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Control Valve Design
Sizing Software
Control Valve Design
Sizing Software
#03-12 Block Aronia, Jalan Sri Perkasa 2
Taman Tampoi Utama
81200 Johor Bahru
Malaysia
SOLUTIONS, STANDARDS AND SOFTWARE
www.klmtechgroup.com
Introduction• A control valve is a variable orifice used to regulate the
flow of a process fluid in accordance with requirement of process.
• Control valve is most used final control element in closed loop.
• It is designed to absorb the proper amount of pressure drop to maintain system balance under all operating condition.
Introduction
KLM Technology Group Control valve program
assist in calculating control valve sizing, which
focuses on the engineering uses of fluid
properties in the process industries.
Control valve program considers:
� Liquid flow
� Vapor flow
Introduction
Liquid Flow
Vapor Flow
Perform Calculations
• Calculate either Control valve size, Flow rate or Pressure drop
• Calculate the cavitation index
• Calculate the noise level
• Supply typical valve data
• Supply or calculate the fluid properties at flow conditions
• Supply pipe sizes
• Use English or SI engineering units in any mixture
• Use mass or volume flow units
• Import process data
• Print a calculation sheet
• Save the data
Control Valve Calculation for Liquids
Engineering Units
Fluid Properties
Calculation Options
Editing Data
Filing and Moving On
Engineering Units
Mass flow – English units
Ex. Pounds per hour and degrees Fahrenheit
Volume Flow – English units
Ex. US gallons per minute and degrees Fahrenheit
Mass Flow – SI units
Ex. Kilograms per second and degrees Celsius
Volume Flow – SI units
Ex. Liters per second and degrees Celsius
Engineering Units Cont’d
User file units
It is used to customize or change to required units that can be
implemented by selecting the option Review units
Review units
It shows the available options and the current unit selection.
To change units :
• Select the required units
• Select OK or
• Save to record the desired units to computer only
Fluid Properties
• Enabled when the pressure and temperature
are entered
• Available :
� Pure Liquids
�Mixtures
Fluid Properties Cont’d
Pure Liquids
• Find the desired fluid name
• Select (or double-click) it
• The fluid properties will be entered
Fluid Properties Cont’d
Mixtures
• Select the first component
• In the component box, enter the percentage
• Continue until the remaining percentage equals zero
• Click calculate button in the component box and the program
will calculate and enter the mixture values
Calculate
To obtain calculation results, it can be done by
click the Case button. Then, the output data will
display the results.
Calculation Options
Calculation options are
• Valve size
• Flow rate
• Pressure drop
Filing and Moving On
• Program menu – It clears the calculation and returns to the main menu.
• New – It clears the screen for a new calculation.
• Save - It saves a new record if not previously saved or saves changes to an existing record to database. It is also used for saving temporary data, thus, the recorded data can be done printing calculation process.
• Export data – It saves input and output calculation record in *csv file.
• Import data – It opens *csv file record.
• Print calculation – It is enabled after calculation and save is made. It displays the screen to print a calculation.
• Exit – It leaves the program
Pressure Loss Calculation for Gasses
Engineering Units
Fluid Properties
Calculation Options
Editing Data
Filing and Moving On
Engineering Units
Mass flow – English units
Ex. Pounds per hour and degrees Fahrenheit
Volume Flow – English units
Ex. Standard cubic feet per minute and degrees Fahrenheit
Mass Flow – SI units
Ex. Kilograms per second and degrees Celsius
Volume Flow – SI units
Ex. Standard cubic decimeters per second and degrees Celsius
Engineering Units Cont’d
User file units
It is used to customize or change to required units that can be
implemented by selecting the option Review units
Review units
It shows the available options and the current unit selection.
To change units :
• Select the required units
• Select OK or
• Save to record the desired units to computer only
Fluid Properties
• Enable when the pressure and temperature are
entered
• Available :
� Saturated Steam
� Superheated steam
� Pure Gas
�Mixtures
Fluid Properties Cont’d
Pure Gasses
• Find the desired fluid name
• Select (or double-click) it
• The fluid properties will be entered
Fluid Properties Cont’d
Mixtures
• Select the first component
• In the component box, enter the percentage
• Continue until the remaining percentage equals zero
• Click calculate button in the component box and the program
will calculate and enter the mixture values
Calculation Routines
Liquid
• Calculate preliminary valve sizing coefficient
ρ⋅∆=
P
W
preVC 3.63
• Calculate Reynolds Number Factor
Where,
and
Calculation Routines
655.0
358.0044.1
−=
VT
VSR
C
CF
6667.0
23500
1
∆⋅⋅⋅
=PSG
W
FC
SVS
µ
1667.0
2
22
333.0
6667.0
1890
+
⋅⋅
=d
CF
F
FF VL
L
dS
Calculation Routines
• Calculate the final valve size
For turbulent flow
For transition flow For laminar flow
For Choked or flashing flow
PF
VinaryCe
VC
limPr
=
RF
VinaryCe
VClimPr
= VSCVC =
ρ⋅⋅=
vcPLPF
WVC 3.63
Calculation Routines
Gas
• Calculate the preliminary valve size
ρ11
3.63 PX
W
preVC =
Calculation Routines
• Calculate the final size
Normal condition
Critical condition
YPF
VinaryCe
VC
limPr=
YPPF
MWTX
kF
ZTW
VC
⋅⋅⋅
⋅⋅⋅
=1
3.19
Calculation Routines
• Calculate the minimum size for sonic velocity
MW
T
P
Wd 1
2
0454.0min
=
Calculation Routines
Nomenclature
Cv = Valve sizing coefficient, dimensionless
d = Nominal valve size, inches
D1 = Inside diameter of inlet piping, inches
D2 = Outside diameter of inlet piping, inches
= Fluid density, lb/ft3
Fd = Valve style modifier, dimensionless
k = Ratio of specific heats, dimensionless
Fk = Ratio of specific heats factor, dimensionless
FL = Rated pressure recovery factor, dimensionless
FLP = Combined liquid pressure recovery factor, dimensionless
FP = Piping geometry factor, dimensionless
FR = Reynolds number factor, dimensionless
MW = Molecular weight, dimensionless
Ms = Mach number, dimensionless
P1 = Upstream absolute pressure, psia
P2 = Downstream absolute pressure, psia
Pc = Critical pressure, psia
Calculation Routines
Nomenclature (Cont’d)
PVAP = Vapor pressure, psia
ΔP = Valve pressure drop, psia
SG = Spesific gravity, dimensionless
SL = Sound pressure level, dBA
SLG = Gas property factor, dBA
t = Pipe wall thickness, inches
T = Absolute upstream temperature, deg R
Re = Reynolds number, dimensionless
W = Mass flow, lb/hr
X1 = Pressure drop ratio, dimensionless
XT = Rated pressure drop ratio factor, dimensionless
XTP = Value of XT for valve/reducer assembly, dimensionless
Y = Expansion factor, dimensionless
ɳ = Acoustic efficiency, dimensionless
Calculation Printout
• This program will print the input and output calculation data and one associated comment. The comment is included in the data sheet for reference purposes.
• It also creates the default printout headings. The headings are printed at the top of all printouts.
• File � Save � Print Calculation
Calculation Printout , Cont’d
Save. Saves the headings
Cancel. Returns to the calculation form without printing
OK. View report calculation, then prints the headings and calculation using the Windows Print Manager.
Calculation Printout , Cont’d
Importing Data into a Calculation
To Import process data into a calculation :
Make a sequential file for each calculation. Files to have a
filename(Suggest the tag number) with no extension (eg CV-
LiquidFlow-3).
• Take the Import data menu option.
Importing Data into a Calculation , Cont’d
• Find the required file. (Using standard Windows procedures)
• Select the file and the data will be loaded.
• If the import is successful it will appear
the following information
• Proceed with the calculation and save the data.
Installation
• Click Hydraulics Ver1.0_Setup.exe � Click Next
• Enter your registration (Name, Company and Registration code), click Next
Installation Cont’d
• Click Next on Directory page
Installation Cont’d
• Install On process
Installation Cont’d
• Install .NET Framework 4 for requirement
system( if NOT Exist on PC)
• Install Crystal Report for requirement system
(if NOT exist on PC)
Installation Cont’d
• If the installation is complete it will display a confirmation
• Click Exit
Installation Cont’d
• Enter password application and click OK
• Applications will be open
In designing equipment and piping systems, engineers
need control valve sizing calculation properly by various
variables such as flow rate, pressure drop, valve and
pipe size, fluid properties, etc. Valve type is also
considered in control valve calculation.
KLM Control valve program is very useful to calculate
proper valve size, flow rate, and pressure drop based on
conditions inputed.
Control Valve Design and Sizing Software
Piping Hydraulic Line Design and Sizing Software
This is one of the best stand alone control valve sizing
programs available.
1. Liquid and gas, steam or vapor flow options.
2. Multiple units of measure choices - mass or volume
3. Physical properties based on chosen temperature
and pressure
4. The ability to estimate noise levels
Purchasing Software
Control Valve Design and Sizing
Program
USD $ 299.95
For detailed information :
