SRVSpeQ Lite Software - Valves | Valves€¦ · Consolidated* Pressure Relief Valve Sizing and...

GE Oil & Gas

SRVSpeQ Lite Software Consolidated* Pressure Relief Valve Sizing and Configurator User Manual

Version v.3.00.0.0

Version 1.0

Last Update March 10th , 2015

Created by Alfredo Castravelli

Last Modified by Alfredo Castravelli

Consolidated* Pressure Relief Valve Sizing and Configurator User Manual | 2

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1. Introduction ...................................................................................................................... 5

2. System Requirements, Download and Installation ................................................... 5

3. Getting Started with SRVSpeQ Functions .................................................................... 6

3.1 Menu Bar ........................................................................................................................................................................ 6

3.2 Project Functions: create, edit and manage projects ................................................................................ 7

3.3 Add, edit and manage line items ......................................................................................................................11

3.4 Library ...........................................................................................................................................................................13

3.5 Dynamic Searching Feature ................................................................................................................................17

3.6 Set SRVSpeQ under your preferences ............................................................................................................18

3.7 Reports to generate technical documentation ..........................................................................................20

3.8 Reports Examples ....................................................................................................................................................21

4. Sizing a Safety Relief Valve ........................................................................................... 30

4.1 Item Data .....................................................................................................................................................................30

4.2 Item Defaults ..............................................................................................................................................................31

4.3 Sizing & Selection .....................................................................................................................................................33

4.3.1 General Information .................................................................................................................................................... 344.3.2 Valve Data ........................................................................................................................................................................ 364.3.3 Service Conditions ........................................................................................................................................................ 394.3.4 Sizing Basis ....................................................................................................................................................................... 424.3.5 Fluid Data .......................................................................................................................................................................... 464.3.6 DIERS Data ....................................................................................................................................................................... 474.3.7 Size ....................................................................................................................................................................................... 49

4.4 Select Accessories and Option ...........................................................................................................................49

4.4.1 Selection Summary ...................................................................................................................................................... 504.4.2 Valve Configuration and Variables ....................................................................................................................... 524.4.3 Accessories and Options ........................................................................................................................................... 534.4.4 Errors/Warnings ............................................................................................................................................................ 53

4.5 Configure Parts/Material.......................................................................................................................................54

4.6 Drawings ......................................................................................................................................................................55

5. Sizing Error Messages ................................................................................................... 56


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1. Introduction

SRVSpeQ software is designed to size, select and configure Consolidated ® Safety and Safety Relief valves from GE. This manual provides for an overview of functionalities and describes the process to be followed to size a safety relief valve with the SRVSpeQ software.

This manual is not intended to be a guide or training for the use of a safety relief valve. That requires the product, codes and standard knowledge as well as understanding of physics and process. All the processes described here assume that you are familiar with codes, standards, products and terminology.

2. System Requirements, Download and Installation

SRVSpeQ Lite software is compatible with Windows OS, with below-minimum system requirements:

Hardware Requirements Pentium IV 1GHz Processor 1 Gb RAM minimum 500-MB free disk space required on the system drive.

Software Requirements Windows XP or Windows 7. SRVSpeQ Lite software is available on:

Channel Connect – www.gefptconnect.com – Portal available to GE's Channels and GE's internals under section Online Tools/ SRVSpeQ

M&C Download Center – http://www.ge-mcs.com/en/download.html – Public portal

Download the installation from the link and save it to your PC. Do not click the Run button from the download dialog. Click only the Save As button. Once downloaded, use the Right Click, Run as Administrator option on all installations and updates.

Once the program is installed, a shortcut to the desktop on the taskbar is created; both launch the program.


3. Getting Started with SRVSpeQ Functions

Upon starting the application, the system appears with three major sections, showing a dashboard with saved projects.

3.1 Menu Bar The Menu Bar provides various options for executing different features or functionality

The following menus are available on the application menu bar:

1. Project

2. Line Item

3. Library

4. Preferences

5. Reports

6. Help

Menu Bar

Project List

Item List


3.2 Project Functions: create, edit and manage projects

Project dropdown functions are shown here:

Add Create a new project. Once the functionality is recalled, a form with project data appears for user entry. Information flagged with a red asterisk * is mandatory.

Save Save project. (The same function appears on right bottom after clicking Add.)


List Lists existing projects (the screen appears at Startup). Note that the project grid has a check box on the left side for selecting a project.

By clicking one of the projects listed, the SRVSpeQ program shows the list of the items pertaining to project selected.

This screen also allows you to manage project information data by editing or deleting the project using two buttons located on the right side.

Copy This function copies a project and is enabled only after project selection. (The checkbox is on the left side.)

Delete This function deletes a project and is enabled only after project selection. (The checkbox is on the left side.)

Quick Size Template This function creates a template that can be imported into new or existing projects.

The function of template creation follows the same steps of valve sizing and selection and will be described in Chapter 4.

The only addition to sizing and selection is that you must define the name of the template for further recall.

Selection checkbox

Edit / Delete project button


Filters This function filters existing project database findings specified by given parameters. When recalled, a menu appears with three parameters to be configured:

The three variables to be configured are:

Columns: Project Number, Project Name, Client, Date

Operator:

Contains, Does Not Contain, Starts With, Ends With

Equals, Does Not Equal, On or Before, On or After (Date Only column)

Value: Free text to be searched

After the above have been defined, click the Add button to apply the filter.

Example: Look for all projects quoted after 20th January.


Once Apply is clicked, a list of projects appears.

Exit This function exits from the program.

For quick access, major functions of the Project Menu are reported on the second row of the Menu Bar. Those refer to the same functions in the Project dropdown menu.


3.3 Add, edit and manage line items

Line item functions appear only after the selection of a project. A project must be selected before this menu can be enabled.

To open a project, double click on the corresponding row.

Once a project is recalled, the first screen to appear is the Project Information tab, which can be edited.

Line Item dropdown functions are shown here:

Double Click


Add (Pressure Relief Valve) Add a new valve. Once the functionality is recalled, the system recalls the Sizing & Selection tab. The sizing and selection will be separately addressed in this manual in section 4.3.

Save This function saves the current line item and is enabled only when a line item is selected.

Copy This function copies and pastes as the last item the current line item and is enabled only when a line item is selected.

Delete This function deletes the current line item and is enabled only when a line item is selected.

Freeze/Unfreeze These functions are not enabled for the Lite version.

Import Template This function imports a template previously created with the Quick Size function.

Once recalled, a pop-up menu appears recalling a list of existing templates. The template to be imported must be selected through the left check box, then imported through the Import button.

This message will show the result of the import process.


Cancel This option is used to cancel the selected line item. A canceled item is visible in the project but does not appear in print. This option is used for items on hold from the customer. Note that the message below will appear:

3.4 Library Library allows to save templates as complete valves (see paragraph 3.2, Quick Size Template) or as Notes to be associated with single items that can be stored and recalled.

Notes Library A Note is a free-text description shown on a data sheet that can be saved as a template to be used for different items or projects. Once the Notes Library is recalled, the following screen appears:


Under the field Enter New Note, you may fill the free text you want as the template. Once texted and saved, the system shows a line template with a description.

Each note can be viewed by recalling the View Note button on the right side. The Delete button allows you to delete a previously saved item note.

View Note Delete Note


To edit a note, recall it from View Note.

Then edit the description and Save. The sizing note will appear edited.

Template A template is a valve that is already configured and can be added to a specific project.

A template can be created to the Quick Size function under the Project menu and also from the Template menu that appears as follows:

Each saved template can be copied to the current project (quote), edited or deleted through three buttons on the right side of each template line.

Delete Template

Copy Template to

Quote Edit Template


Other available functions are:

Find Template

This function allows you to filter the template through these parameters:

Series

Product

Sizing Method

From Date (Calendar appears)

To Date (Calendar appears)

Once all data is entered, the Find button allows you to filter out the template under the above conditions.

Add (Template)

This function recalls the same Quick Size function under the Project menu.


3.5 Dynamic Searching Feature

This searching feature allows you to search data within the database and changes the type of search if you’re at the Project or Item level.

If on the Project level (e.g., you are not yet working in a specific project, but are visualizing the project list), searching filters are:

Project Number

Project Name

Date

Client

If you are within a specific project, searching features are:

Tag No.

Description

Results allow editing of additional data:


3.6 Set SRVSpeQ under your preferences SRVSpeQ can be set to define preferences while working.

There are two kinds of preferences:

User These are the general user preferences and apply on all projects.

Project Project preferences are defaults that override the user preferences and will applied for the specific/current project only.

User preferences are defaulted to project preferences whenever a new project is created.

It is strongly recommended that you set user preferences at least for the most common UOM; this will allow for quick data entry.

Tip: Use tab on keyboard. The SRVSpeQ software will navigate from the first dropdown menu on the top left to the bottom. Use the arrow keys to change the selection on the dropdown menu.


Here is an example of a minimum set of user preferences that can be defined.

My Settings This panel allows you to save the user information that will be displayed on documentation generated by the SRVSpeQ software. It is strongly recommended that you populate this.


3.7 Reports to generate technical documentation This option generates the standard documentation associated with the project or quote.

The following screen is displayed on the Call of Report option.

All items within the project are listed on the left view, and available reports are listed on the right view. Available reports are grouped and listed by category.

The list displays the item’s logical line number in the project file and the description of the item as configured. You can select one or more line items from the list.

Project No. This dropdown menu allows you to select a specific project and appears pre-populated with the current project if recalled from the project and not from the Main Menu.

Line No. To select multiple line items listed sequentially, select the starting line item and, holding the Shift key, click on the line item to indicate the end of selection. To select multiple line items not in a sequence, click on the first line item and, holding the Ctrl key, click on the other line items that are required.

Reports Select All will select all reports, while checking individual reports will select only those chosen.

Generate Report / Options The Size and Language option will set the unit of measure to be shown on documentation with respect to valve size.


Print Options and exporting in different formats Once Generate Report is clicked, the SRVSpeQ program shows a preview of documentation, and a Menu Bar appears on top.

The Export button allows you to save in various formats (Excel, Word, PDF). However, a more immediate button, Export to PDF Book, allows you to generate a PDF document in a more direct way.

3.8 Reports Examples

Technical Summary This list includes all valves with TAG, Model, Size, Orifice Area, Pressure, Connection and Weight.

Print

Export

Print Layout


Valve Data Sheet The Valve Data sheet, also known as the Sizing & Selection Report, contains all technical information of sized valves with calculation input and output.


Drawing


Calculation Sheet This contains the equation used for sizing as well as the numerical results from that equation.


Vessel Calculation – Sizing and Selection Report These reports are generated when vessel calculations are invoked (see paragraph 4.3.4).


Vessel Calculation - Calculation Sheet These reports are generated when vessel calculations are invoked (see paragraph 4.3.4).


DIERS Method – Sizing and Selection Report These reports are generated when the DIERS Method is selected (see paragraph 4.3.1).


DIERS Method – Calculation Sheet These reports are generated when the DIERS Method is selected (see paragraph 4.3.1).


4. Sizing a Safety Relief Valve

Before sizing a safety relief valve, you should have created a project (see section 3.2) and set up the preferences (see section 3.5).

Once a project is added and created, a line item must be added through the Line Item/Add/Safety Relief Valve button or through the Visual button on the Menu Bar.

When a line item is added, the SRVSpeQ program shows a screen with four tabs:

Item Data

Item Defaults

Sizing & Selection

Drawings

Each tab has a green or red point.

The green point indicates that user intervention is not required; the red point indicates that you must complete actions or that you have pending actions to take before validating sizing and selections.

The SRVSpeQ program shows as default the Sizing & Selection screen.

4.1 Item Data The Item Data tab contains information that is pre-populated from the Project or Sizing & Selection tab, although it can be overridden.

The Notes box contains a free text notepad that allows you to create free text notes that will be included in the Sizing & Selection Report.

The Item No., Tag No., and Qty. can be entered directly by the Sizing & Selection screen, and the SRVSpeQ software will synchronize that data with the Sizing and Selection screen.


Notes has a similar box in the Sizing & Selection screen. However, a different text can be added and, if both Notes are populated, the SRVSpeQ program will report both Notes on the Sizing & Selection Report.

4.2 Item Defaults Item Defaults shows the default from project preferences.


Tip: Use tab on keyboard. The SRVSpeQ program will navigate from the first dropdown menu on the top left to the bottom. Use the arrow keys to change the selection on the dropdown menu.

Capacity/Area Safety Factor You can oversize and shift the capacity calculated. If the initial selected capacity/area is within the percentage of the required capacity/area, the next larger valve orifice will be selected.


4.3 Sizing & Selection

Sizing & Selection requires you to fill the following sub sections in this order:

General Information

Valve Data

Service Conditions

Fluid Data

Next, proceed with BOM and additional configurations.


4.3.1 General Information

Tip: Use the tab on the keyboard. The SRVSpeQ program will navigate from the first dropdown menu on the top left to the bottom. Use the arrow keys to change the selection on the dropdown menu.

Tag No./Item No. /Spec. Sheet No. These are a free text field. The Tag No. and Spec. Sheet No. indicate the Tag number provided by the customer. The Item No. may be required by the customer or you can define it. It is recommended that you use a numeric to have the best view into the Report List.

Qty. This indicates the quantity of valves, and is a numeric field only.

P & ID No. This is a free text field and indicates the P & ID number provided by the customer.

Location This is a free text field and indicates the location provided by the customer.


Sizing Method Possible options are:

ASME I

ASME VIII

DIERS API 520

The system will filter out the available valve selection and, for DIERS, the Fluid Data to match the Sizing Method with the valve series:

Sizing Method ASME I

(Gas /Vapour) ASME VIII

(Liquid / Gas / Vapour) DIERS API 520 (Two Phase )

Product Line

1900/P 1900 1900

1700 19000 19000

2700 3900 3900

1811 2900 2900

1511 4900 4900

1541 1982

1543 1700

2900-40 2700

3500 1811

1511

1541

1543

IBR Verification This check box enables verification according to Indian Boiler Regulation.


4.3.2 Valve Data

This section varies according to the Sizing Method previously selected, as an option may not be available. The option not available appears to be grey shaded.

Option available:

Option not available:

Valve Series This defines the available valve series according to the Sizing Method.


Valve Design This defines the available design option based on the valve series:

Product Line Design Options Product Line

1900/P Conventional 1900/P

1900 Conventional 1900



All Others Options not available

Note: After you have selected a series and design, if you change the valve series, the SRVSpeQ software will default the design option to Conventional.

P/T Rating This defines the Rating Standard on which the rating check is performed. The options are ASME or API when available:

Product Line P / T Rating Options

1900 / 3900 ASME API

All Others ASME

Orifice Calculation This defines Orifice Calculation options, which are ASME or API when available:

Product Line Orifice Calculations Options

1900 / 3900 ASME API

All Others ASME

Rupture Disc CCF (Only ASME VIII / DIERS) This defines the Combination Capacity Factor (CCF) of Rupture Disc, and is provided by the customer. Typical values are:

1 (system without Rupture Disk)

0,9 (system with Rupture Disk, typical from ASME)

Close to 0.9 (system with Rupture Disk, when required by the customer)

UM Design (1900 Only) This allows you to select the Universal Media Design trim.


ASME B31.1 P/T Limit (1700/2700 Only) This check box performs a rating check according to ASME B31.3 only.

Size, Type, Rating and Facing Configurator The information here is filled with data provided by the customer. The SRVSpeQ software will determine if that data is consistent with the calculation results and provide feedback in case of discrepancy.

Facing legend:

Rf: Raised Face

Rtj: Ring Joint

Lm: Large Male

Sm: Small Male

Lf: Large Female

Sf: Small Female

Lt: Large Tongue

St: Small Tongue

Lg: Large Groove

Sg : Small Groove

Lj: Lens Joint

Bw: Butt Weld

Rs: Raised Face / Serrated

Ff: Flat Face

Material This dropdown menu selects the Material Construction Variation as defined in the Consolidated valve catalog from GE.

Once this option is defined, all valve parts will be defined accordingly.

The ASME VIII valve series will show Material Class as code, where CC is the Carbon Steel Standard.

The ASME I valve series will show Material Class as code or body material, depending on the product line.

Product Line Material Option

1700 / 3500 Trough Body Material

All other products Defined by class code


Pilot Material (pilot valves only) This dropdown menu selects the Pilot Material Construction Variation as defined in the Consolidated catalog from GE. Once this option is defined, all pilot valve parts will be defined accordingly.

Part of Set/Low Set of Group (ASME I only) Drum application requires multiple valve installations. By clicking the Part of Set option, the SRVSpeQ software performs the calculation of multiple valves on the boiler.

Low Set of Group is the lowest set pressure that the system considers.

Note: Low Set of Group UOM appears after it is selected in the Service Conditions pressure unit.

4.3.3 Service Conditions

This section varies according to valve data previously selected; some options may not be available.

Pressure This defines the pressure values and relevant UOM to size a valve. Based on the definition below, the SRVSpeQ software makes a consistency check, giving feedback in case some entered data does not match the expected value.


This is an example of pressure consistency feedback.

Note: Unit of Measure is dynamic and converts values in to different unit. Example, if you put 1 bar than change UOM to psig, system will turn it automatically to 14.5 psig.

Operating Pressure: Gauge pressure to which the valve normally is subjected in service

Set Pressure: Gauge pressure for which the safety valve has been adjusted to open under service

conditions

MAWP: Maximum Allowable Working Pressure at a designed temperature

P1 using MAWP: Flowing pressure calculated using MAWP pressure instead of Set pressure

Built Up: Pressure developed at outlet of valve as a result of flow

Total Back Pressure: Calculated by SRVSpeQ as result of all the above back pressures

Barometric: Pressure exerted by the atmosphere at a given point. If not defined by the customer, it needs

to be set at 1.0133 Bar(a). Note that this value is only expressed in absolute UOMs

Back Pressure (only ASME VIII and DIERS Sizing Method): Superimposed Min: Minimum value of back pressure, e.g., minimum pressure in the discharge before valve

opens

Superimposed Max: Maximum value of back pressure, e.g., maximum pressure in the discharge before

valve opens

Note: To set Constant Superimposed, define minimum pressure value. To set Variable Superimposed, define minimum/maximum pressure value and/or maximum pressure value.


Temperature

This defines the temperature values and relevant UOM-to-size valve.

Operating Temperature: The temperature the valve is normally subjected to while in service

Relieving Temperature: The temperature of fluid at discharge

Design Temperature: Maximum allowable temperature

Calculation of Saturated Steam Temps The utility calculates the Operating, Relieving and Design Temperature of saturated steam based on the Operating, Set and MAWP Pressures.

Note: This tool is independent from Fluid Data defined; check that Steam is selected.


4.3.4 Sizing Basis

This defines the basis of calculation and can be:

Capacity

Area (Area value and UOM is required)

Note that the SRVSpeQ software can oversize the value required through a setting in the Item Defaults tab (see paragraph 4.2).

4.3.4.1 EN ISO 4126 (ASME VIII only)

This check enables the calculation according to EN ISO 4126. The maximum vessel accumulation is to be defined by the applicable local regulation or directive; however, if there is a need for multiple pressure relief devices, one device must be set at no higher than the maximum allowable pressure set forth by local regulations.

Any additional devices can be set up to a maximum of 5% above this maximum allowable pressure.

In case of fire, these set pressures may be higher than 105% of the maximum allowable set pressure.


4.3.4.2 Fire Sizing (ASME VIII / DIERS only)

This check box enables the calculation of the accumulation according to ASME VIII rule, reporting on Sizing & Selection.

Report the correspondent value.

Fire sizing checkbox not selected Single Valve Accumulation is set to 10% over the maximum allowable working pressure (MAWP).

Multiple Valves When multiple PRVs are required, the accumulation is set to 16 % above the MAWP.

Fire sizing checkbox selected Single Valve Accumulation is set to 21 percent over the maximum allowable working pressure (MAWP).

Multiple Valves When multiple PRVs are required, the primary valve can again be set no higher than the MAWP. Any supplemental valve can be set to open at a pressure 10 percent above the MAWP.

The overall vessel accumulation that is allowed by the Code is now 21 percent.

4.3.4.3 Vessel Data (ASME VIII and Fire Sizing only)

This performs the calculation required by API in case an open fire occurs around equipment or vessels, and heat will be absorbed by anything in contact with flames, such as vessels.

The sizing appears only if Fire Sizing is checked.

The form depends on Fluid State in Fluid Data, so Environmental factor, Latent Heat or % Wetted Surface Area are enabled only if required by the fluid status (gas/liquid) in Normal and Fire State condition.

Those conditions must be set on the Fluid Data form.


Vessel Type It can be cylindrical or spherical.

Environmental Factor (liquid only) See table here below:

Surface Area Units These can be m2 or Ft2.

Latent Heat (liquid only) This is defined by the customer.

Vessel Area This method is an alternative to the Vessel Dimension form. Total area must be entered.

% Wetted Surface Area (liquid only) This indicates what part of the area is exposed to liquid before size with fire case.


Vessel Dimension This method allows for entering the Vessel Geometric data:

Units

Diameter

Length (seam to seam, so hemispherical or ellipsoidal flat ends height are not to be accounted)

Height above ground

Percentage full (liquid height from bottom of vessel)

Position (vertical/horizontal)

Vessel ends (flat/hemispherical/ellipsoidal)

Once entered, the SRVSpeQ software will calculate the Vessel Area.

Fire Protection Available options are Yes or No.


4.3.5 Fluid Data

The Fluid Data defines the Fluid properties.

A fluid database with defined properties is loaded in the SRVSpeQ program to default the values; however, you can override those properties by simply typing required data where designated.


In case of Vessel Fire Sizing, capacity is not allowed (the system will size the SRV based on vessel and not on capacity) and state of fluid after fire is required for liquids.

4.3.6 DIERS Data If the DIERS Method is recalled from the Sizing Method, Fluid Data must be entered with a dedicated input. Data is to be provided by customers. Three alternatives methods must be chosen:

C2.1 Direct integration of the Isentropic Nozzle Flow

C2.2 Two-phase flashing or non-flashing flow

With reference to API RP 520 8th edition, this method can be used in following cases:

1A. Two-phase system (saturated liquid and saturated vapor) enters the PRV and flashes. No non-condensable1 gas present. Also includes fluids both above and below the thermodynamic equilibrium point in condensing two-phase flow.

Example: Saturated liquid/vapor propane system enters PRV and the liquid propane flashes.

1B. Two-phase system (highly subcooled2 liquid and either non-condensable gas, condensable vapor or both) enters PRV and does not flash.

Example: Highly subcooled propane and nitrogen enters PRV and the propane does not flash.

C2.3 Sub-cooled liquid at the PRV inlet

With reference to API RP 520 8th edition , this method can be used when subcooled (including saturated) liquid enters PRV and flashes. No condensable vapor or non-condensable gas are present.

Example: Subcooled propane enters PRV and flashes.

1 A non-condensable gas is a gas that is not easily condensed under normal process conditions. Common

non-condensable gases include air, oxygen, nitrogen, hydrogen, carbon dioxide, carbon monoxide, and hydrogen sulfide.

2 The term highly subcooled is used to reinforce that the liquid does not flash passing through the PRV.


4.3.7 Size

Clicking the Size button will have the SRVSpeQ program run the calculation of the valve, sizing it under the product line defined in Valve Series with best size matching process conditions.

Valve Size can be different than required in Valve Data/Size if capacity is not matched.

At sizing of the valve, SRVSpeQ will recall a new screen, Select Accessories and Option.

4.4 Select Accessories and Option

This screen appears after sizing is performed and shows the valve sized according to data you entered.

Note: Configure step also is required.


4.4.1 Selection Summary

The Model No. is not populated until the valve is fully configured. Tag No. and Set Pressure indicated here are the only information that cannot be set on this screen; you must go back to Sizing & Selection and change values.

Sizing Notes is a free text note that can be entered here (see also paragraph 4.1).

Multi-valve Sizing This option allows for multi-valve sizing. There is no mandate in Section VIII that requires the use of multiple relieving devices, but in some applications the required capacity to be relieved may be too much for a single relieving device.


The SRVSpeQ software needs to have an orifice entered.

Then, a list of suitable orifices associated to their relevant discharge values appears.

Once the orifice is selected, the selection screen appears again, asking you to enter the information of the second valve having the process repeated. Note that the Tag No. here can be edited.

The SRVSpeQ software calculates the Capacity for the current valve and the Total Actual Capacity.


4.4.2 Valve Configuration and Variables

Tip:Valve Configuration shows the Configuration required by Sizing and allows you to change Type, Rating and Facing if further modification is required. The SRVSpeQ software also reports Capacity, Area and Orifice Size.

The Variables calculations are informational only.


4.4.3 Accessories and Options

This screen allows you to select options allowable for the sized series. This screen is dynamic, and only applicable options will appear.

4.4.4 Errors/Warnings

This screen shows warnings and errors from sizing.


4.5 Configure Parts/Material This screen is recalled from the Configure button on the Select Accessory and Option screen.

You can go into the detail of BOM and validate or change the option.

When multiple options exist under the same construction class (see Piston O-Ring Material on the above screen), first enter the value before accepting BOM.

Note: Accept BOM step also is required.

Once BOM is accepted, the system will return the Model No. in the Select Accessory and Option screen.


4.6 Drawings The SRVSpeQ program can preview drawings at Item level, having details of the Main valve, Pilot (if any) and Schematic.

The Print button allows for exporting in PDF.


5. Sizing Error Messages

As shown below, the SRVSpeQ software has an internal check on sizing errors that also reports actions to be followed to fix sizing.

Although other messages exist throughout the program regarding operational errors or input validation, those are included in-line with the code and not reported here, since they are not useful for sizing purposes.

ID No Message Description Resolution

1 The combination of design pressure and design temperature exceeds the allowable limits for the base material specified. Select a different base material or reduce the design pressure and/or design temperature.

Select a different base material or reduce the design pressure and/or design temperature.

2 The ratio of the flowing backpressure to the set pressure exceeds the allowable value for the bellows/backpressure design.

Revise backpressures or change valve type.

3 The value of total backpressure exceeds the 19000 series total backpressure limit of [percentage defined by specific calculation].

Revise backpressures or change valve type.

4 The ratio of total backpressure to set pressure exceeds the limit of [percentage defined by specific calculation] for this valve type.

Revise backpressures, or set or change valve type.

5 At the indicated flowing pressure and relieving temperature conditions, the fluid will be STEAM instead of WATER. Please revise the fluid data or pressure/temperature data.

Revise the fluid data or pressure/temperature data.

6 At the indicated flowing pressure and relieving temperature conditions, the fluid will be WATER instead of STEAM. Please revise the fluid data or pressure/temperature data.

Revise the fluid data or pressure/temperature data.

7 Per API 520, only the amount of the vessel within 25' of grade is required to be fire-protected. Therefore, based upon the value in the Height Above Grade field, no valve is required for this application.

Valve not required for this application.

8 The operating pressure/set pressure ratio is incorrect. This is causing a relieving temperature that exceeds the maximum recommended vessel wall temperature per API RP 520.

Revise operating pressure or set pressure.

9 The relieving temperature is above [percentage defined by specific calculation], which is out of range for calculating the superheat correction factor Ksh. Please revise the temperature and resize.

Revise the temperature and resize.



11 The viscosity exceeds the clean service pilot valve limit of above [percentage defined by specific calculation], and the set pressure is too high for the dirty service option. Please reduce the set pressure or viscosity, or select another valve type.

Reduce the set pressure or viscosity, or select another valve type.

12 Due to the pressure, backpressure, or temperature inputs, the valve type selected cannot be used in this application. Check input for accuracy or select another valve type.

Select another valve type.

13 The combination of flowing pressure and relieving temperature indicates that the fluid is supercritical steam. Please reduce the set pressure and/or relieving temperature, or resize under ASME Section I and select a 1700, 2900-40, or 3500 series valve.

Reduce the set pressure and/or relieving temperature, or resize under ASME Section I and select a 1700, 2900-40, or 3500 series valve.

14 A bellows design has either been selected or is required due to backpressure conditions.

Select bellows design.

15 The 19096M-BP design is required due to the backpressure and has been automatically selected.

Change design to 19096M-BP

16 Unable to size heat exchanger because the value of volume necessary to refill main valve dome could not be retrieved.

Revise selected temperatures.

17 The set pressure exceeds the limit for the required heat exchanger. Please reduce the set pressure and resize.

Reduce the set pressure.

18 Too many heat exchangers required for this valve. Please verify process data.

Revise selected temperatures and verify process data.

19 Invalid O-ring material specified. Specify O-ring material.

20 Unable to retrieve O-ring pressure limits. Specify different O-ring material.

21 Unable to retrieve O-ring temperature limits. Specify different O-ring material.

22 A valve solution could not be determined for the given service conditions, using the desired valve configuration. Please modify the desired valve configuration or verify the service conditions.

Verify the service conditions.

23 The operating pressure to set pressure gap is too small. Verify the service conditions.

24 An O-ring soft seat design is required due to the operating pressure-to-set pressure ratio. However, the set pressure or operating temperature exceeds the tolerances of all available O-ring materials.

Verify the service conditions or contact engineering if soft seat is required.



25 The set pressure is out of range. The maximum set pressure allowed for this valve is [percentage defined by specific calculation].

Revise set pressure or change valve type.

26 A bellows design is required for the T2 material variation and has been selected.


27 For this set pressure and relieving temperature, the fluid state is flashing (two-phase) in the valve outlet. The built-up backpressure due to the flashing may cause the selection of a bellows/BP design.


28 Based on the preliminary fluid data, DIERS sizing methods cannot be used. Please revise the fluid data or resize using standard sizing methods.

Revise the fluid data or resize using standard sizing methods.

29 The combination of design pressure and design temperature exceeds the allowable limits for the nozzle material specified. Select a different nozzle material or reduce the design pressure and/or design temperature.

Select a different nozzle material or reduce the design pressure and or design temperature.

30 Due to the ratio of total backpressure-to-set pressure, multiple valves are required in order to calculate an appropriate backpressure correction factor.

Size with multiple valves.

31 A valid supercritical correction factor (Ksc) could not be obtained, because the flowing pressure and/or relieving temperature is out of range.


32 The required valve pressure class exceeds the limit of 600# for the Cryogenic Trim design.


33 Please consult factory for heat exchanger sizing. Please consult factory for heat exchanger sizing.

34 Relieving temperature has been increased to the minimum value required for steam sizing.


35 A bellows design is required for the HA material variation and has been selected.


36 An O-ring soft seat design is required due to the operating pressure-to-set pressure ratio. However, the set pressure or operating temperature exceeds the tolerances of the o-ring material required by the HA variation.

Verify the service conditions or contact engineering if soft seat is required.

37 The flowing pressure and/or relieving temperature is out of range for calculating the superheat correction factor Ksh. Please revise the pressure/temperature and resize.




38 Unable to retrieve 3500 orifice information. Verify the service conditions.

39 The input viscosity value has produced an invalid viscosity correction factor. Please reduce the viscosity and resize.


40 Either the operating, relieving, or design temperature has exceeded the temperature limits (%0 to %1) of the %2 series.


41 The operating pressure exceeds the valve design limitation of [percentage defined by specific calculation] of the set pressure.

Revise the operating/set pressure.

42 The operating pressure exceeds the recommended limit of [percentage defined by specific calculation] of set pressure.


43 A pressure class greater than 900# is required, but Monel flanges are limited to 900# by ASME Code Case 1750. Please reduce the pressure/temperature or select a different base material.

Reduce the pressure/temperature or select a different base material.

44 The 19000 series cannot currently be sized for Steam under IBR. It may only be sized for Water.

Change valve type.

45 The maximum pressure for the 1900-UM design on steam service is [percentage defined by specific calculation]. Please revise the set pressure and/or MAWP.

Revise the set pressure and/or MAWP.

46 An input value is required in the specific gravity field. Input value in the specific gravity field.

47 A screwed or packed cap is required due to process conditions; however the 1982 series is currently unavailable with a screwed or packed cap on gas/steam service due to a capacity issue. Please consider a 19000 series valve as an alternative

Change valve type.

48 Only lb/hr and kg/hr may be used for capacity units on Steam. Change UOM.

49 The 1900-UM design is currently not available for Steam applications.

Change valve type.

50 Minimum design temperature for this application is [percentage defined by specific calculation]. Please increase the design temperature or revise other service conditions.

Increase the design temperature or revise other service conditions.

51 Low-temperature material variations are only available below -20 deg F (-28.9 deg C). Please select a different material variation or enter a lower temperature value.

Select a different material variation or enter a lower temperature value.



52 The 19000 L3 material variation is only available below -150 deg F (-101.1 deg C). Please select a different material variation or enter a lower temperature value.

Select a different material variation or enter a lower temperature value.

53 High-temperature material variations are only available above 1000 deg F (537.8 deg C). Please select a different material variation or enter a higher temperature value.

Select a different material variation or enter a higher temperature value.

54 An O-ring soft seat design is required for the selected valve. However, the set pressure or operating temperature exceeds the tolerances of all available O-ring materials.


55 Specific heat ratio (k) value has caused an invalid outlet temperature to be calculated. Please modify the specific heat ratio input so that it is greater than 1.

Select k greater than 1.

56 Valve set pressure exceeds pressure restrictions of China manufacturing license. Please reduce the set pressure and resize.

Reduce set pressure.

57 You have selected a nonstandard outlet rating. The outlet will be configured as fully-rated if you select it on the sizing input page, even if a lower rating is sufficient. If you intend to select a mating-only outlet, please return to the sizing input.

Revise the outlet rating.

58 Only AIR or STEAM can be sized for this valve type. Revise valve type or fluid type.

59 Relieving temperature and/or design temperature have been increased to the minimum value for steam sizing.

Informational message

60 Sizing for supercritical flowing pressure in combination with subcritical relieving temperature cannot be performed above [percentage defined by specific calculation]. Please revise pressure and/or temperature input.

Revise pressure and/or temperature input.

61 The 19000 H pressure class is required due to the design pressure, but is not available for the given design temperature. Please decrease the design pressure or increase the design temperature, or select a different valve series.

Decrease the design pressure or increase the design temperature or select a different valve series.

SRVSpeQ Lite Software - Valves | Valves€¦ · Consolidated* Pressure Relief Valve Sizing and...

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Transcript of SRVSpeQ Lite Software - Valves | Valves€¦ · Consolidated* Pressure Relief Valve Sizing and...