TM-1100 AVEVA Plant (12 Series) Pipework Modelling Rev 5.0

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(12 Series)

Pipework Modelling



Revision Log

Date Revision Description of Revision Author Reviewed Approved

03/08/2007 0.1 Issued for Review BT

01/05/2008 0.2 Reviewed BT KM

07/05/2008 1.0 Approved for Training BT KM RP

27/08/2008 1.1 Issued for Review BT

27/08/2008 1.2 Reviewed BT SW

12/12/2008 2.0 Approved for Training 12.0.SP3 BT SW RP

11/06/2009 2.1 Issued for Review 12.0.SP4 BT

21/08/2009 2.2 Reviewed BT KM

26/08/2008 3.0 Approved for Training 12.0.SP4 BT KM RP

26/08/2008 3.1 Issued for Review PDMS 12.0.SP5 BT

02/11/2009 3.2 Reviewed BT KM

02/11/2009 4.0 Approved for Training PDMS 12.0.SP5 BT KM RP

01/11/2010 4.1 Issued for Review PDMS 12.0.SP6 BT

05/11/2010 4.2 Reviewed BT BG

05/11/2010 5.0 Approved for Training PDMS 12.0.SP6 BT BG RP


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1 Introduction ... 9 1.1 Aim... 9 1.2 Objectives ... 9 1.3 Prerequisites ... 9 1.4 Course Structure ... 9

1.5 Using this guide ... 9

1.6 Setting up the Training Course ... 10

2 Pipework Modelling ... 11

2.1 Entering a Design Session ... 12

2.2 Piping Specifications ... 13

2.3 Setting the Appropriate Specification... 13

2.4 Pipework Toolbar ... 14

2.5 Pipe Creation Form ... 15

2.6 Pipe Branches ... 15

2.7 Pipe Branch Heads and Tails ... 15

2.7.1 Branch Head Attributes ... 16

2.7.2 Branch Tail Attributes ... 16

2.8 Pipe Branch Head / Tail Positioned Explicitly ... 17

2.9 Pipe Branch Head / Tail Connected ... 17

2.10 Pipe Branch Components (Pipe Fittings) ... 18

2.11 Creating Branch Components (Pipe Fittings) ... 18

2.12 Component Creation Form ... 19

2.13 Component Selection Form ... 20

2.13.1 The components Tab ... 20

2.13.2 The Specs. Tab ... 20

2.13.3 The Errors Tab ... 21

2.13.4 The Options tab ... 21

2.14 Branch Components List Order ... 23

2.15 Typical Design Explorer showing Tube ... 24

2.16 Arrive and Leave Points ... 25

2.17 Quick Pipe Routing ... 26

2.18 Extended Handle Pop-ups ... 26

2.19 Rotational Handle Pop-ups ... 28

2.20 Quick Pipe Routing (Example) ... 29

3 Pipe Routing a worked example ... 31

3.1 Entering AVEVA Plant ... 32

3.2 Entering the Piping Application ... 32

3.3 Piping Hierarchy ... 32

3.4 Pipe Creation form ... 33

3.5 Creating Piping Components ... 35

Exercise 1 – Pipe Branch Worked Example ... 44

Exercise 2 - Creating a Second Branch ... 44

Exercise 3 - Building the Pipework ... 45

Exercise 3a - Pipe 80-B-7 ... 46 Exercise 3b - Pipe 150-B-6 ... 47 Exercise 3c - Pipe 250-B-5 ... 48 Exercise 3d - Pipe 200-B-4 ... 49 Exercise 3e - Pipe 100-C-13 ... 50 3.6 Copying Branches ... 56

Worked Example - Pipe 150-A-57 ... 56

3.7 Selecting components from an Alternative Specification ... 57


Exercise 4g - Pipe 50-B-9 ... 67

Exercise 4h - Pipe 40-B-10 ... 68

4 Replacing Components ... 69

4.1 Replacing Components using the same Piping Spec. ... 69

4.2 Replacing Components using an Alternative Piping Spec... 70

4.2.1 Fixed Cut Mitred Bends ... 70

4.2.2 Variable Cut Mitred Bends ... 73

Exercise 5 - Replacing Components ... 73

5 Data Consistency Checker ... 75

5.1 Possible Types of Data Error ... 75

5.1.1 Angular Alignment ... 75

5.1.2 Axial Alignment ... 75

5.1.3 Consistent Bores ... 75

5.1.4 Connection Types ... 75

5.1.5 Minimum Tube Length ... 75

5.2 Starting the Data Consistency Checks ... 76

5.2.1 Specifying Parameters and Tolerances ... 76

5.2.2 Minimum Tube length ... 77

5.3 Data Consistency Check Report Format ... 77

5.3.1 Data Consistency Diagnostic Messages ... 77

5.4 Some Examples of Data Consistency Diagnostic Messages ... 78

5.4.1 Branch Head Errors... 78

5.4.2 Branch Tail Errors ... 79

5.4.3 Plain Branch Errors ... 79

5.4.4 Component–Specific Diagnostics ... 80

5.4.5 End–Component Diagnostics ... 81

Exercise 6 - Data consistency check ... 82

6 Interference or Clash Detection ... 83

6.1 Displaying Obstructions ... 84

6.2 Executing a Clash Run ... 85

Exercise 7 – Clash Detection ... 86

7 Hole Management ... 87

7.1 Introduction to Hole Management ... 87

7.1.1 Hole Element Storage ... 88

7.1.2 Request and Approval Workflow ... 88

7.1.3 Non-penetration Managed Holes ... 90

7.1.4 Use of the Hole Management Application ... 91

7.2 Creating the Fixing Area ... 91

7.3 Creating single Pipe Penetration ... 91

7.4 Pipe Penetration Example Couplings ... 96

7.5 Creating Multiple Pipe Penetrations ... 97

7.6 Pipe Penetration Examples ... 99

7.7 Managing Holes – Requesting a Hole ... 100

7.7.1 Using the Hole Association Filters ... 100

7.8 Approving Holes ... 103

7.9 Rejecting a Hole ... 104

7.9.1 Rejecting on Initial Review ... 104

7.9.2 Rejecting after Approval ... 105

7.10 Making a Hole Redundant ... 105

7.11 Non-Penetration Managed Holes ... 107

7.11.1 Free Holes ... 107

7.12 Creating a Non-penetration Managed Holes ... 109

Exercise 8 – Hole Management ... 111

8 Isometric Production ... 113

Exercise 9 – Isometric Production ... 113

9 Sloping / Falling Pipelines ... 115

9.1 Orientation and Positioning Components in Falling Pipelines ... 115

9.2 Creating Sloping Pipes ... 116


10.1 Position>Component>Plane Through ... 121

10.2 Positioning Piping Items Relative to Other Design Items... 121

10.2.1 Position>Component>BoP/ToP (Infront) ... 121

10.2.2 Position>Component>BoP/Top (Behind) ... 122

10.3 Position>Component>BoP/Top - Non–orthogonal Pipelines ... 122

10.3.1 Positioning Onto another Item ... 122

10.4 Positioning Under another Item ... 122

10.4.1 Positioning Infront another Item ... 123

10.4.2 Positioning Behind another Item ... 123

10.5 Position>Component>Clearance ... 123

10.5.1 Position>Component>Clearance (Infront) ... 123

10.5.2 Position>Component>Clearance (Behind) ... 124

10.6 Position>Component>Clearance - Non–orthogonal Pipelines ... 124

10.6.1 Positioning with Clearance Onto another Item ... 124

10.6.2 Positioning with Clearance Under another Item ... 124

10.6.3 Positioning with Clearance In-front another Item ... 125

10.6.4 Positioning with Clearance Behind another Item ... 125

10.7 Forwards and Backwards ... 125

10.8 Alternative Positioning Example ... 126

Exercise 12 – Alternative Positioning ... 128

11 Pipe Assemblies ... 129

11.1 Using Pipe Assemblies during Piping Design ... 129

Exercise 13 - Using Pipe Assemblies during Piping Design ... 131

12 Pipe Splitting ... 133

12.1 Pipe Splitting at a component ... 133

12.2 Pipe Splitting on a Plane ... 134

12.2.1 Elements to Split ... 135

12.2.2 Split Pipe Options, (Split Pipe on Plane) ... 135

12.2.3 Moving Down Stream Components ... 135

12.2.4 Plane definition ... 135

12.2.5 Assembly Selection ... 137

12.2.6 Split Pipe ... 137

12.3 Split Pipe into Segments ... 138

Exercise 14 - Pipe Splitting ... 138

13 Pipe Editing (Component Bore/Specification) ... 139

13.1 Changing Component Spec ... 139

Exercise 15 - Pipe Editing (Component Bore/Specification) ... 142

13.2 Changing Component Nominal Bore ... 143

Exercise 16 – Changing Component Nominal Bore ... 145

14 Pipe Fabrication Machine ... 147

14.1 Creating an Example Fabrication Machine ... 147

14.2 Example Fabrication Machine ... 147

14.3 Setting the Pipe Fabrication Machine at Zone Level ... 148

Exercise 17 – Creating a Fabrication Machine ... 148

15 Pipe Routing using Bends selected via a Pipe Fabrication Machine. ... 149

Exercise 18 – Creating a Pipe using Bends selected via a Pipe Fabrication Machine. ... 150

16 Production Checks ... 151

16.1 Setup Production Checks ... 151

16.2 Spool Generation ... 153

16.3 Creating extra Spools ... 154

16.4 Re-spooling the Pipe ... 154

16.5 Feed Excess ... 155

16.6 Spooling Log File ... 156

16.7 Pipe Spools ... 157

Exercise 19 – Production Checks ... 157





Pipe routing is probably the activity that consumes most time on any large project and it is also one, which causes the most problems. Pipe routing in PDMS has always been one of the major strengths of the system, as you will discover in this module.



The aim of the course is to provide the skills required to use the PDMS Piping Design application in the most productive way, to introduce some of the techniques that are used in the other Design applications and have an understanding of Piping components, routing, checking isometrics and simple Clash detection.



At the end of this Piping Design training course, the participants will able to:  Understand the basic concepts of Pipes and Branches.

 Understand the use of piping specifications in AVEVA Plant.

 Understand the concept of branch heads and tails and the importance of component list order and flow direction within a branch.

 Create position and orientate piping components.  Orient and position components in falling pipelines.  Apply Insulation and Tracing to the pipelines

 Use more complex positioning with relation to other design items.

 Run Data Consistency Checks to screen or file including Parameters and Tolerances and to understand most of the diagnostic messages.

 Perform simple Clash Checks  Understand Basic Hole Management  Produce Check Isometrics.

 Create and use Piping Design Assemblies.

 Understand pipe splitting on components or by using Assemblies.



The participants must have completed TM-1011 - AVEVA PDMS Foundations course.


Course Structure

Training will consist of oral and visual presentations, demonstrations and set exercises. Each workstation will have a training project, populated with model objects. This will be used by the trainees to practice their methods, and complete the set exercises.


Using this guide

Certain text styles are used to indicate special situations throughout this document, here is a summary; Menu pull downs and button press actions are indicated by bold dark turquoise text.

Information the user has to Key-in will be red and Bold Annotation for trainees benefit:



Setting up the Training Course

Login to PDMS as a TRAINER using the details provided by the Trainer, for example: Project: Training (TRA)

Username: TRAINER

Password: T MDB: A-PIPING

Module: Design

In Design select Utilities>Training Setup… from the main menu to display the Training Setup form. Select the Foundations tab.

Click the DELETE Stabilizer radio button and click the Apply button. This deletes any existing Stabilizer model elements.

Select the Piping Tab Click the Add Stabilizer Equipment button and click the Apply button. Select the General Tab Click the Add Sample Systems button and click the Apply button

These options create the Stabilizer Equipment and default Piping Systems ready for the training course

Click the Cancel button on the Training Setup form.

Select Design>Exit from the main menu and click the Yes on the Save Changes message form.

Access to PDMS is controlled using the AVEVA Training Setup Forms and Menus: Utilities > Training Setup in ADMIN. For the Piping Training Course a PDMS project with empty sites in the appropriate




Pipework Modelling

The following Chapter describes how PDMS is used for modelling Pipework. There is a separate design hierarchy for pipe routing, as shown below. In principle, each pipe element may own a number of branches. In turn, branches may own a number of piping components, e.g.: valves, reducers, tees, flanges, etc.

The difference between pipes and branches is that a branch is only considered to have two ends, while a pipe may have any number of ends, depending on the number of branches it owns.

Below shows a pipe with three ends and two branches. The second branch is connected to the first at the tee.

This brings in another rule that says that although a branch only has two ends, it may own components (in this case a tee), which connects to other branches. These simple concepts enable any number of piping configurations to be developed, and forms the basis of all existing designed PDMS Pipework.

Alternatively the branch could leave the tee through the offline leg as shown.



Entering a Design Session

To start the PDMS application, Select All Programs > AVEVA > PDMS 12.0 > Run PDMS

The trainer will provide PDMS User Names and Passwords. Typically, these will be as follows: On the AVEVA PDMS Login box, enter

Project Training TRA

Username A.PIPER

Password A


Module Design

and then click OK

A default screen layout will be displayed comprising the general menu bar for the application and a Design Explorer window showing all the objects from the current project database. Design windows can be repositioned and, in some cases, resized.

Once the Design application has been started, if necessary, switch from the General application to the Pipework application. Select Design > Pipework from the main menu to change application.



Piping Specifications

In the same way that design offices have standard piping specifications, PDMS has a set of specifications from which the designer can select. All the components within PDMS must be defined in the Catalogue and be placed in a Specification before they can be sleeted. In the Training Project there are three such specifications:




These specifications contain all the fittings required for the course exercises.


Setting the Appropriate Specification

The first task when building a pipe is to decide which specification to use. For the Training Project, the first letter in the pipe name represents the specification to be used. For example, the pipe /150-B-5 has the letter „B‟ to represent the specification.

The specification letters are as follows: - A = /A1A

B = /A3B C = /F1C

Having decided on the appropriate specification, this is then set as an attribute of the pipe. Any subsequent branches will automatically be assigned with the same specification (although this can be re-specified if required).



Pipework Toolbar

The Pipework Toolbar is used to Manipulate Pipes, Branches and Branch Components.

The default Piping Specification can be reset using this Icon.

Default Pipe Specification

Used for the Creation of Pipes

Modifying Pipes

Display Piping

Components Creation Form

Used for reselecting Piping Components.

A range of Piping Components can be deleted using this icon.

Used to Align components.

Used to Orientate Components.



Pipe Creation Form

To Display the Pipe Creation form, select the Show pipe creation form icon from the Pipework Toolbar

The Create Pipe form is now displayed.

Pipes hold reference data i.e. Primary System, Pipe, Insulation and Tracing Specs, and also the Temperature and Pressure of the pipe.

Before creating the pipe, it is necessary to navigate to the correct zone using the Design Explorer,

The Bore field indicated on the form is the nominal bore for this pipe and does not affect the pipe route.


Pipe Branches

Branches serve two purposes:

 They define the start and finish points of a pipe route (known as the Head and Tail in PDMS).

 They own the piping components, which define the route.

The position and order of the piping components below branch level determine the physical route. In PDMS it is only necessary to consider the fittings, because the pipe that appears between fittings is automatically set (or implied) by PDMS according to the specifications of the fittings.


Pipe Branch Heads and Tails

All branches need to have a start and end point. These can be a position in space (3D co-ordinates), the flange face of a nozzle, a tee or various other points in your design. Heads and tails are set up via a series of attributes that belong to the branch element.


2.7.1 Branch Head Attributes

HPOS The position in the zone where the branch starts.

HCON The connection type of the branch end (Up to a 4 character code for flanged, butt weld, screwed, etc.).

HDIR The direction in which the start of the branch is pointing (as if you were looking down the bore). HBOR The bore of the pipe (this can be metric or imperial).

HREF The name of the item to which the branch head is connected (e.g. /C1101-N1). If this is not set, then the branch is open to the atmosphere for a vent or drain.

HSTU This is a reference to the catalogue, which determines the material of the first piece of pipe, between the start of the branch and the first fitting (this still needs to be set, even if there is a fitting connected directly to the head).

2.7.2 Branch Tail Attributes

TPOS The position in the zone where the branch ends.

TCON The connection type of the branch end (Up to a 4 character code for flanged, butt weld, screwed, etc.).

TDIR The direction in which the end of the branch is pointing (as if you were looking back down the bore). TBOR The bore of the pipe (this can be metric or imperial).

TREF The name of the item to which the branch tail is connected (e.g. /150-A-3). If this is not set, then the branch is open to the atmosphere for a vent or drain.

It is not necessary to specify each of these attributes every time a branch is created. On most

occasions when a branch head or tail is defined, it will be connected to another pipe or to a nozzle. The act of connecting to another item sets the branch head/tail attributes automatically.

A Pipe is just an administration element. The Branch element holds the geometric data .On selection of

Apply on the Pipe Form the Modify Pipe form is automatically displayed so that the branch head and tails can be specified.



Pipe Branch Head / Tail Positioned Explicitly

After clicking the Change button on the Head/Tail Detail pane above, the following form appears:

When setting the Branch Head or Tail explicitly, each of the previously described Branch attributes needs to be specified.

Bore: Nominal Bore size of the pipe. The pull-down list contains all sizes available in the specification. Connection: Short code eg: FBB, FBD defining the Head connection type

The Pick Position link label can be used to graphically set the World Position.

Position: Position in world co-ordinates

The Copy To Tail button can be used to set the position of the Branch Tail to the same position as the Branch Head.

The Head Direction is the direction of the flow and the Tail Direction is opposite to the flow.

Refer to the AVEVA coding standards for a full definition of connection types.


Pipe Branch Head / Tail Connected

Use the Change button on the Head/Tail Connection pane to connect the head to another database item, e.g.: Nozzle, Branch Head/Tail, etc

Using the graphical Pick button, select an item to connect the pipe head to.

A list of available connections form is displayed, Select the appropriate connection and then press



Pipe Branch Components (Pipe Fittings)

When a branch head and tail is initially defined, the branch will consist of a single piece of pipe running in a straight line between the head and tail positions. This will appear as a dotted line between the two points unless the head and tail are aligned along a common axis and have the same bore. (The dotted line indicates that the branch route is geometrically incorrect.)

The next step in designing a pipe is to create and position a series of fittings, which define the pipe route required. Just as on a drawing board, it is necessary to decide which piping components are needed in order to satisfy the requirements of the process. The components must be arranged so that the pipe meets the design requirements. However, unlike on the drawing board, it is not necessary to know any fitting dimensions; PDMS derives these automatically from the catalogue.

To create components, first select an item from the list of fittings available from the associated piping specification. Typical fitting types are Elbows, Tees, Reducers, Flanges, Gaskets and Valves etc. There is some intelligence built into the PDMS forms so that by placing for example a valve the associated Gaskets and Flanges will also be created.

For all piping components, the following procedure must be followed: -

Select the component from the piping specification, position the component and set the orientation.

Tube does not have to be created explicitly; it is created automatically and implied between adjacent fittings.


Creating Branch Components (Pipe Fittings)

The “Component Types” list shows the piping components that are available in the current piping specification. The piping specification attribute is set at both Pipe and Branch level.

The Select button is used to select components from an alternative specification.

Components are created by selecting the required fitting type from the list displayed.



Component Creation Form

The Component Creation form shows details of all the Sub-Types available in the piping specification. .

For example a Flange may be Slip-on, Weld Neck, Screwed or Blind.

Select the Sub-Type required for the Design process.

Items are created in order with or against the flow of the pipe.

A tick box is available to automatically create

adjacent components. This is very useful for creating the flanges of in-line flanged components. For example, if a Valve is added the gaskets and flanges will also be added.



Component Selection Form

From the Pipework Toolbar, select the Show pipe component selection form icon, the component Selection form will be displayed.

2.13.1 The components Tab

The Component Selection form can be used to change an existing component Sub Type or Spec. after it has been added, preserving its connections to adjoining components wherever possible. The selected component type will be displayed in the Type window, i.e. Flange etc.

From the available Sub-Types list select the SLIP ON FLANGE. The Component is changed and this can be seen in the graphical view.

If the component has a different fitting-to-fitting length this can be reconnected using the Reconnection Button.

2.13.2 The Specs. Tab


2.13.3 The Errors Tab

The Errors tab displays any errors which may result if an unsuccessful Reconnection operation is attempted.

2.13.4 The Options tab

Descriptions This option allows the user to select the nature of the information shown for selected Components in the lists in the Components panel


The Descriptions of the component can be shown in Full, R Text, S Text, T Text or just as a Cat-Ref.

Tag component can be used to turn the Component marker on and off (on by default).

Tag constraints can be used to turn on and off the highlighting of Components which could give bad connectivity if an adjacent Component is changed.

Auto reconnect if selected, automates the function of the Reconnection button on the

Components tab. Errors which may result if an unsuccessful Reconnection operation is attempted will automatically appear on the Errors panel

Reconn. free ends if selected, re-establishes connectivity if the Pipe Head (or Tail) becomes disconnected as a result of Component reselection

Ignore positioned if selected, ignores elements which have their RLOCK attribute set to 0. (RLOCK is the attribute for the branch members creation status code used by Router.) Selecting this option does not stop the model editor moving the Component, but by default the Component with RLOCK= 0 will not be moved when it is reconnected to the Component being changed



Branch Components List Order

With equipment and structures, the order in which you create items is of no importance to the final outcome. With piping components, the order in which they are laid out, as well as their individual positions and

orientations, determines the final pipe route.

To help with this a Component Position Pointer is displayed.

Below is an example Design Explorer list showing the components of a branch /100-B-8/B1



Typical Design Explorer showing Tube

Tube is shown by changing the Explorer setting

Settings > Explorer

Select Show TUBI/ROD

The example below shows the Explorer Window with the Tube Shown.

When using PDMS the list order becomes second nature after the creation of a number of branches. In the interim, pay attention to the list order. Consider carefully where the next item is going to be inserted by watching the Component pointer and the Design Explorer.



Arrive and Leave Points

Piping components have P–points (similar to those for equipment primitives).The significance of P–points is two–fold. Firstly, they define the connection points, and secondly, they determine the branch flow through the component by means of Arrive and Leave attributes.

For the reducer shown below, the large end is at P1 and the small end is at P2. If this component is used to increase the bore of the branch, the flow in the direction of the branch will be from P2 to P1. In order to tell PDMS the necessary flow direction , there are two numeric attributes, Arrive and Leave, which must be set to the p–point numbers required. In this case, Arrive would be set to 2 and Leave would be set to 1. (The default is Arrive 1 Leave 2). This is included for information, as the forms and menus will handle all connections. P2 Z X P1 Y P0 Couplings / Nipples P2 Z P3 X P1 Y Reducer P0 P2 Z X P1 Y P0

Caps / Plugs / Blinds / Flanges

P2 Z X P1 Y P0 Nozzles

Tees / Branch fittings / Olet fittings

Z P1 Y P0 P3 P2 X Z Y P0 P2 P0 Z Y P2 P2 Z P1 Y P0 Bends / Elbows X


2.17 Quick Pipe Routing

The Quick Pipe Routing Handle has three parts,

Extend Route Handle – This is used to extend the route in the direction indicated by the handle.

Cardinal Direction Handles - These are used to change the direction of the routing to one of the cardinal directions from the current frame of reference.

Rotational Handles These allow the extended route handle to be interactively directed by the user.

The quick pipe routing handle is used to define a routing vector within the constraints of the currently selected badly defined route. A badly defined route is defined in general terms as where either, there is a bad alignment between two components, the head or tail of a branch is incomplete, i.e. where the head/tail attributes are left in their default state, the head/tail is positioned but not connected and the head/tail connection type is unset.

This usually equates to the dotted line representation of implied tube, where implied tube cannot be drawn. An exception to the above could be where a Pipe Branch does not have specification reference set.

The handle can be dragged by using either primary or secondary mouse buttons. By default the handle will move in multiples of the currently defined linear increments.

If the secondary mouse button is clicked as the cursor is over the pipe routing handle, the user will be presented with a context sensitive menu. The menu will display the available options which relate to the drag.

2.18 Extended Handle Pop-ups

The following options are available on the Extend Handle before a drag.

Enter Offset This gives the Constrained Move form which allows you to enter an offset from the Cardinal Direction Handles Extend Route Handle Rotational Handles


Enter Leg Length This gives the Leg Length form which lets you enter an absolute distance of the handle from the last previous change in the direction‟s position.

Distance From Origin This displays the Explicit Distance form which allows you to enter an absolute distance of the handle from the previous component‟s origin position.

Extend Through Feature This allows you to identify features with which to align, along the current route direction.

Orient to Point This directs the handle either directly to a point feature or rotates about the vertical axis, maintaining horizontal offset, when a linear feature is


Align with Direction This allows you to identify features with which the handle is to be aligned.

Explicit Direction This gives the Enter Direction for <direction> Axis form which lets you enter an explicit direction for the handle.

Component Choice This allows you to select the type of Component that is created by the Routing Handle when a change in direction occurs. The Component can be set to either Elbows or Bends.

Distance Feedback This allows you to select how the Routing Handle displays distance

feedback. This can be set to either Offset (offset from the previous handle‟s position), Leg Length (distance of the handle from the last previous change in direction‟s position), or FromOrigin (distance of the handle from the previous Component‟s origin position). Use the D 'hotkey' to cycle through the options.

Show Rotation Handles This toggles the display of the Rotation Handles (selected by default).

Cancel This returns the handle and selection to its original state before the drag The following option is only available when the end being routed to is ill-defined, i.e. there is no End Route Handle displayed:

Connect To This enables you to select an element which the route end can be connected to, eg unconnected Nozzles, Tees etc.

The following options are available on the Extend Handle on completion of a drag, i.e. when the secondary mouse button has been used to drag the handle and no special actions are active:

Extend This leaves the handle at the shown position.

Cancel This returns the handle and selection to its original state before the drag. The following options are available when in “snap to feature mode” and the end being routed to is ill-defined or unconnected and the identified feature is a connectable p-point of an item to which an end can be connected, e.g. a Nozzle with no connection reference set:

Extend This leaves the handle at the shown position

Connect This leaves the handle at the shown position and connects the ill-defined end to the identified target.

Connect and Complete This establishes a connection to the identified item and completes the route and exits the route mode when applicable.

Cancel This returns the handle back to its original state before the drag. The following options are available when in “snap to feature mode” and the end being routed to is well defined and the identified feature is the End Route Handle.


2.19 Rotational Handle Pop-ups

The following options are available on the Rotation Handle before a drag

Enter Value This gives the Rotate Selection About form, enabling you to enter a value to rotate the graphical selection about the selected rotational axis

Orient to Point This allows you to pick a p-line through a point with which to orient the Rotation Handle.

Align with Direction This allows you to identify features with which the handle is to be aligned. Planes will be displayed to indicate a p-point direction (pointer symbol) or a p-line direction (symbol). Clicking and releasing the SHIFT key will reverse the direction of the handle.

Align With Thisdisplays the Enter Direction For <direction> Axis form which allows you to align the handle with a specified direction, or as close as possible to the given direction, about the axis of the Branch.

Rotate Handle Allows you to rotate the Locator Handle, using the same movement options as the main Rotation Handle menu. These options move the Locator Handle only, they do not move the Graphical Selection. Alternatively a 'freehand' movement of the Rotate Handle can be accomplished by clicking the H key with the handle selected and the left mouse button held down.

The Locator Handle may be rotated independently of the Graphical Selection in order to change the frame of reference for the next operation on the Graphical Selection.

Rotate Handle>To World This option aligns the Locator Handle with the World co-ordinate system, without rotating the Graphical Selection.

The Locator Handle Y axis points North, and the Z axis points Up.


2.20 Quick Pipe Routing (Example)

The tasks of setting up pipes, branches and components are simplified by the use of forms and menus. The main thing to remember when using the application is which specification you are currently using as a default.

The course exercises and examples will illustrate different means of pipe routing by giving examples of many of the situations you will encounter.

The quick pipe routing functionality will allow the user to correct the path of a pipe wherever there is an ill defined route within a branch, i.e. where the dotted line is displayed instead of implied tube.

Highlight the dotted line, and select the Model Editor icon from the Model Editor Toolbar. The Pipe Component Modification handle will now appear at the component leave end.

Enter the feature highlighting mode by clicking the F key on the keyboard or by selecting Selection > Feature Highlighting from the pull down menu

Select the pipe component modification handle and press the right mouse button. From the pop-up select

Component Choice > Use Bends. Holding down the left mouse button, drag the pipe modification handle across to theother end and still holding down the left mouse button, click the right mouse button. A second pop-up appears, select complete

The bend and the implied tube are added to complete the route

The bend that has been added by the system can later be changed to a smaller radius bend or an elbow.

If the component choice had been Use Elbows, then this would not have completed the route due the default elbow component is the first elbow component in the specification i.e. a 45 degree elbow




Pipe Routing a worked example

The following worked example demonstrates how to build Pipe /100-B-8 and Branch /100-B-8/B1 and the piping component build sequence.

The Trainer will provide the Stabiliser Equipment using the Piping Tab on the Training Setup Form. Utilities > Training Setup



Entering AVEVA Plant

Enter the PDMS project,

Start > All Programs > AVEVA > PDMS 12 > Run PDMS or use the Icon provided by your Trainer, your Trainer will advice you of your user names and password a typical example is shown below.

On the AVEVA PDMS Login box, enter

Project Training TRA

Username A.PIPER

Password A


Module Design

and then click OK


Entering the Piping Application

Pipework is created in the Piping Application

Design > Pipework

Select Set Default Pipe Specification from the Pipework Toolbar

On the displayed Default Specification Form

Select Piping Spec - A3B

Select OK


Piping Hierarchy

Create the hierarchy in which branch is to be routed, the piping zone /ZONE-PIPING-AREA01 may have been created on an earlier course.

Create a New Zone or Navigate to the existing Pipe Zone (/ZONE-PIPING-AREA01)


Name ZONE-PIPING-AREA01 Set Zone Purpose to PIPE Piping



Pipe Creation form

Select the Show pipe creation form Icon on the Pipework Toolbar

Enter the Pipe Name 100-B-8 Primary SystemProcess System B

Select the Bore 100

Click the Apply Button

The Pipe Spec. will automatically be set to the default spec selected earlier. In this case /A3B

The Branch Head and Branch Tail will be connected to Equipment Nozzles.

Select the Change Button from the Head Connection pane

Head Detail is used to set the position of the Branch Head explicitly and we will use this option later, whilst Head Connection is used to connect the Branch Head to, for example, a nozzle or tee


The new pipe will be connected to equipment /D1201 and /P1501A. Add these equipments to the graphical display they are located in zone /ZONE-EQUIPMENT-AREA01 which is is site /SITE-EQUIPMENT-AREA01.

Use the Pick Button and identify nozzle D1201/N3 to set the Name to Nozzle D1201/N3 select Connect

Once the Branch Head head has been connected, the Modify Pipe form will again be displayed. Connect the Pipe Tail to nozzle P1501A/N1

This leaves a “dotted” line joining the head and tail. The form can be dismissed or docked for use later

Navigate to the Pipe Branch 100-B-8/B1 that was just created.



Creating Piping Components

In PDMS pipe (or tube) is not routed explicitly. Components are positioned and the tube is implied between them.

Display the Pipe Component Creation Form from the Show pipe component creation form Icon on the Pipework Toolbar

Where possible the main pipe route is created; valves and other in-line fittings are added later.

Connect a Flange and associated Gasket to the Branch Head, which turn, is connected to a Nozzle.

If the Auto. Create Adjacent tick box is checked, PDMS will choose an appropriate Gasket when a Flange is selected from the Component Types

Select Flange

The Flange creation must be done at Branch Level

Select the Weld Neck Flange (WN), ensure the component creation is With Flow and the Auto. Create Adjacent button is

Ticked. Select Connect

Using the same form select a Weld Neck Flange for the Pipe Tail. In the Design Explorer navigate back up to Branch Level.


There will now be a Gasket and Flange at the Branch Head and the Branch Tail.

Using the model editor, create the first Elbow after the Flange that is connected to the Branch Head.

Select the Dotted Pipe using the LH Mouse button.

Select Model Editor Icon from the Main Menu Form

Using the LH Mouse Button drag the Pipe Route Handle Down 500mm and release the mouse button.


The Blob (or Sphere) on the branch will be deleted automatically later in the tutorial. It will appear in the Design Explorer as an Elbow.

An elbow is created at each Change in direction. This could be changed to a Bend (if there are bends available in the spec)

Bends and Elbows can be selected using the Component Choice option shown on the right click menu below.

The pull down is displayed by clicking the RH Mouse Button whilst hovering over the Model Editor Axis Other options are also available from this pull down and some will be used later.


Create an Elbow at the flange connected to the Branch Tail

Navigate to the flange on the Branch Tail using the LH Mouse Button.

The Component Pointer moves to the Flange to indicate where the next component will be created.

The Display shows the component creation is against flow from the last time the Component Creation form was used. The component Creation Form will still be displaying Flanges.

Select the Choose Button and reselect Elbow

Select a 90Deg. Elbow with Sub Type (EL90)

Make sure Against Flow is selected.


Position the elbow through a North Position of N 302600 by dragging the Elbow along the North/South axis using Model Editor Mode. Rotate the elbow through 180 Deg

The World Co-ordinates are displayed at the bottom of the main graphics window. Fine adjustment can be obtained using the up and down arrows on the keyboard

Model Editor Increments are adjusted using: Selection > Set Increments

The default setting is 50mm and 5mm for fine adjustment.

Set the Fine Increment to 1.00 and select OK


On falling pipes components could be positioned using Position > Component > Plane Through

Select Through Coordinate…

Enter the coordinate of N 302600

Select OK and Apply

Standard Orientation commands can also be used to direct components.

Create a Tee and position it through W 313575

Select a 100NB Equal Tee. SType TEE

The Tee will be created Against Flow.

Select the following Configuration icon to leave by the offline leg (P3):

Select Connect

Note there are 3 ways the Tee can be selected :

Flow Through Tee

Leave by Connection

Arrive by Connection

The Designer can select the appropriate selection method depending on the pipe route.


Using Model Editor Drag the Tee through W 313575

The pipe can be completed using Quick Pipe Route Mode

First Select the Dotted Part of the Pipe and enter Model Editor.

Select Selection > Feature Highlighting or by Pressing F Whilst in the Model Editor

Note Feature Highlighting status represented by tick in selection menu. Tick indicates feature is active.

Drag one Arrow over the other Arrow using the Right Hand Mouse Button. Release the Mouse Button


The Blob that was created earlier will automatically be deleted.

Place 2 Gate valves in the branch. The valves will be placed in the correct position later in the exercise. Select a Valve Sub Type GATE Valve on the Components Creation Form


As there is a choice of Flanges the Component Creation form is displayed

Select Weld Neck Flange (WN) and then Click Done

Choose another GATE valve and position it in a similar way.


Position the valve and its connected components Fitting to Fitting with the second Elbow using the Model Editor. Turn off Feature Highlighting Mode, highlight the flange with the left hand mouse button and drag the assembly towards the second elbow as shown below. Connect the flange to the elbow.

It is possible to move the valve assembly to other legs in the branch, these are indicated in blue.

The Valve can also be rotated around its axes using the Model Editor.

Exercise 1 – Pipe Branch Worked Example

Create pipe 100-B-8 and Pipe Branch 100-B-8/B1 as shown in the worked example above.

Exercise 2 - Creating a Second Branch

To complete the pipe create a second Branch that connects the tee to pump /P1501B. Build up the Branch components as before.


Select the <New Branch> Button

Connect the Branch Head to the Tee and the Pipe Tail to the Suction Nozzle of pump /P1501B. Following the previous example, connect the Flanges at the Branch Tail, quick route the elbow using the Model Editor and then place the Valve.

When creating components, ensure that the correct branch has been set by using the <Set Branch> button on the Create Components form.

Exercise 3 - Building the Pipework

Start to build up the Pipework on the plant. Refer to the drawings for positions and components required along each pipe. Select the correct specification for each pipe. In general, the naming convention of the pipes is built up from pipe size, the third character of the specification (A3B) and a line number.


Exercise 3a - Pipe 80-B-7

The Nozzles N2 on Equipment /E1302A and N1 on Equipment /D1201 are both the same size and are aligned vertically, therefore the implied tube will be displayed as shown below. It is only necessary to create a gasket and a flange at the Head and at the Tail of the Branch. Ensure the gaskets/flanges are created at branch level.

The direction of flow is indicated by the black arrow. Hence the HEAD of the Branch is connected to Nozzle E1302A/N2 and the TAIL of the Branch is connected to Nozzle D1201/N1.


Exercise 3b - Pipe 150-B-6

The Flanges and elbows at both the Head and Tail of this pipe should be created fitting to fitting. The elbows are rotated as required using Model Editor. This is quite a simple pipe so it could be routed using quick route mode.

The HEAD of the Branch is connected to Nozzle C1101/N5 and the TAIL of the Branch is connected to Nozzle E1302B/N1.

Use the Model Editor to rotate the first elbow to the East.


Exercise 3c - Pipe 250-B-5

In this example, it is necessary to create two Branches. Flow directions are indicated by the black arrows. The HEAD of the first Branch is connected to Nozzle E1301/N3 and the TAIL of the first Branch is connected to Nozzle C1101/N2. The HEAD of the second Branch is connected to Nozzle E1301/N2 and the Tail is connected to the TEE.

Use the Align selection/component Icon on the Pipework Toolbar to position the first elbow at the correct elevation. This button is used to align components with the next item in list order. In this example, the Elbow is aligned with the Flange connected to the Branch Tail.

After creating the first two elbows, create a Concentric Reducer to increase the bore size from 200mm to 250mm. Use the Config icon on the RHS to indicate an increase in bore size is required. Define the leave bore required by using the pull down menu.


Exercise 3d - Pipe 200-B-4

The direction of flow is indicated by the black arrow. Hence the HEAD of the Branch is connected to Nozzle C1101/N3 and the TAIL of the Branch is connected to Nozzle E1301/N1.

The bottom section of this pipe has a small offset of approx 15 Deg. To build this pipe, firstly create the Head flange/gasket and the first Elbow with Flow (forwards mode). Next, create the Tail flange/gasket and the connected Elbow against Flow (backwards mode) Create Elbow 2 with flow and align it to Elbow 3 using

Align selection/component button as described earlier.

Elbow 2 can be then be directed to face towards the next elbow using the Direct selection/component Icon on the Pipework Toolbar. This button orientates the PL of the Current Element towards the next component.


Exercise 3e - Pipe 100-C-13

This pipe should be routed onto the Pipe Bridge, as the Pipe Bridge would normally be created by a Steelwork Designer it is necessary to exit PDMS and re-enter PDMS as the Steelwork Designer Create the Pipe Bridge Steelwork and then re-enter as a Piping Designer. The Pipe Bridge Steelwork is created by using the Training Set-up Form.

Exit PDMS, using the Design > Exit menu option and re-enter as a Steelwork Designer.

Project Training TRA Username A.STEELMAN

Password A


Module Design OK


The steelwork for this pipe bridge is created using the Training Setup Form.

Select Utilities > Training Setup

On the Piping tab

Select Add Stabiliser Pipe Rack

Set the units to be Metric

Press Apply

Select Design > Savework to save the changes.

Exit PDMS Design > Exit and re-enter as a Piping Designer.

Add the Pipe Rack to the 3D view as shown.

On the AVEVA PDMS Login box, enter Project Training TRA

Username A.PIPER

Password A


Module Design


This pipe must be routed to piping spec F1C as it is stainless steel. For the purposes of the training the pipe branch head will be connected using Event Driven Graphics (EDG) by using the Pick Position option on the Modify Pipe Form. The pipe tail however should be created explicitly as described.

Add the /PIPERACK, and Equipment /E1301 elements to the 3D view.

Navigate to the Piping Zone and create Pipe 100-C-13 as described in the previous examples.

On the Modify Pipe Form Pick Change from the Head Detail

Select Pick Position

Change the Positioning Control to Ppoint and Snap

Identify PPoint 1 of Nozzle E1301/NS1 using the Cursor If a nozzle is selected, PDMS will allow connection using the following prompt


To set the Branch Tail, select the Tail Detail Change button on the Create Pipe Branch form.

Set the details as shown on the form. Bore 100

Connection OPEN (The pipe will have an open end.)

Direction W (as this is the opposite direction to the pipe route direction)

West 303000

North 308280

Up 104937 Select Apply

The Branch head is connected to Nozzle /E1301/NS1. Create the Head Gasket, Flange and the first elbow as described before. Set the direction of the elbow to be W 45 N. Create the second elbow and position it through W319760. Set the PL direction to be UP.

The third elbow is created and positioned with the Bottom of Pipe (BOP) onto the top of the steelwork (TOS) using the Quick Pipe Router

Enter Model Editor with feature highlighting enabled (F). Select the dotted part of the pipe in Model Editor mode.



Copying Branches

If there are branches that contain similar components, it is useful to copy a complete branch then move the new branch into position. To create a copy, select the branch to be copied then choose Create > Copy > Offset

This will display the Copy form. The branch head and tail will have to be reconnected and the new branch renamed.

Worked Example - Pipe 150-A-57

This pipe should be routed using /A1A which is a 150# Carbon Steel specification. The second Branch will be copied as described above. Route Branch /150-A-57/B1 from the open Pipe Bridge to /P1502B/N1. The Branch Tails of this pipe will be connected to the suction of pumps P1502A and P1502B, which has 300# Flanges. As there are no 300# flanges in our piping spec, they will need to be selected from spec /A3B this is done by setting the Alternative Spec.

The Pipe Starts with an Open End on the Pipe Bridge.

Create the new pipe as described previously. Define the Branch Head using Modify branch head and specify the position explicitly.


The Branch Head Position should be set as shown Bore 150 Connection Open Direction W West 303000 North 308530 Up 104965

The Direction is opposite to the flow and the positions are westings and not eastings.

Connect the Branch Tail to /P1502B/N1


Selecting components from an Alternative Specification

On the Component Creation Form

Use the


button to display a list of available specifications.

Select A3B

Once the alternative spec has been selected the Use Alternative Spec. Tick Box will be activated.

Select Done

Once an alternative spec is selected the user can toggle between the Branch Spec and Alternative Spec using the tick box on the Component Creation form displayed below..

Create the Gasket and Flange at the Pipe Tail from the alternative spec A3B. Tick the Use Alternative Spec box on the component creation form.


Branch /150-A-57/B1 is created as shown below: -

Copy the branch to create the other branch /150-A-57/B2. Navigate to the Branch

Select Create > Copy > Offset

As the distance between the nozzles on Pumps /1520A and /1520B is unknown, it is necessary to copy Element to Element. Select Offset from Element to Element


Delete the Tee and Elbow shown using Delete range of piping components

Identify the Tee and Elbow as shown.

Connect the Head and Tail of the Branch using the Pipe Modification form.

The Branch Head should connect to the Tee and the Branch tail should connect to Nozzle


Orientate the Elbow through 180 deg, The pipe is as shown below:

The Branch should be named 150-A-57/B2 Select Modify > Name from the main menu.


Exercise 4 - Completing the Pipework

Complete the design of the pipes: 80-B-14, 80-A-11, 100-C-12, 100-B-2, 150-A-3, 100-B-1, 50-B-9, and 40-B-10 as detailed on the following pages. Ask the Trainer for assistance as required.

Exercise 4a - Pipe 80-B-14

The Head of Branch 80-B-14/B1 is connected to the nozzle D1201/N2. The Tail Bore should be set to 80NB. Other branch tail details can be left as default. The pipe spec is /A3B.

The pipe is routed from the branch head and completed by connecting the branch tail to the last member using the pipe modification form once the last gate valve is positioned.

Valve /FCV-113 is an Instrument Control Valve and is selected as an Instrument from the specification. Name the Instrument Valve using Modify > Name

There is a second Branch 80-B-14/B2 which consists of a Globe Valve assembly only. The Tee required for this bypass is an 80 x 50 unequal Tee.

The Globe Valve, Flange and Gasket on the By-pass should be selected from the A300 Spec. On a project there may be a HOLD or Valve / Instrument spec for selecting in-line equipment that is not available in the current specification during initial pipe routing. On the Training Course spec A300 is being used for this purpose.

There are several Tee Types in the specification available for selection, e.g.:, Set-on, Sockolet and Butt Weld.


Exercise 4b - Pipe 80-A-11

This pipe is spec /A1A – ANSI CLASS 150 CARBON STEEL. The head of the first Branch 80-A-11/B1 connects to the tail of Branch 80-B-14/B1 which was created in the previous exercise. The tail is set explicitly and is positioned at W303000, N309280, U104925.

The head of the second branch 80-A-11/B2 connects to the tail of Branch 80-B-14/B2.

The Gaskets and Flanges at the Branch Heads should be selected from spec /A3B as they are connecting onto 300# valves.


Exercise 4c - Pipe 100-C-12

This pipe should be routed using specification /F1C – ANSI CLASS 150 STAINLESS STEEL The main Branch Tail is connected to Nozzle E1301/NS2, The Branch Head is created explicitly at W303000, N308830, U104937.


Exercise 4d - Pipe 100-B-2

This pipe uses specification /A3B. The head of the main branch is connected to Nozzle C1101/N1. Connect each of the two branch tails to the last member.


Exercise 4e - Pipe 150-A-3

This pipe uses specification /A1A. The head of Branch 150-A-3/B1 is connected to the tail of Branch 100-B-2/B1. The tail is set at explicit coordinates W303000, N308080, U104964.

The second Branch 150-A-3/B2 is connected at the head to the tail of Branch 100-B-2/B2.

The gasket and flange at the two branch heads will need to be selected from spec /A3B as they are connecting onto 300# valves.


Exercise 4f - Pipe 100-B-1

This pipe uses specification /A3B. The head of the main Branch 100-B-1/B1 is connected to Nozzle /P1520B/N2. The head connection should utilise a 50NB slip-on (SO) flange connected to a 100x50 reducer (SType: NSN, Nipple Swaged Bevel X Plain).

The tail is connected to Nozzle C1101/N6 on the column.


Exercise 4g - Pipe 50-B-9

This pipe uses specification /A3B. The head of the main Branch 50-B-9 /B1 is connected to Nozzle P1501A/N2 on the pump. The tail is connected to Nozzle /C1101/N4 on the column.

The flanged Valves should be selected from spec /A300

During initial pipe routing, a HOLD or Valve / Instrument spec can be used to select in-line equipment not available within the current spec. Spec A300 is used within the Training course to demonstrate this functionality.


Exercise 4h - Pipe 40-B-10

This pipe uses specification /A3B. The head of the main Branch 40-B-10 /B1is connected to the OLET of Branch 50-B-9/B1. The tail is positioned explicitly. The fittings used on this pipe are screwed NPT.




Replacing Components

It may become necessary to replace existing components. This is done using the Component Selection Form.


Replacing Components using the same Piping Spec.

In the following example the gate valve will be changed to a Globe Valve and the components reconnected. Display Pipe /100-B-1

Navigate to the GATE valve indicated. Set the mode to be against flow using the component creation form.

Select the Show pipe component selection form Icon

Select the Globe valve (GLOB) the valve will be reselected.

The Globe valve is displayed.

As the Globe Valve is a different size the Reconnection button is activated.

To reconnect all the associated components select the



Replacing Components using an Alternative Piping Spec

In the following example an elbow is replaced by a Mitred Bend. Mitred bends have been improved with the introduction of a default geometry set, the number of cuts (ncuts) attribute and a number of dynamic p-points added for dimensioning etc.

Ncuts 0 Ncuts 1 Ncuts 3

4.2.1 Fixed Cut Mitred Bends

Pipe Spec /A150 in the Sample Project has been supplied with Mitred Bends. The following example uses a Bend in spec /A150 in order to demonstrate how Mitred Bends are used.

Navigate to Elbow 4 of Pipe /100-C-13


On the Specs Tab change the spec to A150

Return to the Components Tab and change the Type from Elbow to Bend


Select a 1 Cut Mitre

Select a 3 Cut Mitre


4.2.2 Variable Cut Mitred Bends

On selection of a Variable Cut Mitred Bend, the number of cuts (Ncuts) can be altered using the modify attributes form.

Select VAR ANGLE VAR RADIUS, VAR CUT Mitred Bend from the Component Selection form Select Ncuts to 10 on the Modify > Attributes Form. Select Apply

The Ncuts Attribute is only used if the bend catalogue parameter number 4 is set to -1, this is described later.

Exercise 5 - Replacing Components

Using the example above replace a Gate Valve with a Globe Valve and modify a pipe to include a Mitred Bend. Change the numbers of cuts on the Mitred Bend.





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