sizing a valve from scratch
TRANSCRIPT
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Sizing a Valve Using Fisher Specification Manager A Basic Approach LETS BEGIN
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All the real sizing work is done in and with the Tags.A New Tag should be created for each Valve Sized.
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Note: The Project and Tag Name can be changed by rightclicking on them and selecting Rename.This tutorial is meant to be a basic guide, not an exhaustive source of information. Please refer to the rest of the Help System for detailed explanations of program features.Note: A completed Spec Sheet (ISA Sheet) will be the result of the sizing sequence.
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* For bestsizing results,fill fieldsexclusivelyfrom dropdowns.2. Select a Pipe Size4. Fill in RemainingSpaces **** Not allinformationis required forcalculations. Blue D/F or Dindicates fieldsrequired foreither sizingcalculationsor dimensionaldrawings. Restis for specsheet.Select a Styleand Rating *3. Select a ScheduleOR a Thickness5. Click on Valve Sizing
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1. Select yourfluid type ** This examplewill be based onwater forsimplicitys sake.2. Fill in at leastthe Min Conditioncompletely. **** Units can bechanged with drop downs andKc can belooked up.Note: A numberis not consideredentered in thespreadsheetuntil the cursormoves toanother cell
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If you have Multiple conditions1. Select one cellin Min conditioncolumn.2. Right Click on Cell.3. Select Copy Condition
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1. Select one cellin the desired conditioncolumn2. Right Click on Cell3. Select Paste Condition ** You can alsoselect PasteCondition ToAll and the remainingcolumns willbe filled withthe copied one.
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*Here, just the flow rate is changed betweenconditions.1. Make adjustments to each condition *2. Delete unnecessaryconditions by selectinga cell in that column3. Click on DeleteCondition Note: Conditionnames can bechanged by clicking on themand typing over. 4. Click Calculate
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1. The calculated results appear in yellow cells. * * If all thevalues are notcalculated, checkWarnings to seewhat needs tobe fixed. Warningsappear and alertthe user toproblems inhibiting calculations.Other messagesmay appear inthis section to provide further insight aboutyour conditions.2. Click Valve Selection
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1. Select a ProductSeries * *A user can view theproduct bulletinin PDF orHTML form to help decideon a productNote: Productsdisplayed havebeen filteredusing informationprovided to help reduce selectionlist. Unselecting the filters givesmore options,but may result in incorrect sizing.
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1. Select a Valve type * * Clicking on theattribute nameselects the valve.In this case, a CL900 Linearhas beenchosen.2. Select a ValveSize by clicking on a row **** A rule of thumbis to only pickValve Sizes thatare less than or equal to the line size, but not greater than the line size.In this case, wehave decided tolook at a 2 valve (which is our line size).3. Click on Graph
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1. Locate each conditionsCv2. Check to see if all the points fall within your desired rangeof travel. *3. If values out of range, go backand try a different valve type or size.4. If in range, click Close and continue. * These values are betweenour desiredrange of travel.(20-80%)
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Note: Very basicvalve attribute info is available.Note: Moredetailed info can be compared In the spreadsheetby clicking in theShow section.Click on ValveConstruction
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1. Ignore fields to theright of locked fields* * These fieldsare only foroverriding thevalues to the leftand are used to customize a valve.2. Click Standard forBody Material ** ** Standardreduces the listof materialsto those most commonlyused foryour valve, rather than presentingan exhaustive list of all FishersMaterials(presented indrop downs)which may not be a proper fit for your needs.
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1. Select a body materialfrom the reduced list * * In this case, we selected WCC Steel.2. Click Ok
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1. Click Standard for theType of Bonnet
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1. Select a bonnet typefrom the reduced list * * In this case, we selected Plain, as it isvery commonand a style that can be illustrated in FisherSpecification Manager DimensionalDrawings.2. Click Ok
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1. Click Standard for thePacking Material
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Use the drop downsto select what type of packingmaterial you want * * These dropdowns are listreducing andshould becompleted fromleft to right. In this example,we haveselected SingleGraphite.2. If you want to startover, click Reset.3. Click Ok
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1. Click Fisher TrimTables for Plug/Ball/DiskNote: Packing Type is filled inwhen PackingMaterial is filledin usingStandard.
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1. Determine which Trimattribute is most importantto your selection. 2. Click on the attributeheader to sort the informationby that attribute.3. Select a trim *3. Click Ok* We haveselected 205A
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1. Click Standard for Stem MaterialNote: Seat Material andCage/GuideMaterial is filled in whenPlug/Ball/Disk is filled in usingFisher TrimTables.Note: Notesare optional.They appear onthe ISA sheet.
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1. Select a StemMaterial* We haveselected S31600 (316 SST)2. Click Ok
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1. ClickActuator Selection
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1. Fill out Actuatorinformation (empty fields).2. Click on PositionerNote: ActuatorSizing isavailable, but notrequired. (Seeexplanation inblue) See the tutorial Sizingan Actuator for more help.
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1. Fill out Positionersection ** The followingsections areoptional. Theysimply go on thespec sheet andare not relevantto valve sizing.2. Fill out I/P Transducers Sec.3. Fill out Air SetRegulator Sec.4. Check whichaccessories you want.Note: TheFavorites sectionallows a userto save configurationsthat they likeor use often. It is not necessary.5. Click Additional Accessories.
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1. Fill out SolenoidValve section *Note: Titles in parentheses arereferring to the fields below them.2. Fill out LimitSwitch section3. Click on ISASheet* Again, thesesections are optional.
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1. Fill in anyadditional information ** Much of thissection is leftunfilled by the program. Clickon a cell and type to fill it in.Also, customerinformation canbe entered herevia the Profile- User section.2. Scroll down and double check informationpertaining to the valve. **** At this point, it is nice to addnotes forclarification oradded info. Seethe How Do I..?section of Helpto learn aboutadding notes
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A valve has beensized, and a spec sheethas been created.Youre Done!You can now print yourProjectsave itadd a another tagor start a new project!
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Use the Back button to return to the Help System
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Continue clicking to repeat the tutorial