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EGG-SSRE-9777

June 26, 1991

TECHNICAL REPORT A, s

ISOLATION VALVE ASSESSMENT (IVA)

SOFTWARE VERSION 3.10

USER'S MANUAL

PROJECT NUMBER 015488

Prepared for the.-.

U.S. NUCLEAR REGULATORY COMMISSION
- .N- , '-

Copyright © EG&G Idaho, Inc.. All rights reserved.
TABLE OF CONTENTS

GETTING STARTED. iii

Chapter 1

INTRODUCTION .1

1.1 Software Notice. 2

1.2 Software Development. 2

Chapter 2

INSTALLATION . . 3

2.1 System Requirements. 3

2.2 Installing the Program. 3

Chapter 3

STARTING IVA. 4

Chapter 4

4. USING IVA . . 5

4.1 Cursor Movement. 5

4.2 Function Keys. 6

Chapter 5

DATA ENTRY SCREENS .14

5.1 Mode 1 and 2, Data Screen 1 .14

5.2 Mode 1, Data Screen 2 .15

5.3 Mode 1, Data Screen 3 .19

5.4 Mode 1, Data Screen 4 .22

5.5 Mode 2, Data Screen 2 .31

Chapter 6

ESTIMATED RESPONSE SCREENS . .33

6.1 Mode I Results Screen .33

6.2 Mode 2 Results Screen .34

Chapter 7

MOV EQUATIONS .35

Chapter 8

LIMITORQUE OPERATOR RATINGS .52

Chapter 9

REFERENCES . .53

EG&G Idaho, Inc. ii June 18. 1991
GETTING STARTED

The Isolation Valve Assessment (IVA) software is a package of tools for

evaluating operator sizing criteria for 5° flexwedge motor-operated gate valves __

in the closing direction utilizing Limitorque operators. Gate valves of the

flexwedge design are typically the most common design installed in systems

where flow isolation capability is desired.

IVA software increases the user's efficiency by providing the following

features:

* easy-to-use data entry screens

* automatic calculation of intermediate variables

* valve stem thrust estimates using both the standard industry

equation and the INEL equation and comparisons with operator

capabilities

* assessment of low flow, low differential pressure valve testing

* graphical displays of valve performance estimates relative to either

operator capabilities or INEL test results.

EG&G Idaho, Inc. iii June 18.1991
LJ Chapter 1

INTRODUCTION

The general data entry screen is the first screen that the user encounters upon

starting up the IVA program. On this screen, the user enters valve parameters, 0

operator characteristics, and operator motor information. The user also uses this { -

screen to select one of two possible assessment modes. The first mode'estimates

the maximum stem thrust and assesses the capability of theequipment. The second 0-7°'

mode assesses low flow, low differential pressure diagnostic test results. The

general data entry screen is the first screen for both modes. The first mode

contains three additional data entry screens for valve specific data and operator

specific mechanical and electrical data. The second mode contains one additional

data entry screen for diagnostic test specific data. The data from both modes 'is in

the same data base such that the user can easily toggle from 'one mode' to the other. :~~~ I. -.- ... i; ............. ..

Each mode contains a results screen that summarizes the various calculations and

displays the results. The results screen for the first mode displays estimated values

for stem thrust, operator torque,'and motor torque calculated using the industry

and INEL equations. The motor torque, operator torque,'and stem thrust which can

be developed by the operator are also displayed. The results screen for the second

mode displays an evaluation for validating and extrapolating results from low flow

diagnostic tests. The results of that assessment determine whether extrapolation of

low flow test results is possible.

Various graphs can be displayed in either mode. The first mode displays four

graphs. The first graph is a plot of required stem thrust versus available stem thrust

as a function of stem factor for nominal and degraded voltage conditions; The

second graph provides the same information as a function of stem to stem nut

coefficient of friction. The third plot displays the conversion of ojperatoriorque to

stem thrust for a number of stem to stem nut coefficients of friction. The fourth - -

plot relates the stem thrust to torque switch settings for a number of stem to stem

nut coefficients of frictions. The second mode displays' a single graph reilating an

evaluation of the low flow diagnostic test results,- compared to the valves'tested by

the INEL, for possible extrapolation to high flow conditions.

EG&G Idaho. Inc. I June 18, 1991
Chapter 1

INTRODUCTION

, N , - 2,

ui .i~

1.1 SOFTWARE

NOTICE

1.2 SOFTWARE

DEVELOPMENT

This report was prepared as an account of work sponsored by an agency of the

United States Government. Neither the United States Government nor any agency

thereof, or any of their employees, makes any warranty, expressed or implied, or

assumes any legal liability or responsibility for any third party's use, or the results

of such use, of any information, apparatus, product or process disclosed in this

report, or represents that its use by such third party would not infringe privately

owned rights. The views expressed in this report are not necessarily those of the

U.S. Nuclear Regulatory commission.

This software was been developed by the Idaho National Engineering Laboratory

under contract to the Office of Nuclear Regulatory Research, U.S. Nuclear

Regulatory Commission. Any comments pertaining to the software should be

directed to one of the following:

John C. Watkins

Idaho National Engineering Laboratory

EG&G Idaho, Inc.

P.O. Box 1625 MS-2403

Idaho Falls, Idaho 83415

Robert Steele, Jr.

Idaho National Engineering Laboratory

EG&G Idaho, Inc.

P.O. Box 1625 MS-2406

Idaho Falls, Idaho 83415

Kevin G. DeWall

Idaho National Engineering Laboratory

EG&G Idaho, Inc.

P.O. Box 1625 MS-2406

Idaho Falls, Idaho 83415

(208) 526-0567

(FTS) 583-0567

(208) 526-6409

(FTS) 583-6409

(208) 526-0313

(FTS) 583-0313

EG&G Idaho. Inc. 2 June 18. 1991

.. . ........... .......... ....... .
L,. Chapter 2 1 - -\ I- I -

-

INSTALLATION

2.1 SYSTEM

REQUIREMENTS

2.2 INSTALLING THE

PROGRAM

IVA was developed to operate on an IBM personal computer or compatible.

PC/MS-DOS 3.1, or newer, and an 80 column display should be used. In order

to display the various plots, the system also requires graphics capabilities. Best

results are obtained with systems that have VGA color capabilities. However,

the software has been successfully operated on systems with EGA or CGA

screen modes, on systems with Hercules graphics cards, or with VGA monochrome capabilities.

You can run IVA from either a floppy disk or a hard drive, but performance is t

better with a hard drive. To install the program on a hard drive, perform the

following steps: t

1. Create a subdirectory for the program's execution files. This is done

by typing MD\xxxx where Xxxx is a 1 to 8 character name for the h

new subdirectory.

2. Copy the IVA execution files to the new subdirectory:

* insert the IVA disk into either a 51/4" or 31/2" floppy drive,

depending on the size of your IVA program disk.

* shift to the drive the IVA program disk was inserted into by

typing X: where X is the letter designation of the floppy drive

containing the IVA program.

* Type COPY *.* C:\XXXX

If you want to be able to start IVA from any hard disk subdirectory, add the

name of the subdirectory that was created for IVA to the DOS PATH command

string that exists in your AUTOEXEC.BAT file and reboot the PC.

EG&G Idaho, Inc. 3 June 18,1991

q1
Chapter 3 7.

STARTING IVA

To run IVA from a hard disk:

1. Shift to the hard drive by typing C:.

2. If the subdirectory that IVA was copied to does not exist in the

DOS PATH, change to the subdirectory containing the IVA executable files by typing CD\XXXX.

3. Type IVA.

To run IVA from a floppy disk:

1. Ensure that the DOS commands can be executed from a floppy

drive by verifying that the complete subdirectory name (drive and

subdirectory) containing the DOS commands is contained in the

PATH command string that exists in your AUTOEXEC.BAT file.

If the complete subdirectory name is not present, add it and reboot S- -

the machine.

2. Shift to the floppy drive containing the IVA executable files.

3. Type IVA.

When the program successfully loads, it creates a blank, unnamed data file, and -

the general data entry screen appears. Instructions for the use of the entry

screens, along with procedures for loading and saving data files, are provided

in the following sections of this manual.

EG&G Idaho. Inc. 4 June 18, 1991
L; Chapter 4 . L.. .-3 

USING IVA

When IVA is started, the general data entry screen is the first screen that the

user encounters. Two data entry modes can be selected from this screen. The

default selection when the general data entry screen first appears is Mode 1,

which is used to estimate the maximum stem thrust of a valve and assess the

capability of a MOV. Mode I consists of three data entry screens in addition to

the general data entry screen. The second mode (Mode 2) consists of one data

entry screen (in addition io' thi general data entry screen) and is used to validate and extrapolate the results of low flow diagnostic test data. All the information needed to complete the IVA MOV calculations are input through these

data entry screens. Operating the IVA program is very direct:

* Enter the data required per the current mode or press F3 to retrieve

a previously saved data file. The upper left comer of each data

screen identifies the use of the data field the cursor currently resides

in or whether the data field is optional.

* Press F5 to view the estimated response for the mode selected. The

extent of daita displayed will depend on the amount of data input to

the program. .. '

* Press F6 to select and view the various plots for the mode selected.

The availability of plots will 'depend on the amount of data input to

the program.m

* Press F4 to print out a hard copy of the current MOV data and calculations for the mode selected.,.

* Press F8 to save the current data and, if desired, exit the program. K r.

You can move through the various data entry screens using the PAGE-DOWN

and PAGE-UP keys. Entering PAGE-DOWN at the last data'entry screen. L :

brings up the general data entry screen:Likewise,'enterinePAGE-UP at the

general data entry screen brings'up the last screen for whichever mode has'

been selected.

You can move from field to field in any of the data entry screens using the.s

UP-ARROW or DOWN-ARROW keys. , _ '

* ._ f .vx

4.1 CURSOR

MOVEMENT

I

., ., I. , .; -. I'. ! , I i .., I.

EG&G Idaho. Inc. 5s June 18. 1991
Chapter 4 A * - ".. L

USING IVA

You can move within a field using the LEFT-ARROW, RIGHT-ARROW,

HOME, END, and BACKSPACE keys. Data within a field can be edited

using the INSERT and DELETE keys.

Some data entry fields are bracketed by < > characters. This indicates that for

that field, you can a toggle through a series of preset values. With the cursor in

a toggle field, you can view and select using the LEFT-ARROW and

RIGHT-ARROW keys. Note that several of the toggle fields have been

included for future expansion of the program. As such, these fields contain a

single option and do not appear to function. The valve type (Gate) on the

general data sheet is one example of a toggle field which does not appear to

function.

4.2 FUNCTION

KEYS

Fl

Help In formation

This function displays context sensitive help information. If the help screen

contains more information than will fit on a single screen, the bottom row of

the screen will state that the additional information can be viewed using the

UP-ARROW, DOWN-ARROW, PAGE-UP and PAGE-DOWN keys. If

no context sensitive help information is available for the current cursor

location, or if you press F1 while the help information is being displayed, the

Function Key Definition help screen appears. (Thus, pressing Fl either once or

twice will bring up the screen that defines the function keys.) Pressing any

other key will return you to the data entry screen you were in when you

pressed Fl.

Function Key Definitions Activate from any data entry screen

Fl

F3

F5

F7

F9

EQUATIONS

Help Information Color/Graphics Mode

CHANGE DIRECTORY

File Menu Print Active Data

Estimated Response Graphics Menu

Save File Save/Clear/Exit

Table Up (Ctrl T) Table Down (Ctrl 4)

F2

F4

F6

F8

FIO

Legend: UPPER CASE - SHIFT + FUNCTION KEY

lower case - Function Key only

EG&G Idaho. Inc. 6 June 18, 1991
L Chapter 4

N ~~~~~ .-

USING IVA

Shift-F1

Equations

This function displays a series of 17 text screens that provide the user with the

underlying formulas used by IVA. To view each equation, use the PAGE-UP

and PAGE-DOWN keys. See'the MOV Equation section of this manual to

review these equations as they appear on screen. - -

F2

Colors/Graphics

Mode

F3

File Menu

This function lets you select and save default screen colors for text screens and

graphs. You'can select various color combinations for the foreground, background, and window displays by moving the cursor to the desired item using

the UP-ARROW and DOWN-ARROW keys, and then using the LEFTARROW and RIGHT-ARROW keys to make the selection: Examples of the

current color combinations are shown next to the current settings. Colors for

the various graphics can be set in the'same manner. In addition, the graphics

mode can be selected, subject to the capabilities of the system. When finished,

press Esc to save the settings.

This function displays a listing of the available MOV data files in the current

directory and provides four file management options at the bottom of the

screen. Use the LEFT-ARROW, RIGHT-ARROW, UP-ARROW, and

DOWN-ARROW keys to highlight the desired data file and then select the

number of one of the following file management options. To unload a file or

clear the current data being edited so that new data can be entered into the program, see the discussion under section F8, Save/Clear/Exit.

1. Load Loads the data in the highlighted file into the current

data entry screens.

2. Delete Deletes the highlighted file after the user confirms the

desired action.

3. Rename Allows the user to enter a new name for the highlighted file. If a file exists with the same name, the

user is prompted on whether the existing files should

be overwritten or not.

fl;. ';',

a:.. _,~ .-

&.-

t -

i- . .

I _ ...

4. Copy Allows the user to copy the information in the highlighted file to a different file. If a file exists with the

same name, the user is prompted on whether the

existing file should be overwritten or not.

. . ..

EG&G Idaho, Inc. 7 June 18, 1991
Chapter 4 it -t--L -" L-- . . 2=1

USING IVA

Shift-F3

Change Directory

This function allows you to enter the name of an alternate data subdirectory. If

the requested subdirectory does not exist, IVA will prompt the user on whether

to create it or not. Subsequent file actions will occur within this subdirectory.

All subdirectories created by IVA will exist under the directory that contains

the IVA executable files.

F4

Print Active

Data

EG&G Idaho. Inc.

Use this function to print out the input and results data for the current MOV

being assessed. The actual output will depend on which mode is currently active, as selected on the general data entry screen. The following three pages

provide examples of the output that is available. The first two pages present

output when Mode I is active, the third page when Mode 2 is active. Note that

a Hewlett Packard LaserJet or compatible printer is required.

N

8 June 18. 1991

. .. . . .
LiJ Chapter 4 ' -4 N- N

USING IVA

IVA-3.10 Motor Operated Valve Capability Estimates Date:

- - - Page: oT2

Plant/Unit:

System:y s

Nwnber:_ __ P&10 Coord:

Valve Make:_ Type: Size:

Oper. Make: Hode1: i NunaeF

Comments:

Design Basis Conditions - I

Pressure (psig): D- P (psid):- - Packing (lbf):_- Disk Factor: Subcooling:_ _

Valve Data

Orif Dia (in : Stem Dia (in): Seat ID (in):

Drlf Area(int): * Stem Area(in' * SeatOD (in:_- Seat Angle (deg):__ Seat MD (in):

Operator Mechanical Data

Stean Thds/in: _ Lead Desc.: Pitch: Lead:

Stemn Friction: Stie or: Oper Ratio:_ Stroke Length In): Time (sec): -. . Speed (in/min):7

Operator Electrical Data - Motor Rated Source Voltage Speed (RPM : - Montamal: -. -- -Pullout Eff:_ Torque (ft-lbf: Minimunm:- App Factor:-

Voltage (volts : Maximun: Stall Eff:-

Stall Torque (ft- lbf): Power:-

Stall Current (amps): Contaimriinaemperature ( F): -

Valve/Operator/Hotor Requirements

INEL Estimate Industry Estimate

Disk Load (lbf) Rejection Loads (lbf) Packing - Weight Loads (lbf) Req'd Sten Thrust (lbf) Req'd Operator Torque (ft-lbf) Req d Motor Torque (ft-lbf)

Unit Capabilities Unit Requirements

Available at Available at Available at INEL Industry Max. Voltage Nom. Voltage HMn. Voltage Estimate Estimate

Stem Thrust

Operator Torque -otor:Torque:. ;

Voltage Drop Torque Switch

Mode 1 Printed Output, Page 1 of 2

r

, w.. -

z

EG&G Idaho, Inc. 9 June 18.1991
Chapter 4 ~~J1LiI -

USING IVA

IVA-3.1O Motor Operated Valve Capability Estimates Date:

Time:

Page:2 f2

Plant/Unit:

System:__

Number: P&ID Coord:

Valve Hake:- Type: Size:

Oper. Make: Model: Number:

Data Torque Switch Operator Data Torque Switch Operator

Number Setting Torque Number Setting Torque

1 11

2 12

3 13

4 14

5 15

6 16

7 17

8 18

9 19

10 20

Wire Size

Data Lengt

Number Cable Type (t) AWG TCir Nils

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Mode 1 Printed Output, Page 2 of 2

EG&G Idaho, Inc. 10 June 18, 1991
Chapter 4 L-., - I .L , . " -!-.IUSING IVA

IVA-3.10 Motor Operated Valve Test Assessment Date:'

.;Time:

Page I of I

Plant/Unit:

System:

Number: P&ID Coord:

Valve Make: - Type:-Size:_-

Oper. Make:___ _ ,odel NiIF

Valve Data

Seat Angle (deg):__ Stem Dia (in):_ -Seat ID (in):_-

Stem Area(in2): Seat 0O (in):

Seat MD (in):_

Recorded Test Conditions

Pressure (psig):_ DP (psid): 'Packing (lbf):'

Stem Thrust (ibf):_ _ Fluid SubcToolinig:

INEL Estimated Valve Response ; - -

Total Disk Load - - 'Normalized Force

Vertical (bs):_ Normal. lbs):

Horizontal (lbs):____ Sliding Mbs):

Sliding Force Within Limits of INEL Data ( to ):-

Is the test valve typical of valves tested by the INEL:

F5

Estimated

Response

F6

Graphics Menu

.~~- . ..-................. .,;:,

Mode 2 Printed Output, Page 1 of 1.

This function displays the estimated response screen, showing the results of

IVA program calculations, depending on which mode is active. These results , D

screens will be explained later in this manual.

This function displays a mode-specific menu from which you can select one of

several plots. All lines are color coded, and the colors can be changed using the '

F2 Color/Graphics Mode function, subject to the capabilities of the system.

Mode 1, Graph 1: Required and Avallable Thrust vs Stem Factor

The tw6 horizontal lines identify the thrust required to close the valve, as estimated using the industry and the INEL equations. The vertical line identifies

the estimated stem factor for the operator as it appears on Data Screen 3. The

curved lines identify the thrust available from the operator under nominal and

degraded voltage conditions, including the effects of voltage losses in the

cables from the power source to the MOV.

EG&G Idaho, Inc. 1l June 18. 1991
Chapter 4

USING IVA

Mode 1, Graph 2: Required and Available Thrust vs

Stem Nut Friction

This option is identical to Graph 1, except that the various thrusts are plotted

against the stem to stem nut coefficient of friction, which appears on Data

Screen 3, instead of the stem factor.

Mode 1, Graph 3: Conversion of Operator Torque to Thrust

The two horizontal lines identify the thrust required to close the valve as estimated using the industry and the INEL equations. The vertical line identifies

the maximum available operator torque at degraded voltage conditions, including the effect of voltage losses in the cables from the power source to the

MOV. The various sloping lines represent the conversion of operator torque to

thrust assuming several stem to stem nut coefficients of friction.

Mode 1, Graph 4: Relationship of Torque Switch Setting to Thrust

The two horizontal lines identify the thrust needed to close the valve as estimated using the industry and the INEL equations. The vertical line represents

the maximum allowable torque switch setting at degraded voltage conditions,

including the effect of voltage losses in the cables from the power source to the

MOV. The various sloping lines represent the available thrust versus torque

switch setting for several stem to stem nut coefficients of friction.

Mode 2, Graph 1: Relationship between Sliding and Normal

Forces

A solid sloping line represents the best estimate relationship between sliding

and normal forces acting on a disk. The two sloping dashed lines represent the

limits observed in the INEL test data. The circle represents the estimated

sliding and normal loads acting on the disk during a test. - -

F7 This function lets you save the current data file. A window prompts you as to

Save File whether the current file should be saved. If the response is Yes, a second window opens and identifies the current file name, if one exists. You can either use

the same file name or change the file name prior to saving the file. If a file exists with the same name, a third window opens and prompts you on whether the

existing file should be overwritten or not. Answering Yes will complete the

save operation.

EG&G Idaho. Inc. 12 June 18, 1991
L. Chapter 4 L

USING IVA

F8

Save/Clear/Exit

This function lets you save the current data file and exit the program. A window prompts you as to whether the current file should be saved as discussed

under F7, Save File. A final window then opens and prompts you on whether

to exit the program or not. A No response at this point will clear the current

data file and start a new file.

If you want to exit the program without saving the current file, answer No to

the Save File window and Yes to exit the program.

If you want to clear the current file without saving the data and without exiting

the program, answer No to the Save File window and No to the Exit Program

window.

F9/F10

Table Up!

Table Down

Use these functions to move through the multiple rows of the data tables to

enter data in either the torque switch calibration table or the cable description

table on Data Screens 3 and 4 of Mode 1.

On some machines, the CTRL UP-ARROW and CTRL DOWN-ARROW

keys can also be used to move through the tables to enter data. This capability

is machine dependent and is left for the user to determine if this capability is

available on a given machine.

L * ,

. f;

EG&G Idaho, Inc. 13 June 18. 1991
Chapter 5 r .-  -' ..

DATA ENTRY SCREENS

5.1 Modes 1 and 2,

Data Screen 1

The first data entry screen records general data associated with the MOV. This

data plays no part in the actual calculations. This screen is common to both

modes, and it is from this screen that you select either Mode I (capability

assessment) or Mode 2 (validate and extrapolate). Such items as the plant and

system the MOV is located in, the MOV number, the grid location on P&lDs

and general valve and operator information can 'also be documented. A' comment field is also provided.

File: - er a ( t o

Variable Use:

General Data (Sheet 1 of 4)

Plant/Unit:

System:

Nmtber: -- -

Valve Manufacturer:

Type:c

Operator Manufacturer:<

Model:

P&ID'coord:

31. Size:

Number:

Mode:'

Comments:

Fl-Help F5-Valve Response PgUp/PgDn-new data sheet

Mode Determines what type of input will be entered, calculated, printed and graphically displayed. : . . . ' ';I 

Available options are

* Capability Assessment (Mode ])

* Validate &'Extrapolaite (Mode 2)

Use the LEFT-ARROW and RIGHT-ARROW keys 'to set'this value.

I Cn

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IMX0

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. (A 22

EG&G Idaho. Inc. 14 June 18, 1991

-. _.___._.. ._...

.
Chapter Li 5

DATA ENTRY SCREENS

5.2 Mode 1,

Data Screen 2

The second data entry screen in Mode 1 is used to record specific valve data

and system conditions needed for design basis stem thrust calculations. Critical

parameters include the maximum system pressure and valve differential pressure, disk factor, packing load, orifice and stem areas/diameters, the stroke

length, the valve seat inside/outside/mean diameters and the subcooling of the

fluid at design basis conditions.

You need not enter both the area and the diameter of the orifice and the stem. If

you enter a diameter, then the computer calculates the corresponding area.

Likewise, if you enter an area, then the computer calculates the corresponding

diameter.

File:

Variable Use:

Pressure (psig):

Differential Pressure (psid):

Orifice Diameter (in):

Area (sq in):

Stroke Length (in):

Seat ID (in):

Seat GD n):

Mean Seat Dia In : Seat Angle (deg)< 3

Fluid Subcooling:t

Valve Data (Sheet 2 of 4)

Disk factor:

Packing Load (lbf):

Stem Diameter (in):

Area (sq in):

FI-Help F5-Valve Response PgUp/PgDn-new data sheet

Pressure (psig)

Differential

Pressure (psid)

Disk Factor

The maximum upstream pressure that the valve must close against as specified

in the design basis documents.

The maximum differential pressure that the valve must close against as specified in the design basis documents. If this value is not specified, enter the maximum upstream pressure again as the maximum differential pressure.

A factor that is dependent on the valve design.

EG&G Idaho, Inc. 15 June 18, 1991
:. ... Chapter 5 i-'. - N '

L...L. It- _j__

DATA ENTRY SCREENS

The following' are typical values of disk factors being used by the industry:

0.2 for parallel seat double disk gate valves

0.3 to 0.5 for wedge gate valves

_ -

Packing Load

(ibO)

The maximum packing drag as specified in the design basis documents. The

packing drag depends on the packing design, gland nut torque, and direction of

operation.

The following' are maximum packing drag estimates being used by the

industry based on the size of the stem:

Packing Drag (lbf)-

Stem Diameter

Flexible

Asbestos Graphite

Up to 1" inclusive 1000 700-1200

Greater than I" to 1" inclusive' - 1500 I 1 I 1 . -_ . . . o

Greater than I " to 2" inclusive 2500

Greater than 2" to 4" inclusive 4000

1000-1800

1600-3000

- ; 3500-6000

Greater than 4" 5000 ... I . ' .; 4000-7000

Note: The validity of these values for a specific application must be verified

with the valve and/or packing manufacturer.

The cross-sectional diameter of the valve port. Use the actual port diameter of

the valve as a minimum. Larger port diameters introduce conservatism into the

final estimated stem thrust.

Orifice Diameter

(Inch)

The computer will calculate the valve port diameter if you enter the valve port

area. - - -

The cross-sectional area of the yalve port. Use the actual port area of the valve

as a minimum. Larger port areas introduce conservatism into the final

estimated stem thrust.

Orifice Area

(Inch2

)

,,car

I '.-

C* 0

C),

M 

.M

IM11

 CD i - - ;..l The computer will calculate the valve port area if you enter the valve port

diameter.

EG&G Idaho, Inc. 16 June 18, 1991
Chapter 5 . L  -a -_ 7 -4=j " .-

DATA ENTRY SCREENS

Stem Diameter

(inch)

The cross-sectional diameter of the valve stem. Use the stem diameter as

supplied by the valve manufacturer.

The computer will calculate the stem diameter if you enter the stem area.

Stem Area

(Inch2)

The cross-sectional area of the valve stem. Use the stem area as supplied by

the valve manufacturer.

The computer will calculate the stem area if you enter the stem diameter.

Stroke Length

(inch)

The distance the valve disk travels from the fully open to the fully closed position. Use the valve stroke length supplied by the valve manufacturer. The computer will calculate the stroke length if you enter the valve stroke speed and the

stroke time.

If the above information is not available, you can estimate the stroke length as

110% of the valve orifice diameter.

Seat ID

(inch)

Seat OD

(inch)

The inside diameter of the valve seating surfaces. The seat inner diameter

should be measured in the plane perpendicular to the valve stem. If the seat

inner diameter is not available, you can use the valve orifice diameter as an

approximation.

The outside diameter of the valve seating surfaces. The seat outer diameter

should be measured in the plane perpendicular to the valve stem. If the seat

outer diameter is not available, you can use the valve orifice diameter plus two

times the seat width as an approximation.

The following seat widths were observed for the flexwedge gate valves tested

by the INEL. These measurements may be of some assistance in estimating the

seat width of similar valves.

Seat Width (inch )

Valve Size

6 inch

900 lbf valve

0.125

600 lbf valve

0.135

0.377

10 inch 0.126 0.500

0.545

EG&G Idaho, Inc. 17 June 18.1991
I, Chapter 5 . -\ *'- j-,

DATA ENTRY SCREENS

Mean Seat

Diameter (Inch)

The average of the inside and outside diameters of the valve seating surfaces.

The computer will calculate the mean seat diameter if you enter the seat inner

diameter and the seat ouiei diameter.

Seat Angle

(degrees)

Fluid Subcooling

The angle of the valve seating surface relative to the valve stem. The seat angle

for a majority of flexwedge gate valves is nominally 5 degrees. Currently, IVA

is written to use this value only.

Fluid subcooling is the difference between the actual temperature of a liquid

and the saturation temperature of the liquid at the design basis pressure.

Two options are available:

I

I * Less than 70'F suibcooled (fluid near or at the steam temperature), and

* 70'F or greater subcooled (colder fluid).

If the actual fluid subcooling is unknown or is close to 70TF, or if additional

conservatism is needed in the estimated stem thrust, use a subcooling of 70'F

or greater. S.

Use the LEFT-ARROW and RIGHT-ARROW keys to set this value.

- ~ ~~~r'- '-.. ...

U'

CA 0

mm

I -..' ' : . " ,, - -I

EG&G Idaho. Inc. 18 June 18, 1991
Chapter 5

DATA ENTRY SCREENS

5.3 Mode 1,

Data Screen 3

The third data entry screen in Mode I is used to record specific mechanical

data for the operator, such as the stem pitch and lead, stem to stem nut coefficient of friction and stem factor, stroke time and speed, and the overall operator

ratio.

If you enter a threads/inch value and a lead description, the computer will automatically calculate the stem pitch and stem lead. If you directly enter a stem

pitch or lead, the threads/inch and the lead description fields will go blank. If

you enter a stem to stem nut coefficient of friction, the computer will calculate

the stem factor, and vice versa.

File:

Variable Use:

Threads/Inch: > Lead Description:<

Stem Pitch:

Stem Lead:

Operator Data (Sheet 3 of 4)

Close Limit:<

Stem Nut Friction:

Stem Factor:

Stroke Time (sec):

Stroke Speed (in/min):

Over All Operator Ratio:

Data Set Torque Switch

Number Setting

Operator

Torque

Fl-Help F5-Valve Response PgUp/PgDn-new data sheet

Threads/lInch

(TPI)

The number of threads that occur in one inch of the valve stem.

Twenty-two options are available:

* Blank (No entry),

* 1 to 6 threads per inch in thread increments, and

* 6 to 16 threads per inch in I thread increments.

The threads per inch is the reciprocal of the stem pitch. If you enter the stem

pitch or lead, this field will go blank.

Use the LEFT-ARROW and RIGHT-ARROW keys to set this value.

EG&G Idaho. Inc. 19 June 18, 1991
L, Li " -" -

DATA ENTRY SCREENS - -

Lead Description

Stem/Pitch

(inch/thread)

Stem Lead

(inch/stem

revolution)

The stem lead description describes the number of independent threads cut into

the stem. This can also be expressed as the number of apparent stemn threads

advanced for each revolution of the stem.

Four options are available:

* Blank (No entry),

* Single,

* Double, or

* Triple.

If you enter the stem pitch or lead, this field will go blank.

Use the LEFT-ARROW and RIGHT-ARROW keys to set this value.

The distance from the peak of one thread to the peak of an adjaceni thread.

*The stem pitch is the reciprocal of the stem threads per inch. If you enter the

stem threads per inch, the computer will calculate the stemn pitch. If you enter

the stem pitch, the stem threads per inch field and the lead description field

willigo blank.'. .

The distance the stem travels in one revolution of the stem-nut.

The stem lead is the product of the stem pitch times

* 1 for single lead threads,

* 2 for double lead threads, or . .

* 3 for triple lead threads. '

The computer will calculate te stem lead ifyoener'hI'-itI

stem lead description. If you enter thestern lead, thie stem threa'ds per inch field tM

and the lead description field will go blank. ~Z

EG&G Idaho, Inc. . .. 20 June 18. 1991
..'

Chapter 5

DATA ENTRY SCREENS

' \% ' I

U " -

Close Limit An entry stating whether the valve closure is controlled by a torque switch or

by a stem position switch.

Available options are

* Torque, or

* Position.

Use the LEFT-ARROW and RIGHT-ARROW keys to set this value.

Stem Nut

Friction

A coefficient of friction between the stem and the stem-nut that depends on the

material, the surface finish, and the lubrication between the stem and the stemnut.

The design basis stem to stem nut coefficient of friction will typically range

from 0.15 to 0.202. Conservatively, 0.2 is used to take into account the possibility of poor maintenance of the stem threads. However, lower and higher values have been calculated from the results of valve tests.

The computer will calculate the stem to stem nut coefficient of friction if you

enter the stem pitch, the stem lead, the stem diameter, and the stem factor.

Stem Factor A factor reflecting the conversion of operator torque to stem thrust. This factor

varies with stem diameter, pitch, lead, and the stem to stem nut coefficient of

friction.

The computer will calculate the stem factor if you enter the stem pitch, the

stem lead, the stem diameter, and the stem to stem nut coefficient of friction.

Stroke Time

(sec)

Stroke Speed

(inch/minute)

EG&G Idaho, Inc.

Use the valve stroke time specified in the technical specifications or as sized by

the operator manufacturer. The computer will calculate the stroke time if you

enter the valve stroke length and the stroke speed.

Use the valve stroke time supplied by the technical specifications or as sized by

the operator manufacturer. The computer will calculate the stem speed if you

enter the stroke length and the stroke time.

21 June 18, 1991

I
L' Chapter 5

DATA ENTRY SCREENS

Overall Operator

Ratio

The number of electric motor turns to stem nut turns. This is often listed as the

"RAr' number on the unit.` ' '; "'

Torque Switch

In formation

The computer will calculate the overall operator ratio if you enter the electric

motor rated speed (next screen), the stem lead, and the stroke speed.

Use the torque spring calibration data supplied by Limitorque or' data from

separate testing. If this information is available, enter the torque switch calibration data as a

* torque switch setting

* corresponding operator torque (ft-lbf). --

This information is used to estimate torque switch settings. If this information

is not included,' this feature of the program will not be available.

5A Model,

Data Screen 4

The final data entry screen in Mode I is used to record specific electrical data

for the operator, such as the power source, the source nominal, minimum and

maximum voltages, the motor rated speed, torque and voltage, the motor stall

torque and current, stall and pullout efficiencies, application factor, and the

temperature of the containment as design basis conditions. -

,The cable description fields allow information on the cable used to connect the

motor to its electrical source to be entered. IVA uses the data entered in the

length and cir mils fields to estimate the voltage drop caused by the connecting

cables. - - :

File:

Variable Use:

Power Source:c

Source Voltage:

% Minimum:

% Maximum:

Containment

Temp (OF):

* -, . .. Electrical Data (Sheet 4 ofA4)

Motor Rated Motor Stall

Speed (RPM: . Torque (ft-lbf)

Torque (ft-lbf) Current (amps).

Voltage (volts)_

App. Fact:

Pullout Eff:

Efficiency:

I . , 1 ,, _ ," j.'' 1' r.

!'M

;no

.~MM . .

Data Set . - -- ; Length 'Wire Size

Number Cable Description (ft) AWG cir ills

- .. - : .. , ,, .. , . J .. 

Fl-Help F5-Valve Response PgUp/PgDn-new data sheet

EG&G Idaho. Inc. 22 June 18, 1991
Chapter 5

DATA ENTRY

U I'l _% I-I

SCREENS

Power Source

Source Voltage

(volts)

Minimum

Voltage (%/)

Maximum

Voltage (%/)

Containment

Temperature r F)

Motor Rated

Speed (RPM)

EG&G Idaho, Inc.

The type of electrical power being supplied to the operator motor.

Available options are:

* AC-3N,

* AC-14I, or

* DC.

Use the LEFT-ARROW and RIGHT-ARROW keys to set this value.

The nominal voltage of the power source that supplies power to the operator

motor.

The minimum voltage supplied to the operator motor under degraded voltage

conditions.

Express as a percentage (0 to 100%) of the source voltage.

The maximum voltage supplied to the operator motor under maximum voltage

conditions.

Express as a percentage (100% or higher) of the source voltage.

The maximum containment or power cable temperature expected during a design basis event.

The rated speed of the operator motor.

Values suggested by Limitorquel include

850 RPM for 900 RPM, 3 phase 60 cycle service ac motors

1700 RPM for 1800 RPM, 3 phase 60 cycle service ac motors

3400 RPM for 3600 RPM, 3 phase 60 cycle service ac motors

700 RPM for 750 RPM, 3 phase 50 cycle service ac motors

1425 RPM for 1500 RPM, 3 phase 50 cycle service ac motors

2800 RPM for 3000 RPM, 3 phase 50 cycle service ac motors

23 June 18, 1991
L. Chapier 5

DATA ENTRY SCREENS

1425 RPM for 1500 RPM, 3 phase 25 cycle service ac motors

2100 RPM for Modutronic motors

1700 RPM for 1800 RPM, I phase 60 cycle service ac motors

1900 RPM for dc motors

Note: Dc and I phase motors are load sensitive, so the design speeds are only

approximate. Dc and I phase motors subjected to little or no running torque

(e.g., high gear ratios and corresponding long operating times) may run at

speeds 50 to 100% higher than indicated above.

Motor Rated The rated torque for the operator motor at nominal voltage conditions. Use the

Torque (ft4b1) electric motor rated specifications subject to the following caution from

Limitorque3:

As the ambient temperature increases, a dc motor's maximum output

torque decreases. Limitorque's dc operator qualification (Report B0009)

requires the operator to perform at 3400F. At this temperature, some of

the dc motors cannot produce their rated starting torque. When sizing a

nuclear qualified dc operator, the calculated motor torque must be less

than the maximum available starting torque shiown in the table below.

Rated Torque With dc Motors

Maximum available starting torque (ft-lbf)

at qualified starting temperature (3400F)

Nominal motor

starting torque ' 125 volt 250 volt

(ft-lbf) rating rating

5 5 5

10 10 10

15 15 15

25 25 25 L: :An

40 39 36

60 54 51

80 79 68 mO'

100 70 76

150 150 150

200 200 200

EG&G Idaho. Inc. 24 June 18, 1991
Chapter 5 U -- _I

DATA ENTRY SCREENS

Motor Rated

Voltage (volts)

Application

Factor

The nominal voltage for which the operator motor is rated. This is also the

voltage at which the operator motor rated speed and torque are specified.

The operator motor service factor required for a particular application.

Values suggested by Limitorque4 include

0.90- Standard

0.80- 900 RPM motors

0.80- High temperature applications using "SB"

0.80- Compound motor gear applications

0.80 - Air motors

0.75 - Modutronic motors

0.75 - Hi-Lo applications

0.70- Non rising stem where operator takes thrust

0.50 - Non rising stem where valve takes thrust

If two or more application factors are required, (e.g., 900 RPM motor with

compound gearing and a Hi-Lo) use as follows: * .w , He

0.8 (900 RPM motor) x 0.8 (Comp. Gear) x 0.75 (Hi - Lo)

0.9 (Standard) x 0.9 (Standard)

If two factors are required, divide by one standard factor.

If three factors are required, divide by two standard factors.

EG&G Idaho, Inc. 25 June 18, 1991
.b

Chapter 5

DATA ENTRY SCREENS . - - - :

.Pull Out

Efflcilency

The efficiency of the gearing in the operator during pullout5 (zero speed). Use

the appropriate value from the following table.

Unit

Size Ratio Range

1500/1800

RPM motors

3000/3600

RPM motors

SMB-000 12.50- 30.60

33.50-100.00

102.00-136.00

0.60

0.40

0.35

0.60

0.40

0.35

SMB-00 9.70- 22.04

23.00- 41.00

43.60-109.99

114.00- 183.90

0.60

0.40

0.40

0.35 1 . X,,'

SMB-0 ! ' ' 11.80- 17.50 0.65

18.50- 26.10

I26.42- 41.33

I . * - .« ^L' 43.69- 96.20

102.60-150.80

158.30-247.00

. . . _, .

5MB-I 11.60- 17.12

:18.13- 25.65

27.20- 40.15

: 2 t- ; - 42.50- 88.40

;. - ": '---92.40-171.60

191.70-234.00

0.60

0.40

0.40

0.35

0.30

0.60

0.60

0.40

0.40

0.35

0.30

0.65

0.45

0.40

0.35

0.65

0.65

0.45

0.40

0.40

0.35

0.65

0.65

0.45

0.40

0.35

0.35

SMB-2 - 11.. . .10.60- 17.77

.18.85- 25.55

; - , 26.24- 41.51

43.99- 82.50

84.84- 150.00

- - -! -- --- - ----: .-2 I. S 153.00-212.50

0.60

0.60

0.40

0.40

0.35

0.30

0.65

0.60

0.40

0.40

0.38

0.33

0.65

0.60

0.45

0.40

0.35

0.35

0.70

0.65

0.45

0.40

0.38

0.35

- SMB-3 11.05- 24.11

25.76- 37.28

43.87 - 57.40

61.50- 95.53

98.61 - 132.81

138.40- 186.40

I ,- .-_- \ A .-' EG&G Idaho. Inc. 26 June 18.1991
a

Chapter 5

DATA ENTRY SCREENS

Unit

Size

1500/1800

RPM motors

3000/3600

Ratio Range RPM motors

SMB-4

SMB-5

10.13- 32.30

33.60- 48.45

51.79-124.95

131.78-147.90

152.13 -219.30

61.42- 96.40

> 101.12-230.17

0.65

0.60

0.40

0.35

0.33

0.40

0.40

0.70

0.65

0.40

0.38

0.35

0.45

0.40

Motor Stall

Torque (ft-lb,)

The maximum torque available from the operator motor under nominal voltage

stall conditions.

Use the electric motor stall torque specification. If this information is not available, you can estimate the stall torque as 110% of the electric motor rated

torque. .e . ...

Motor Stall

Current (amps)

The maximum current the operator motor is likely to use under nominal voltage conditions. This will typically be the stall current at nominal voltage, but

may be some other value for a particular application.

For guidance, the following table represents typical stall currents at nominal

voltage conditions for operator motors in the Limitorque catalog. If motor-specific information is available, it should be used.

Rated

Torque

(ft-lbf)

1700 RPM

230V 460V

AC-3¢ AC-30

3400 RPM

*230V 460V

AC-30 AC-34P

1900 RPM

125V 250V

DC DC

2

5

7.5

10

15

25

40

60

6

11

24

32

51

76

96

_ 10

- 21/25

- 20

- 32

- 52

- 72

60 -

15

23

32

39

76

82

fi5

172

11

16

20

38

42

51

105

73

94

1 7 _, v 1 

I _ ..7' 1

EG&G Idaho. Inc. 27 June 18, 1991
Chapter 5

DATA ENTRY SCREENS - -

Rated

Torque

(ft-lbf)

1700 RPM

230V 460V

AC-30 AC-34>

3400 RPM

230V 460V

AC-30 AC-30

1900 RPM

125V 250V

DC DC

80

100

150

200

250

300

350

400

60

84

130

164

183

234

280

116

143

195

332

391

468

253

253

1050

130

146

425

530

629 - -

Motor Stall

Efficiency

Arn efficiency factor for operator motors during stall conditions.5 Use the

appropriate value from the following table.

Unit

Size

1500/1800

RPM motors

3000/3600

Ratio Range RPM motors

SMB-000

SMB-.00

SMB-0

12.50- 30.60

33.50-100.00

102.00-136.00

9.70- 22.04

23.00- 41.00

43.60-109.99

114.00-183.90

11.80- 17;50

18.50- 26.10

26.42- 41.33

43.69- 96.20

102.60-150.80

158.30-247.00

0.80

0.50

0.45

0.80

0.60

0.50

0.45

0.85

0.80

0.55

0.50

0.45

0.40

0.80

0.55

0.50

0.90

0.65

0.60

0.50

0.95

0.90

0.60

0.55

0.50

0.45 _;_

17 __ .. -7--_1

.I

. % " '_ I EG&G Idaho, Inc. 28 June 18, 1991
Chapter 5

DATA ENTRY SCREENS

Unit

Size

1500/1800

RPM motors

3000/3600

Ratio Range RPM motors

SMB-l

SMB-2

SMB-3

SMB-4

SMB-5

11.60- 17.12

18.13- 25.65

27.20- 40.15

42.50- 88.40

92.40- 171.60

191.70-234.00

,10.60- 17.77

18.85- 25.55

26.24- 41.51

43.99- 82.50

84.84- 150.00

153.00-212.50

11.05- 24.11

25.76- 37.28

43.87 - 57.40

61.50- 95.53

98.61 -132.81

138.40- 186.40

10.13- 32.30

33.60- 48.45

51.79-124.95

131.78-147.90

152.13 -219.30

61.42- 96.40

101.12 -230.17

0.85

0.85

0.55

0.50

0.45

0.40

0.85

0.85

0.55

0.50

0.45

0.40

0.90

0.90

0.55

0.50

0.50

0.45

0.90

0.90

0.55

0.50

0.45

0.60

0.60

0.95

0.90

0.60

0.55

0.50

0.45

0.95

0.90

0.60

0.55

0.50

0.45

0.95

0.95

0.60

0.55

0.50

0.50

0.95

0.95

0.60

0.55

0.50

0.65

0.65

Cable

Description

A description of the power cabling from the power source to the operator motor.

Cable Length

(ft)

The length of the power cable from the power source to the operator motor. Do

not enter the length of the return cable.

-F-;-r- 71-I I % I EG&G Idaho. Inc. 29 June 18, 1991
Chapter 5

DATA ENTRY SCREENS ';: :-

Cable Size

(cdr mils);

The cross sectional area of the power cabling, 6 expressed either as an AWG

(American Wire Gage) size or in circular Mnils. En'tering one of the following

AWG sizes will cause the corresponding value to appear in the cross sectional

area (cir mils) column. Entering the actual cross sectional area in cir mils will

cause the AWG column to go blank. The following information on the diameter of the power cabling is presented to assist in identifying the actual cable.

.; - Gage Number Dia. Area

. - - (AWG) (mils) (cir mils)

0000 460.0 212,000

000 410.0 168,000

00 365.0 133,000

0 325.0 106,000

I 289.0 83,700

2 258.0 66,400

3 229.0 52,600

4 204.0 41,700

5 . 182.0 33,100

6 162.0 26,300

7 - 144.0 20,800

8 128.0 16,500

9 114.0 13,100

10 102.0 10,400

11 91.0 8,230

12 , 81.0 6,530

-13 --- -- -- 72.0 5,180

14 64.0 4,110

i † ... - . ,, I

- - -- '- -1

- _L__ -- Cn

0

rn

z

On

,~r n EG&G Idaho. Inc. 30 Juone 18. 1991
Chapter 5

DATA ENTRY SCREENS

5.5 Mode 2,

Data Screen 2

The first data entry screen in Mode 2 is the same screen as the first screen in

Mode I (see Section 5. 1). The second data entry screen in Mode 2 is used to

record specific information relative to a low flow diagnostic test of the MOV,

such as the test stem thrust, pressure, differential pressure, packing load, and

fluid subcooling.

If the other information called for on this screen (stem diameter, etc.) has not

already been entered on Screen 2 of the Mode I data base (see Section 5.2), it

can be entered here. If it has already been entered in the Mode I data base, it

need not be entered again here.

File: Test Data (Sheet 2 of 2)

File:

Variable Use:

Stem Diameter in)

Seat ID in

Seat 00 in):

Mean Seat DOa In):

Seat Angle (deg):<

Test Data (Sheet 2 of 2)

TEST

Stem Thrust (MIf : Pressure (psig9:

Differential Pressure (p id : Packing LoaI lbf : Fluid Subcooling:t

DESIGN

> )

FI-Help FS-Valve Response PgUp/PgDn-new data sheet

Test Stem

Thrust (11)

Test Pressure

(psig)

Test Differential

Pressure (psid)

The maximum valve stem thrust measured during a test while the disk was

riding on the valve body seat, but prior to wedging of the disk.

The maximum pressure measured during a test while the disk was riding on the

valve body seat, but prior to wedging of the disk.

The maximum differential pressure measured during a test while the disk was

riding on the valve body seat, but prior to wedging of the disk.

r=4 - '-~r 1 EG&G Idaho. Inc. 31 June 18, 1991
Chapter 5

DATA ENTRY SCREENS --

Test Packing Load (lby)

Test Fluid

Subcoollng

The packing drag measured during a pretest valve closure while the valve was

nearly closed, but prior to wedging of the disk.

Fluid subcooling is the difference between the actual temperature of a liquid

and the saturation temperature of the liquid at the test pressure.

Available options are

* Less than 70'F subcooled (fluid near or at the steam temperature), or

* 70'F or greater subcooled (colder fluid).

Use the LEFT-ARROW and RIGHT-ARROW keys to set this value.

The other parameters called for on this screen (stem diameter, etc.) are the

same as those discussed in section 5.2 (Mode 1, Data Screen 2).

.. 7--  - W7

. r . N - .- .

.Arl. -

'1' ' - I '.. .C

1,61 t

IiC) )

= i .

.M M r 12;

.-V):

EG&G Idaho, Inc. 32 June 18, 1991
-

Chapter 6 ; .- :

ESTIMATED RESPONSE .SCREEN I 'r ' x

6.1 Mode 1, - --

- . .Results Screen

This screen is used to summarize the results of the design basis calculations.

You can access this screen from any Mode I'data entry screen by pressing F5.

-The upper left corner of the screen summarizes the results of the industry and

the INEL estimates of disk load, rejection loads, packing minus weight loads,

required stem thrust, required operator torque, and required motor torque. The

required stem thrust, operator torque, and motor torque are duplicated in the

lower right corner to allow easy comparison with Unit Capabilities.

'The available stem thrust, operator torque, and motor torque at stall, nominal,

and degraded voltage conditions, calculated considering the effect of voltage

losses from the power source to the operator motor, are displayed under the

heading "Unit capabilities." If torque switch calibration data was entered on

Data Screen 3, then estimated torque switch settings are also displayed.

Node I: Capability Assessment

Vle/Operator/Motor Requirements I File:

INEL Estimate Industry Estimate

.4-.1 -- ,

:, - I,.

a

I

I

I

Disk Load (lbf) p-0000.

Rejection Loads (lbf) Packing - Veight Loads (lbf)

Req'd Stem Thrust (lbf)

Req d Operator Torque (ft-lbf)

Req d Motor Torque (ft-lbf) ; .1 -6I

Unit Capabilities Unit Requirements I

Available' itlAvalable at Avallable at INEL Industry

Max. VoltagelNao. Voltagejlin. Voltage Estimate Estimate

Press any key to continue

Stem Thrust

Operator Torque Motor Torque

Voltage Drop

Torque Switch _

- -l

r e st--* -7-~~ .I

4' 4- \ . . EG&G Idaho, Inc. 33 June 18,1991
a

Chapter 6

ESTIMATED RESPONSE SCREEN

6.2 Mode 2,

Results Screen

This screen is used to summarize the results of the test validation and extrapolation calculations. You can access this screen from either Mode 2 data entry

screen by pressing F5. The upper part of the screen summarizes an evaluation

of the test results and an assessment as to whether the test valve was typical of

the valves tested by the INEL. The lower part of the screen summarizes the

results of design basis calculations using the INEL equation, assuming the test

valve will be typical of the valves tested by the INEL.

INEL Estimated

Valve Response

- Mode 2: Validate & Extrapolate

File:

Test Condition Estimates:

Stem Thrust (lbs) Subcooling:

Packing - Weight Loads (lbs)

Rejection Loads (lbs)

Total Vertical Disk Loads (lbs)

Total Horizontal Disk Loads (ibs)

Normalized Normal Disk Force (lbs) Normalized Sliding Disk Force (lbs)

Sliding Disk Force Within Limits of INEL Data

( ) to (

Design Basis Estimates:

Disk Load (lbs) Subcooling:

Rejection Loads (lbs)

Packing - Weight Loads (lbs)

Req d Stem Thrust (lbf) I

- Press any key to continue

, . 7P -- 1

I _ x, - I

EG&G Idaho. Inc. 34 June 18 1991
h

Chapter 7 I

MOV EQUATIONS

The following equations are used in IVA and are presented here as they appear

on the various help screens.

Required Capability

(Equation I of 17)

RS.Thr - estimated using either the:

* Industr-y stem thrust equation

* INEL stem thrust equation.

RO.Tor = RS.Thr * SF

RM.Tor, go * ~ RO.tor A RM.or= PO AJ * OAR

where, '

RS.Thr =

RO.Tor = "

RM.Tor =-

and,

SF =

I .o 11 PO r_~-

AF = -

OAR =

Required Stem Thrust (lbf)

Required Operator Torquel (ft-lbf)

Required Motor TorqueI (ft-lbf)

Stem Factor

Pull Out Efficiency

Application Factor

Overall Operator Ratio

- - -- - '- .-3

' \. I EG&G Idaho, Inc. 35 June 18, 1991
Chapter 7

MOV EQUATIONS

Available Capability at Rated Voltage

(Equation 2 of 17)

[ - power

Nom M.Tor = Motor Rated Torque * RatedV

Nom O.Tor = Nom M.Tor * PO * AF * OAR

' Nom O.Tor Nom S.Thr = SFSF

where,

Nom M.Tor = Nominal Available Motor Torquel (ft-lbf)

Nom O.Tor = Nominal Available Operator Torquel (ft-lbf)

Nom S.Thr = Nominal Available Stem Thrustl (lbf)

and,

SF = Stem Factor

PO = Pullout Efficiency

AF = Application Factor

OAR = Overall Operator Ratio

NomV = Nominal Supply Voltage (volts)

VDrop = Cable Voltage Loss (volts)

RatedV = Motor Rated Voltage (volts)

Power = 1 for DC, 2 for AC

.a_ - aEG&Gldahoo.Inc. '. _ 36 June 18,.1991
Chapter 7

MOV EQUATIONS I.. -

.

- 7 Available Capability at Minimum Voltage

(Equation 3 of 17)

[ ]~~~Power

Min M.Tor = Motor Rated Torque MinV - VDrop L RatedV J

Min O.Tor = Min M.Tor * PO * AF * OAR

Min O.Tor Min S.T1r =,SF

. . . . . . t.

where,

Min M.Tor

Min O.Tor

Min S.Thr

and,

SF = .

PO =

AF -

OAR =

MinV,

VDrop.-

RatedV

Power =

= Minimum Available Motor TorqueI (ft-lbf)

= Minimum Available Operator Torquel (ft-lbf)

= Minimum Available Stem Thrustl (lbf)

Stem Factor

Pullout Efficiency

Application Factor

Overall Operator Ratio

Minimum Supply Voltage (volts)

Cable Voltage Loss (volts)

Motor Rated Voltage (volts)

I for DC,2 for AC

. - -i r, EG&G Idaho. Inc. 37 June 18.1991
Chapter 7

MOV EQUATIONS

Available Capability at Maximum Voltage

(Equation 4 of 17)

r i~~~Power

Max M.Tor = Motor Stall Torque * MaxV - VDrop L RatedV j

Max O.Tor = Max M.Tor * SE * OAR

Max S.Thr Max O.Tor SF

where,

Max M.Tor

Max O.Tor

Max S.Thr

= Maximum Available Motor Stall Torquel (ft-lbf)

= Maximum Available Operator Torque7 (ft-lbf)

= Maximum Available Stem Thrustl (lbf)

and,

SF = Stem Factor

SE = Stall Efficiency

OAR = Overall Operator Ratio

MaxV = Maximum Supply Voltage (volts)

VDrop = Cable Voltage Loss (volts)

RatedV = Motor Rated Voltage (volts)

Power = I for DC. 2 for AC

~~- \.~. \

I

EG&G Idaho. Inc. 38 June 18.1991
Chapter 7

MOV EQUATIONS I;.

- - Cable Voltage Loss Calculation

(Equation 5 of 17)

VDrop' = 2: C2 * Ohms * Length * Amps V~~rop = ~~Mils

where,

VDrop =

and,

Cable Voltage Loss6 (volts)

Ohms = Cable Resistance (ohms-circular mils/ft)

Length = . Cable Length (ft)

Mils = Cable Size (circular mils)

Amps = Voltage Adjusted Motor Stall Current (amps)

C2 = 2 for DC and AC-14, ¶3 for AC-3¢

",-771 n EG&G Idaho. Inc. 39 Junte 18, 1991
S

Chapter 7

MOV EQUATIONS

Voltage Adjusted Motor Stall Current

(Equation 6 of 17)

MinS.Volt Min.Amps = R.Amps R.MVolt

NomS.Volt Nom.Amps = R.Amps R.Volt

M R.Volt Max.Amps = R.Amps Max.Volt

where,

Min.Amps

Nom.Amps

Max.Amps

= Motor Current at Minimum Voltage (amps)

= Motor Current at Nominal Voltage (amps)

= Motor Current at Maximum Voltage (amps)

and,

R.Amps

R.Volt

MinS.Volt

NomS.Volt

MaxS.Volt

Stall Current at Rated Voltage (amps)

Motor Rated Voltage (volts)

Minimum Power Source Voltage (volts)

Nominal Power Source Voltage (volts)

Maximum Power Source Voltage (volts)

T=;r- -- jr-r- 11

11 -1 %4 EG&G Idaho, Inc. 40 June 18, 1991
. . . v . . . - . .v.

Chapter 7

MOV EQUATIONS -; . ;

Cable Resistance (Copper)

(Equation 7 of 17)

Ohms' = 10.371 * [I + Temp - 201 [ 234.5 .-~ TempJ

where,

Ohms = Cable Resistance' (ohms-circular mils/ft)

- and,

.. , .;; X Temp .- = I Cable Temperature (

0C-Note that this value is input on

the data entry screen as 'F but used in this equation

as C)

--J+--I -

~- %. , EG&G Idaho. Inc. 41 June 18. 1991
Chapter 7

MOV EQUATIONS

Industry Gate Valve Stem Thrust Equation

(Equation 8 of 17)

RS.Thr = F.disk + F.rejection + F.packing

(+ for closure)

where,

RS.Thr = Required Stem Thrust1 (Ibf)

and,

F.disk

F.rejection

F.Packing

DP

Orifice Area

Stem Area

= Disk Factor * Orifice Area * DP (Ibf)

= Upstream Pressure * Stem Area (lbf)

= Packing Drag (lbf)

= The maximum pressure drop across the valve (psid)

= 1/4 it (Orifice Dia)2 (inch2 )

= 1/4 it (Stem Dia)2 (inch2 )

i=-~ `- r

EG&G I Idaho, Inc. 42 June 18, 1991
Chapter 7

MOV EQUATIONS -. I t

INEL Gate Valve Stem Thrust Equation

(Equation 9 of 17)

RS.Thr = Fdisk + F.rejection + F.packing

where,

RS.Thr = Required Stem Thrust8 (Ibf)

and,

F disk =[f * cos a + sin a] F.H + [C * Seat Area] Ob

cos a - f * sin a

F.rejection = Fstemrej-F.top + F.bottom (OM)

F.packing = packing drag-disk and stem weight (Ibf)

up , Upstream Pressure * Seat Area (Ibf)

F.down = Downstream Pressure * Seat Area (Ibf)

F.dtow = DUpstream Pressure * Seat Area * tan a ((bf)

F.bottom = Downstream Pressure * Seat Area * tan a (Ibf)

F.stem_rej = Upstream Pressure * Stem Area (Ibf)

F.H = F.up-F.down

Seat Dia = 1/2 (Seat ID + Seat OD) (inch)

Seat Area = 1/4 nt (Seat Dia)2 (inch2 )

Stem Area = 1/4 n (Stem Dia)2 (inch2)

f = 0.400 for less than 70°F subcooled water

0.500 for 70°F or greater subcooled water

C = 0 lbfrin2 for a best estimate calculation

50 1bffin2 .for a conservative calculation

.. I 4n \ _ \__ \Sr EG&G Idaho, Inc. 43 June 18.1991
Chapter 7

MOV EQUATIONS

Stem Factor Calculation

(Equation 10 of 17)

SF = d * [0.96815 * tan fi + u] 24 * [0.96815 - y * tan Pi]

where,

SF = Stem factor 9

and,

d

Lead

= Stem to stem nut coefficient of friction

= Stem diameter- 1/2 Pitch (inch)

= Stem Lead (inch/stem revolution)

tang = Lead

-- --Jr-7 . . I

- k-- 1 EG&G Idaho, Inc. 44 June 18, 1991
Chapter 7 -. - I - -

MOV EQUATIONS -. -

.- Stem To Stem Nut Coefficient of Friction Calculation

(Equation 11 of 17)

- 0.96815 [24 * SF - d * tan PI

d + 24 * SF * tan fi

where,

- A = Stem to stem nut coefficient of friction9

.0

. a

-a

. z

and,

SF-. = 'Stem factor

d = Stem diameter- Pitch (inch)

Lead .= Stem Lead (inch/stem revolution) he . _. .

Lead

tan f = Lead

\... _ 1 _

EG&G Idaho, Inc. 45 June 18, 1991
Chapter 7

MOV EQUATIONS

Overall Operator Ratio Calculation

(Equation 12 of 17)

OAR = Motor Speed * Lead

Stem Speed

where,

OAR = Overall Operator RatioI

and,

Motor Speed

Lead

Stem Speed

Rated Motor Speed (RPM)

Stem Lead (inch/stem revolution)

MOV stem speed (inch/min)

1%,

11_r -- '. 1-1

.1 % - \ - EG&G Idaho, Inc. 46 June 18, 1991
Chapter 7

MOV EQUATIONS

Motor Rated Speed Calculation

(Equation 13 of 17)

OAR * Stem Speed Motor Speed = Lead

where,

Motor Speed = Motor Rated SpeedI (RPM) -. I.

7.'

C

ICI

and,

i I'.I

OAR =

Lead --

Stem Speed =

Overall Operator Ratio

Stem Lead (inch/stem revolution)

MOV stem speed (inch/min)

N%'

I

:.-- '

---,I Irl

EG&G Idaho, Inc. 47 June 18, 1991
-

Chapter 7

MOV EQUATIONS

Valve Stroke Time

(Equation 14 of 17)

Time = Length * 60

Stem Speed

where,

Time = Valve Stroke Time7 (sec)

and,

Length

Stem Speed

= Valve Stroke Length (inch)

= MOV Stem Speed (inch/min)

, n ' - 3⁄4 -, \Q EG&G Idaho. Inc. 48 June 18, 1991 I
b

Chapter 7 :

MOV EQUATIONS

Sliding Force Limits

(Equation 15 of 17)

,Is(f*Fn-C)<Fs <(f*Fn+C)?

where,

Fs - Normalized Sliding Force8 (Ibf)

and,

Fn - Normalized Normal Force8 (lbf)

f = 0.400 for less than 70TF subcooled water

0.500 for 701F or greater subcooled water

C - 0 lbf/in2

.Z , -- .. r .I EG&G Idaho. Inc. 49 June 18, 1991
Chapter 7

MOV EQUATIONS

Normalized Forces

(Equation 16 of 17)

Fn = H * cos a + V * sin a

Seat Area

Fs = H * sin a - V * cos a

Seat Area

where,

Fn

Fs

= Normalized Normal Force8 (Ibf)

= Normalized Sliding Force 8 (Ibf)

and,

H

V

a

Seat Area

= Total Horizontal Disk Forces (Ibf)

= Total Vertical Disk Forces (Ibf)

= Valve Seat Angle (degrees)

= 1/4 ir (Seat Dia)2 (inch2)

, -GJ

, \_ _ I EG&G Idaho, Inc. 50 June 18, 1991 I1
Chapter 7

MOV EQUATIONS

Total Disk Loads

(Equation 17 of 17)

H = F.up-F.down

V = F.stem-F.pack-F.stemjrej + F.top-F.bottom

where,

H = Total Horizontal Disk Load8 (Ibf)

V = Total Vertical Disk Load8 (Ibf)

and,

F.up = Upstream Pressure * Seat Area (Ibf)

F.down = Downstream Pressure * Seat Area (lbf)

F.stem = Stem Thrust (Ibf)

F.pack = Packing Drag (lbf)

F.stem-rej = Upstream Pressure * Stem Area (Ibf)

F.top = Upstream Pressure * Seat Area * tan a (Ibf)

F.bottom = Downstream Pressure * Seat Area * tan a (IbO)

Seat Dia = 112 (Seat ID + Seat OD) (inch)

Seat Area = 1/4 n (Seat Dia)2 (inch2)

Stem Area = 1/4 n (Stem Dia)2 (inch2)

EG&Gldaho.Inc. 51 June 18.1991
I

Chapter 8

LIMITORQUE OPERATOR RATINGS10

Max. Threaded

Operator Rated Stem Diameter

Torque Thrust 2 piece nut I piece nut

Model-Size Ratio Range (ft-lbf) (lbf) (inch) (inch)

SMB-000 12.5 - 30.6

33.5- 100.0

102.0- 136.0

90

90

90

250

250

190

8,000 1 3/8 1 12

SMB-00 9.7- 22.0 2

, 23.0-109.0

114.0-183.9

14,000 1 3/4

SMB-0

SMB-1

SMB-2

11.8- 26.1

26.4- 96.2

102.6-150.8

158.3 -247.0

11.6- 25.7

27.2- 88.4

92.4-171.6

191.7-234.0

10.6- 25.6

26.2- 82.5

84.8- 150.0

153.0-212.5

500

500

500

340

850

850

780

625

1,800

1,800

1,250

950

24,000 2 3/8

45,000 2 7/8

2 3/4

,0

.-m P :'U

31/4 .8

::D-

.AC

70,000 31/2 3 7/8 at

SMB-3 11.0- 24.1

25.8- 34.6

35.9- 95.5

98.6-132.8

138.4-186.4

10.1- 32.3

33.6- 48.4

51.8-125.0

131.9-147.9

152.1-219.3

3,700

3,700

4,200

3,300

2,800

7,500

7,500

7,500

5,100

3,900

140,000

250,000

5 5 3/4

SMB-4 5 6 3/4

I

SMB-5 59.3 - 96.4

103.9-229.9

20,000

20,000

500,000 6 1/4 8

TzEG&G Idaho, Inc. 52 June 18. 1991
. . --- - .. A - - -- -... -- - - - - --

Chapter 9

REFERENCES

1. Limitorque Selection Procedure SEL-3, dated May 21, 1979.

2. Limitorque Selection Procedure SEL-1, dated May 21, 1979.

3. Limitorque Selection Procedure SEL-5, dated July 1, 1977.

4. Limitorque Selection Procedure SEL-4, dated July 1, 1977.

5. Limitorque Selection Procedure SEL-7, dated April 8, 1974.

6. Marks Standard Handbook for Mechanical Engineers, Eighth Edition,

1978;

7. Limitorque Outline of Sizing Procedure

8. Steele, R., Jr., J. C. Watkins, K. G. DeWall, and M. J. Russell, 1991,

Motor-Operated Valve Research Update (Draft), NUREG/CR-5720,

EGG-2643.

9. Limitorque 900-00003 and 900-00004, dated March 1988.

10. Limitorque Selection Procedure SEL-9, dated June 2, 1975.

P)

mm

z

mIn

,, ,> xh EG&Gldaho. Inc. 53 June 18. 1991°