performance curves :

    

   1. Input power [P1]

   2. Rated power [P2]

   3. Efficiency [eff]

   4. Power factor [cos]

   5. Current [I/In]

   6. Speed [n/ns]

   7. Slip [s]

   8. Torque [M]

    

   with the following options:

    

   1. Style

      You can select the following different styles:

       

      • Solid

      • Long dash

      • Short dash

      • Long dot

      • LSL dash

   2. Color

      You can select the appropriate color.

   3. Weight

      You can define line weight value from 0 to 3.  

9. Performance Curve Image Type

   You can define the image type to be one of the following:

    

   1. PNG

   2. SVG high quality

   3. Silverlight

Note if you use the xSheets application this page will be hidden in preferences.