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pipework

Within industry, piping is a system of pipes used to convey fluids (liquids and gases) from one location to another. The engineering discipline of piping design studies the efficient transport of fluid.Industrial process piping (and accompanying in-line components) can be manufactured from wood, fiberglass, glass, steel, aluminum, plastic, copper, and concrete. The in-line components, known as fittings, valves, and other devices, typically sense and control the pressure, flow rate and temperature of the transmitted fluid, and usually are included in the field of piping design (or piping engineering), though the sensors and automatic controlling devices may alternatively be treated as part of instrumentation and control design. Piping systems are documented in piping and instrumentation diagrams (P&IDs). If necessary, pipes can be cleaned by the tube cleaning process.
Piping sometimes refers to piping design, the detailed specification of the physical piping layout within a process plant or commercial building. In earlier days, this was sometimes called drafting, technical drawing, engineering drawing, and design, but is today commonly performed by designers that have learned to use automated computer-aided drawing or computer-aided design (CAD) software.
Plumbing is a piping system with which most people are familiar, as it constitutes the form of fluid transportation that is used to provide potable water and fuels to their homes and businesses. Plumbing pipes also remove waste in the form of sewage, and allow venting of sewage gases to the outdoors. Fire sprinkler systems also use piping, and may transport nonpotable or potable water, or other fire-suppression fluids.
Piping also has many other industrial applications, which are crucial for moving raw and semi-processed fluids for refining into more useful products. Some of the more exotic materials used in pipe construction are Inconel, titanium, chrome-moly and various other steel alloys.

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  1. A

    Potential Air locks in TP210B cylinder pipework

    I have a Santon TP210B cylinder - I am told I have air in the system which is stopping the hot water from working. I have chopped into the existing heating circuit to add another radiator, but the hot water system seems to be suffering the most, which I cannot get my head around - This new...
  2. H

    10mm pipework for cold water..why not?

    why is 10mm pipe not used for taps/toilet outlets? Why do I need the same diam pipe at the wash basin or toilet as I do at the bath or shower? I can't think of a reason why not so before I implement this, have I missed something that's not so obvious to a layman?
  3. D

    Power shower outlet pipework

    Hi all, I'm about to replace the pump used for my power shower / bath filler. It's a Stuart-Turner Turbo 30T 3.0bar pump, 22mm inlet and outlet. The installation has been done so that the 22mm outlet reduces to 15mm pipework within less than a metre of the pump. I was thinking of...
  4. B

    Green ' gunge ' on pipework.

    Can anyone explain what is happening to the pipework in a relatively new boiler in the attached image?
  5. Bogart

    Underground heating pipework and flushing.

    Right have decided to have a good go at my heating system so I have basically 2 questions. 1. I have an old oil boiler situated some 25m away from the house. It leaves the boiler in 28mm copper changes to 35mm copper in the boiler house , exits the boiler house and goes underground and just...
  6. M

    Can water flow rate be measured at the supply pipework?

    Hello Guys I recently posted a thread about low water pressure at taps in a new kitchen installed by a company using sub-contractors. I have 0.44 bar of hot water pressure and am getting a flow rate of 4.5 Lpm at the new hot monobloc. The Blanco people say that the taps are rated at minimum 0.3...
  7. P

    Central heating pipework

    Just moved in, and lifted the floor to repair a damaged radiator pipe. The system was originally a gravity fed/ immersion tank as the pipework goes to that corner of the room an back again. There is an extra pipe which goes between the flow and return side of the pipework. The boiler is...
  8. N

    Hunter Genova Pipework

    I came across this for the first time yesterday, i have seen something similiar in the past when i was an apprentice but that was a long time ago. Just thought that i would put this up so as to help anyone out there that may come across it. Its plastic pipe that takes cold main, in this...
  9. B

    Pipework under sink and bathroom basin with pics query

    Hi everyone, I took pictures to better illustrate my questions and hope it helps. The hot water pipe under the sink (top pipe) has a valve on it with the number 15 on it and the cold pipe (under top pipe) has a stopcock which stops the water coming into the kitchen sink. Does the cold pipe...
  10. K

    Clicking / banding radiator pipework under floorboards

    Long story short - the pipework in all my upstairs bedrooms are now suddenly ticking / knocking under the floorboard when I switch the heating on (for a good few minutes) and the same again when I switch it off (lasts longer) Nothing has changed since a few years ago when we changed the...
  11. T

    Radiator change on large pipework

    Hi, I have 1 radiator in the house where the radiator is on a different diameter pipework. The rest of the house is 15mm but this could be 22mm, I'm not sure. I want to replace this radiator with a new one and if possible I dont want to disturb the original parkay flooring. What do I need to...
  12. S

    Bringing pipework through ensuite floor

    When bringing pipework through the floor of the ensuite, I wonder just how tight I need to make the fit between the floor and the pipework? I have seen a previous comment about getting the fit as tight as possible, but I’m not sure why that is necessary? Reason I ask is that it will be a PITA...
  13. P

    Hot water keeps drawing in air, pipework incorrect?

    Hi lads and lasses, I have this customer that has to keep forcing mains pressure back through his vented hot water system every week due to a blockage or air as he explained it. He said it has been like it since he has moved in but has got progressively work he has been there for around 6 years...
  14. A

    Location of megaflo in overall household pipework?

    Hi all. If you were retrofitting a Megaflo with system boiler, would you be wanting to have a direct mains water feed going into the Megaflo first and then the feed continuing into the rest of the house or doesn't it matter? At the moment, the mains water go straight into the kitchen (where the...
  15. Sid Viscous

    Persistent air issue in pipework through loft

    Evening chaps, I'm having a bit of a mare with a pumped shower I fitted a few months back. The customer had an existing gravity shower fitted & wanted a pump fitting. I put an RP75PT in the loft on the original pipework, a Surry flange on the cylinder and AAVs on the positive side of the pump...
  16. S

    Buying a boiler to fit existing pipework

    Hello I have a valiant eco tech pro 286-33 which isn’t quite 10 years old , and after repairing it several times I’ve now accepted I’m flogging a dead horse and I need a new one . Trying to keep costs down I would like to shop around and source my own boiler but it occurs to me that if the...
  17. C

    pipework query, pump feeding pump?

    Hi, we have an oil boiler which feeds HW, rads, and two UFH heating circuits using 4 zone valves and 2 pumps. Would anyone have a look at the photo and tell me if its right that the green pump has to be on to feed the UFH mix pump? Could the UFH pump have been teed in parallel with the green...
  18. T

    Blocked pipework in potable water supply

    Dear all, I'm hoping you can help with this because our plumber is trying hard but he's struggling to solve the problem. I'll describe the system. The water enters the apartment in a washing machine cupboard. At the inlet and at the washing machine the pressure is high. The pipework then...
  19. K

    Avoiding airlocks in central heating system teeing off from the main pipework

    central heating radiators to feed upstairs and downstairs main paperwork runs in ceiling void downstairs ,need to tee off to radiators downstairs do I tee off from above or below on the main pipework to avoid airlocks
  20. A

    38kw combi boiler supplying a shower. 22mm or 15mm pipework?

    38kw combi boiler supplying a shower. 22mm or 15mm pipework? I am refurbishing a 1st floor bathroom and installing a shower to replace a bath and have a 22mm/15mm pipe quandary. There is currently a newish Worcester Greenstar 38CDi Classic combination boiler and my question is should I redo...
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