Loading Data

Self-load, thermal load and seismic load of piping system shall be considered as loading data. Special instruction for loading data is described below:

(1) Nozzle of vessel Heat Exchanger and Tower

Nozzle reaction forces shall be informed by using the form sheet . If allowable load is prescribed, nozzle reaction forces exceeding the limit shall be informed.

(2) Lug Plates for Vessels, Heat Exchangers, Towers and Tanks.

Any vertical load greater than 500 kg shall be indicated.
When the thrust force is greater than 500 kg. the thrust force and its direction shall be indicated.
Strength of support member shall be checked for large vertical load or thrust force.

(3) .Platform of Equipment.

Any concentrated load which is greater than 375 kg shall be indicated on the information drawings.

(4) Pump

Nozzle load which exceeds the allowable load specified in "Standard Practice for Piping Flexibility Analysis'" shall be informed by using the form sheet

(5) Tank Nozzle

Loading data for tank nozzles (6" and larger in size) shall be informed by using the form sheet

(6) Pipe Rack

a. As a rule, self load of each line on beams shall be informed as uniform load (kg/m). however, if self loading data of the line shall be informed as concentrated load individually.
b. For anchor points and guides on the main beam, if the thrust force is greater than 350 kg, loading data with direction shall be indicated at each loading point.
c. When the load of piping system work away from the center of beam or column, the moment arm shall also be clearly indicated as well as the load data.

(7) Structure (Including furnace structure)
a. Piping load works on beam shall be informed as concentrated load.
b. When the load of piping system work away from the center of beam or column, the same consideration shall be given as specified per. 3.6 (c ).
c. For insert plate, if the load is greater than 1000kg, loading data shall be shown on information drawing with size and location of the insert plate.
d. For structure floor, if the load at support point exceeds the following value, the loading data shall be indicted on information drawing.
- RC floor Vertical load thrust force 1000 kg
Thrust force 500 kg
- Steel floor Vertical load thrust force 500 kg
Thrust force 500 kg
Piping load greater man above should directly be loaded on beams not steel floor plate, and if necessary, sub-beams for loaded on beams not steel floor plate, and if necessary, Sub-beams for load transmitting shall be arranged.
e. If the vertical load of a line due to thermal expansion or contraction of piping system is greater than 500 kg. the loading data of the line shall be informed as concentrated force combined with self load.

(8) Stanchion

a. All loads working on stanchion shall be informed.
b. Piping support shall be designed so that no thrust force works on stanchions, unless
stanchion is so designed to sustain the thrust force.
c. If necessary, instruction must be given to Architectural Group so that friction force due to thermal movement of piping system will be evaluated by them.

(9) Pipe Sleeper

a. Self load of piping shall be informed as uniform load (kg/m). however, if the load of a
line is greater than 1000 kg at support point, the load data of the line shall be informed as concentrated force separately from other lines.
b. All thrust force and their direction shall be informed.
c. If necessary, instruction must be given to Architectural Group so that friction force due to thermal movement of piping system will be evaluated by them.

(10) Pipe Support Foundation

a. In paved area, if the thrust force greater than 300 kg works on pipe support or the vertical load is greater than 1500 kg, the base plate type and loading data shall be informed.
For pipe support foundation, moment due to thrust force of piping shall also be informed. If necessary, instruction must be given to Architectural Groups so that friction force due to thermal movement of piping system will be evaluated by them.
b. In unpaved area, the loading data shall be informed to all support foundations. However, if the vertical load for pipe support is less than 300 kg; the vertical load may not be necessary to inform.
c. Type of base plates of pipe support foundations shall be informed to Civil Design Group. Dimensions of pipe support foundation shall be designed by Civil Design Group.
d. The numbering system for stanchions, support foundations and operating stages shall be as per project-wise.

Plot Plan Preparation

What is Plot Plan
(1) Plot Plan is a Drawing Which Express Complete Configuration of the Unit (or Plan) by Showing Equipment Layout and Structure Planning
(2) Plot Plan is One of the Most Important Basic Design Documents, such as P&I Diagram, for Detail Design Engineering

Required Data for Plot Plan
(1) Space of Unit Area
(2) Process Flow Diagram and Utility Flow Diagram
(3) Proposed Plot Plan (from Client or Estimation Package)
(4) Skelton or Drawing Which Shows Dimensions and Configuration of Equipment
(5) Job Specification for Other Requirements
· Applicable laws and Regulation
· Take in/out Route for Raw Material and Product
· Average Wind Direction

Basic Philosophy
Process Equipment Shall be Arranged within a Given Unit Area to Consider Route of Take in/out Raw Material and Product for Smooth Flow of the Process.

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Isometric Drawing

Procedure of making isometric Drawing: 
1. Created on isometric paper. 
2. "Shop Isometric" should be prior precedence than "field isometric". 
3. Each line must be able to show a clear information. 
4. Drawing should be clear and easy to read. 
5. Piping each path can be made when necessary in some isometric drawing. 
6. Pipe line routes should be made thicker from other lines. 
7. If there is any doubt in how the image, then information, in order to review prior to construction . 
8. Isometric drawing generally does not scale, but may make seproporsional. 
9. Each reference image should be indicated. 
10. Direction of image needs to be listed as well as the number isometric. 
11. Type of pipe support should be clear. 
12. Description repairs (revision) should be clear also the last. 
13. General description must be clear and specific. 

Isometric drawings should show this: 
1. Title of the pipe line. 
2. Channel pipe, which is the number, size, classification, direction 
flow and to repair. 
3. Dimensions or the size of each material. 
4. Coordinates, orientation, ELEVATION, each piping path and equipment. 
5. Reference image a connection or a connection piping path. 
6. Size gasket or gasket. 
7. Symbols, specifications, codes, standards must be clear and 
engineering division has been set previously. 
8. Forms of employment. 
9. If there is a change in the form of work or limit the work must be clearly indicated. 
10. Coordinates, orientation, ELEVATION and type of pipe support. 
11. Nozzle and pressure on the pressure valve savety. 
12. Coordinates, orientation, and type of instrumentasinya ELEVATION. 
13. Form of connection, such as with pengelasan, thread, weld and thread, and so forth. 
14. Not need to brace the branch connection is used. 
15. Slope to a vertical direction with the "V" and horizontal with code "H". 
16. Signs of curvature and curvature broken. 
17. O'let or communicator as weldolet, and sockolet - other. 
18. Number of the spool at a desired image isometric. 
19. Is stress relief or not. 
20. Type of insulation. 
21. Boiler piping codes such as pressure, temperature and service. 
22. Other references such as LDT (Designation table line), P & ID, image vendors, a special reference case required field. 

After the isometric drawing is declared finished after checking through some phase or examination, then He is ready to send this picture as a guide to the field of employment in the field, but must remain checking against a P & ID, LTD, models and other reference.

Information Drawing

(1) General

The information drawings shall be made in accordance with the latest piping study drawings and the result of stress analysis.

(2) Equipment

The information drawings for equipment design shall be prepared by using form sheets.

The following information shall be given on the drawings:

1. Nozzle and platform arrangement including location of vessel and manhole davits as specified in the project Specifications.

2. Location of pipe support components to be furnished by manufacturer's such as patch plates and support clips/lugs on equipment.

3. Location and height of saddles with indication of fixed side. 

4. Type and height of foundations

5. Locations and dimensions of holes piping passing through.

6. Loading data for heavy weight pipe supports and platforms.

(3) Pipe Rack

The following information shall be given on the drawings.

1. Width, span and elevation.

2. Anchor locations and trust forces

3. Walkways, platforms and ladder locations where required.

4. Location and type of insert plate to be provided on RC columns and beams

5. Piping loads to be included.

a. Pipe weight

b. Fluid weight: 

- Full water weight for liquid

- 30% of full water weight for liquid and gas or vapor

- No weight for gas and vapor

c. Insulation weight, if insulation is required.

6. Location, type and load for pipe supports on pipe rack.

7. Location and width of instrument and electric cable tray/duct.

(4) Structure

The following information shall be given on structure drawing.

1. Length, width, elevation and location of beams supporting equipment.

2. Indication of floored area and its elevation

3. Location of stairway and ladder

4. Location and dimension of holes piping passing through

5. Provision of trolley beams and its elevation, where required.

6. Indication of interconnecting stages, where required.

7. Location and type of insert plates to be provided on RC columns and beams.

8. Location of removable handrails, where required.

9. Location and load for pipe support on structure

(5) Pipe Stanchion, Major Support and Operation Stage

The following information shall be given :

1. Pipe stanchions and major supports to be designed by Architectural Group

a. Location, shape, elevation, width and load to be informed.

b. Thrust force and its direction to be informed where required.

2. Operation stage to be designed by Architectural Group

- Location, shape, elevation and width.


(6) Civil

The following information shall be given on the drawings :

1. Funnel Locations

Additional funnels other than shown on the Engineering Flow Diagram shall be provided at the location described below:

a) In front of pumps

b) In compressor shelters and structures

c) Near pipe rack columns, where required


2. Location, width, elevation, load and thrust force of pipe sleeper.

3. Location, width and elevation of valve pit.

4. Location, shape, elevation, load and thrust force of foundation for pipe support.

5. Location, width and elevation of pipe trench

6. Required paved area

7. Information of U/G piping

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