Tuesday, September 16, 2014

[PPT] Under Ground Piping (Trench, Culvert, Buried)

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Types of Under Ground Piping:

Ø Trench Piping

Ø Culvert Piping

Ø Buried Piping

Sunday, September 14, 2014

[PPT] Accessibility Factors - Human Factor Guide Line

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Ø If height of ladder is more than 2.1m then ladder should be provided with safety loop.

Ø Ladder step interval should not be more than 300mm.

Ø Provide at least main height clearance from over head beam.

Ø Stair way slope from horizontal should be in range 45 to 60 degree.

Thursday, September 11, 2014

[PPT] Yard and Rack Area Piping

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Yard area piping: Piping out side power block is known as yard area Piping.

Yard area piping can be divided in two parts
Ø Above Ground
Ø Under Ground

In above ground piping following topic will be covered
Ø Rack Piping
Ø Sleeper Piping
Ø Clearance
Ø Human factor guide line

Tuesday, September 9, 2014

[PPT] General Pipe Routing Criteria

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General Pipe Routing Criteria

There are some criteria that optimize piping cost and proper functioning of system.

Ø Piping from source to destination should be as short as possible with minimum change in direction.

Ø Piping should not hinder any normal passage way also should not encroach any equipment maintenance space.

Sunday, August 31, 2014

[PPT] Basics of Pump Piping

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The Pump Should Be Located As Close As Possible To The Source Of Suction.

The Main Reason For This Is To Minimize Pressure Drop. This Keeps Line Sizes And Equipment Elevations To A Minimum Due To Support Availability.

Thursday, August 21, 2014

[PDF FILE] Introduction to Piping Engineering

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Here's a presentation on piping engineering in PDF format, now available for all. This presentation covers the basics points of piping, which are meant for those persons who are first time entering our EPC industry. This presentation covers various aspects of piping engineering like:

Wednesday, August 13, 2014

[Excel File] A Guide of Refinery Process

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This excel file (A Guide of Refinery Process) is indeed a great resource for learning basics of the whole refining process from crude oil to processed product like Gasoline or Diesel. I am sharing this to all readers for educational purpose. Please do share the link of this article with you friends and colleagues, so that they may also benefit from it. Download it and then view it as it's an interlinked file and cannot be viewed properly online.

 at One drive

Alternate: A Guide of Refinery Process.xls

Sharing is Caring...

Tuesday, July 8, 2014

Pressure Relief Valve Piping Design

Block valves are usually provided upstream (and downstream if discharging into a closed system) of pressure relief valves where necessary to permit on stream isolation and maintenance of the PR devices without interrupting process unit operations.

Where block valves are used, the installation should conform to the requirements of Section VIII of the ASME Boiler and Pressure Vessel Code when protecting an unfired pressure vessel. These valves are typically installed so that they are car sealed open (CSO). Mechanical interlocks or key systems are usually required for spared PR valve installations to help ensure continuous safety protection of the system.

Monday, July 7, 2014

Sequence of Distillation Column Piping Study

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The designer now starts thinking about the proper orientation of nozzles and provisions for access to the points of operation and maintenance.

Considerations of the pipeline leaving the tower area and the adjacent piping shall be visualised.

The first step is to orient the manholes preferably all in same directions. Normally, manholes shall be oriented towards dropout area within a 30° segment of column as this facilitates the lowering of tower internals to the main access way. The manhole segment of platform should not be occupied by any piperack.

Tuesday, July 1, 2014

Information Required for Distillation Piping

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The basic layout and general engineering specifications describe:

  • The minimum access, walkways, platforms width and headroom requirements.
  • Handling facilities for tower internals, manhole covers, line blinds, relief valves. 
  • Maximum rise of ladders.
  • Pipe-system requirements, such as open or closed relieving systems.
  • Minimum line-size and required hose-stations. 
  • Access to valves and instruments. 


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