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Pipeline transport is the long-distance transportation of a liquid or gas through a system of pipes—a pipeline—typically to a market area for consumption. The latest data from 2014 gives a total of slightly less than 2,175,000 miles (3,500,000 km) of pipeline in 120 countries of the world. The United States had 65%, Russia had 8%, and Canada had 3%, thus 75% of all pipeline were in these three countries.
Pipeline and Gas Journal's worldwide survey figures indicate that 118,623 miles (190,905 km) of pipelines are planned and under construction. Of these, 88,976 miles (143,193 km) represent projects in the planning and design phase; 29,647 miles (47,712 km) reflect pipelines in various stages of construction. Liquids and gases are transported in pipelines, and any chemically stable substance can be sent through a pipeline. Pipelines exist for the transport of crude and refined petroleum, fuels – such as oil, natural gas and biofuels – and other fluids including sewage, slurry, water, beer, hot water or steam for shorter distances. Pipelines are useful for transporting water for drinking or irrigation over long distances when it needs to move over hills, or where canals or channels are poor choices due to considerations of evaporation, pollution, or environmental impact. Oil pipelines are made from steel or plastic tubes which are usually buried. The oil is moved through the pipelines by pump stations along the pipeline. Natural gas (and similar gaseous fuels) are pressurized into liquids known as Natural Gas Liquids (NGLs). Natural gas pipelines are constructed of carbon steel. Hydrogen pipeline transport is the transportation of hydrogen through a pipe. Pipelines are one of the safest ways of transporting materials as compared to road or rail, and hence in war, pipelines are often the target of military attacks.

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  1. P

    New boiler gas pipe question

    Hi i am about to do some work on my house and im having a new boiler fitted. My old boiler has a 15mm gas pipe and the new one is 22mm gas pipe. Can you just solder in a 15mm to 22mm pipe adapter Regards Pat
  2. V

    Water in customer gas pipe

    Hello All, I've been called out to a property where water has entered the gas pipe work within the property during installtion of a gas boiler. I have been asked to remove the water but have never done this before. The gas pipe is 22mm diameter rigid copper, runs for approximately 10m...
  3. V

    Water in customer gas pipe

    Hello All, I've been called out to a property where water has entered the gas pipe work within the property during installtion of a gas boiler. I have been asked to remove the water but have never done this before. The gas pipe is 22mm diameter rigid copper, runs for approximately 10m...
  4. Riley

    Gas pipe maximum/minimum depth

    Hi guys I am dealing with the most fussy customer I've ever come across Who is checking every single little thing anybody on this project does ( yes the electricians and builders are getting it in the ear as well). I would have walked days ago but I have quite a lot of money in materials...
  5. F

    Query on gas pipe sizing

    Hi to all, just noticed on my 25 kW combo boiler Worcester greenstar si compact that the gas input pipe is 22mm from the meter changing to 15mm pipe and then back to 22mm about 1 metre from boiler. Is that correct as it seems a bit odd? thanks fdc
  6. A

    GAS pipe sizing

    Hi hope someone can help me with my studies. I am studying to become a gas safe engineer, I am currently studying about pipe sizing and would like some help on how to calculate existing pipe size in a property. What would be the easiest why to calculate, I am using Gas Installation Technology by...
  7. B

    solanoid on gas pipe

    been asked to help a dementia suffer as there carer wants the gas pipe turned off overnight my only thought was an electrically operated solenoid has anybody done this or has anyone any other thoughts
  8. A

    Gas pipe size calculation

    Hi all! I am looking to see if anyone uses a good gas pipe size calculation app! I have been been plumbing and installing gas for over 12 years so obviously I know how to work it out long hand, I just want to see if any of these apps are worth the money to save myself time over the year! Thanks
  9. cr0ft

    Gas Pipe Squashed and Soldered

    Don't know what the technical term for this is, but the 15mm pipe inside the meter box (tee'd off the 22mm pipe from the meter union) looks like it's been crushed at the end then soldered up rather than having an end cap fitted or the branch removed. Tightness tested all the pipework and only a...
  10. A

    Safe gas pipe work?

    Hi, I wonder if anyone can help here. We are having major renovation works done on a house with our builder providing all tradesmen. We have been told that the following gas pipe work des not conform to current regulations. We don't seem to be able to get any other plumber to come out and...
  11. AlexGas

    Latest gas pipe install BS...

    Thought I'd share this with you guys, as it was news to me. I'm flicking through the latest BS 6891:2015 Specification for the installation and maintenance of low pressure gas installation pipework of up to 35 mm (R1¼) on premises. Wow, It is a bit bigger - the previous BS has 37 pages, the...
  12. Inverness

    gas pipe sizing

    revising for my gas, trying to understand pipe sizing. I've got the spec college book and I'm trying to get my head round the gas pipe sizing from the books from class. we don't start it until march but I'm wanting to get a head start as theres lot to study and I'm a slow learner. I'm...
  13. S

    Help - Is this a gas pipe?

    Hi Per the attached image, I have a pipe protruding from the floor in the kitchen where the previous owner had his cooker. I suspect that it is a gas pipe but would like confirmation. I am a bit confused as to why there is no shut-off. Can anyone please advise if an in-line shut-off can be...
  14. B

    Moving gas pipe

    hi all, i've been asked to relocate a gas pipe in a kitchen. at the moment it's running along the side of the walls but it now the customer wants it buried under the floor. it's a concrete floor ( i won't be doing any of the breaking or digging). :smart: If I remember correctly, the pipe has...
  15. T

    floorboard on gas pipe

    Hello ( new member) I am trying to replace my landing floorboards, having removed the last one i have discovered a gas pipe which has been fitted along 4 joists, there are holes cut into the joists to accommodate the pipe but there are 2 of the joists where the pipe is not flush and is...
  16. cr0ft

    Gas Pipe Sizing Question

    Gents, I don't have my gas books to hand but went to a quote tonight. Amongst other things the customer wants a gas boiler service. She asked me to look at a gas pipe outside. Immediate thoughts were that it wasn't sleeved at all going through the cavity wall. It was installed by a local...
  17. T

    Gas pipe in Cavity

    So wanting to do some building work at home and wondered if it was acceptable to build the gas pipe into the cavity of a wall. This is the pipe in question. Thanks for any help you can give
  18. M

    Gas pipe underground

    Hi all, Got a question regarding running a gas pipe under ground. My client has had a new meter installed at the end of their garden which is about 15m from the house. Is it right that you have to run it in steel barrel pipe? This is what the gas guy who I use has said needs to go in, he’s...
  19. D

    Red hot gas pipe !!!

    Hi I have a living flame gas fire fitted about 10 mth ago , the problem is when its been on for more than ten mins The control knob gets super hot as does the gas supply pipe, surely this cant be right can it ? Any help wud be appreciated
  20. Inverness

    continuity earth rod for gas pipe suitable

    i serviced and did a landlord safety certificate today and it did not have any earth continuity was not visible i know it has to be a minimum of 600mm. the customer wants us to get it earthed. we will get a sparky to take a earth connection from gas pipe to the consumer unit. the problem is...
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