Menu Bar

The Menu Bar of the Sizing Module is quite similar to that of the Valve Manager with some different menus. These menus are discussed next.

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File Menu: The options in this menu are used to do basic file operations. These operations are listed next.

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Print: This option is used to print the different form associated with the valve, such as spec sheet, drawings, Cv table and so on. On clicking this option, the Print Menu dialog is displayed. This dialog has been discussed in detail earlier. You can also invoke this dialog by pressing Ctrl+P shortcut keys.

TEST: This option is used to test the Performance! application. The user is notified in advance by the Performance! Help Desk if it wants Performance! application to be tested by the users.

Exit: Click this option to exit the Performance! software.

Valves: The options in this menu are used to do various operations related to valves. These options are discussed next.

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Management: Click this option to invoke the Valve Manager dialog. You can use this dialog to create new projects, customers, and valves. You can also invoke this dialog by pressing F5 shortcut key.

Save: Click this option to save a valve record and size. Alternatively, press Ctrl+S shortcut keys to save it.

Copy: Click this option to create the copy of the selected valve record. On doing so, the Select Project and Customer dialog is displayed. The options in this dialog have been discussed earlier.

Update: Click this option to update the selected valve record.

Price: This option is used to generate the pricing details which include the discounts, multipliers, exchange rates, and so on.

Specify: Click this option to invoke the Performance! Specifications dialog. This dialog is used to set different specification for the valve. This dialog will be discussed in details later.

Revision: Click this option to invoke the Revision Screen dialog.

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Using this dialog, you can specify the revisions for various valve sizing parameters such as pipe size and schedule, temperature, pressure, flow rate, velocity. By default, 0 is displayed in the Quote Revision edit box. To specify the revision, click the Increase button; the revision number is increased by 1. You can further increase the revision number by clicking Increase button again. To decrease the revision number by 1, click Decrease button. Next, click the Set button corresponding to the desired parameters (such as Pipe Size, Up/Down, Pipe Sch. Up/Down, Fluid, Liq Flow Rate and so on); the revision number specified is assigned to the parameter. Similarly, assign the revision to other desired parameters.

To control the revision number of a parameter individually, click Increase or Decrease button to increase or decrease the revision number. Next, click the Set button corresponding to the desired parameter. After setting the revisions, click OK to accept the revision. You can reset the revision values to 0 by clicking Reset button.

The revision numbers are displayed on the spec sheet after the line number. Also, the highest revision number is shown on the header of the sheet.

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Sizing: The options in this menu are used to specify the various sizing parameters of the valve such as plate size, flow conditions, flow curves, noise and so on. The options in this menu are discussed next.

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Calculate: Click this option to size the valve with the specified conditions and parameters. Alternatively, press the F3 shortcut key to size the valve. The status of the valve sizing is displayed at the Status Bar of the Sizing Module/Screen.

Plate Sizing: This option is used to calculate the different sizing parameters to the plates that are used for noise reduction in valves. To calculate the sizing parameters, first you need to specify the flow conditions. After you specify the conditions, click the Plate Sizing option from the Sizing menu; the Plate Information window is displayed. In this window, select the desired design (override value) from the Override combo box; the other parameters (plate size, number of plates, pressure rating) corresponding to the selected design are displayed. Next, click the Calculate button; the sizing is started and after sizing is done, the Plate Information window is displayed again, but this time with some flow conditions.

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To view the flow curve, click the Flow Curve button; the system flow curve will be displayed in a new window. You can exit this window by clicking OK or print the flow curve by clicking Print button in this window. To print the flow conditions, click the Print button in the Plate Information window.

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Stroke Time Calculator: Click this option to display the Stroke Time Calculator window. The stroke time is the time which the valve assembly takes to complete its full stroke in either of the direction after getting the full input signal. The graph in the Stroke Time Calculator displays the relation between the valve openings as the time progresses. This window also displays the actuator summary, estimated results, air supply conditions and Cvs. You can even print the stroke time graph along with the actuator summary by clicking the Print button.

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If you click the Advanced button; the Stroke Time Details dialog is displayed. This dialog displays the information about the stroke time, displacement of actuator, pressure, velocity at different opening data points. You can also view the Cvs of devices.

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Conditions Results: Click this option to display the detailed results of the flow conditions. On doing so, the Detailed Conditions Information is displayed. You can also print the condition results by clicking the Print button.

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Flow Curve: Click this option to view the flow curve graph. On clicking this option, the Valve Flow Curve window is displayed. This window shows the variations of Cv with the increase in valve opening. You can also print the flow curve graph by clicking the Print button.

$images\valve_flow_curve.gif$

Noise Info: Click this option to view the detailed noise information. On clicking this option, the Detail Noise dialog is displayed. This dialog displays the information about different sizing parameters of the valve, frequencies, and noise at different flow conditions.

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Misc Info: Click this option to display the information about various fluid factors. On doing so, the Detailed Miscellaneous Information dialog is displayed.

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The factors in this dialog are listed below:

Fs – Stream Flow Factor

Fp – Piping Geometry

Fl – Liquid Pressure Recovery Factor

Fr – Reynolds Factor Number

Dlf – Valve Specific Correction Factor (used for liquid noise calculations)

Sg – Specific Gravity

Xt – Terminal Pressure Drop Ratio

Z – Compressibility Factor

Fd – Valve Style Modified for the last stage of low noise trim (used for aerodynamic noise calculations)

Mwt – Molecular Weight

Sigmas: Click this option to view different cavitation indices. On doing so, the Detailed Cavitation (Sigmas) Information dialog is displayed. This dialog displays various sigma values for different sets of flow conditions. These factors will be displayed only if the fluid used is in liquid form.

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The different sigma indices are listed below.

Sigma – Cavitation index at flowing conditions

Sigma MR – Manufacturer’s recommended valve cavitation coefficient

PSE – Pressure scale effect for cavitation

SSE – Size scale effect for cavitation

Sigma V – Valve coefficient scaled for pressure and size

Sigma P – Valve coefficient scaled for pipe reducer effects

This Detailed Cavitation (Sigma) Information dialog can also be invoked by pressing the F2 shortcut key.

You can also print the detailed cavitation information by clicking the Print button. To plot the sigmas graphically, click the Plot Sigmas button; the Recommended Sigma window is displayed.

$images\valtek_recommended_sigma.gif$

Configure: This menu is used to configure Performance! according to your preferences. You can configure the manufacturer, default values, start up values, units and so on for the valves. All the options in this menu except the Warning menu have been discussed earlier. If you click on the Warning menu; a cascading menu is displayed. Using this menu, you specify the warning levels for sizing the valve. These levels include Beginner, Intermediate, Advanced, and Testing.

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Help: The options in this menu are used to open the different help files of the Performance! software.