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plastic pipe

Plastic pipe is a tubular section, or hollow cylinder, made of plastic. It is usually, but not necessarily, of circular cross-section, used mainly to convey substances which can flow—liquids and gases (fluids), slurries, powders and masses of small solids. It can also be used for structural applications; hollow pipes are far stiffer per unit weight than solid members.
Plastic pipework is used for the conveyance of drinking water, waste water, chemicals, heating fluid and cooling fluids, foodstuffs, ultra-pure liquids, slurries, gases, compressed air, irrigation, plastic pressure pipe systems, and vacuum system applications.

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  1. PolypipeOverlay

    Pipes going in at angle into Underfloor Heating Manifold Problem?

    Is it acceptable to have plastic pipe going into the manifold at such angles as shown in photo? There is definitely stress on the fittings as the pipe is pulling hard to one side on numerous connections. The manifold does not leak under pressure test. Should it be kept as is if it does not leak...
    • PolypipeOverlay
    • Thread
    • america angle central heating system going heating manifold pipe pipes plastic pipe problem underfloor underfloor heating usa
    • Replies: 4
    • Forum: USA
  2. C

    Grey plastic pipe in heating system.

    Doing some decorating I discovered that some of the central heating pipe work is grey plastic. System installed 20 years ago by previous owners. My question is was that normal practice back then and is it likely to cause any problems in future? All exposed pipe work to rads is copper.
  3. W

    Leak under boiler from white plastic pipe

    Hi Folks, I am new to the forum. I am from Blackburn, UK. I have a leak under the boiler, I am not 100% sure but I think it is the condense pipe that feeds from the boiler to outside. I have a couple of pictures. It is the white plastic pipe and the leak is around the u-bend. Please can you...
    • W22ULF
    • Thread
    • boiler condense leak pipe plastic plastic pipe under urgent vallient white
    • Replies: 6
    • Forum: Australia
  4. Inverness

    What kind of plastic pipe is this

    I'm needing a type of fitting that can join copper pipe work. The plastic pipe on radiator isn't jg or hep20. Cheers
  5. E

    D2 plastic pipe instead of copper due to high cost.

    Hi all, can anyone suggest a plastic pipe and fittings with resistance to high temperatures conforming to BS? Thank you in advance.
  6. T

    Fine dust on plastic pipe? (Newbie question)

    Hey guys, i'm new here so first of all hello :) i recently purchased some land, that came with a pretty old water well system, it used a simple plastic 1/4 inch hose as it's "pipe", to go down around 8-10 meters. anyway, i changed it all up (now using a submergible pump), My question is : once i...
  7. W

    installing plastic pipe central heating in bungalow

    just bought a bungalow which as 11 rads which i plan to replace and reinstall them with plastic pipe in the brick walls etc the property is 19 meters long and 7 meters wide the boiler is situated in the middle of the property and the boiler is a greenstar 28i junior 2014 model. question is i...
  8. W

    High pressure solvent welded plastic pipe

    Is I believe what this is. Posted a pic of some a while back and think Shaun identified it thus. Want to change the inlet and float valve the pipework pictured feeds. I know in both instances I could change washer but want to have a plan B and C. Am I likely to find that my fibre washers, hep...
  9. M

    Press fit plastic pipe

    I've got to move a radiator in a garden centre that's been installed using press fit fittings, not sure what they are or exactly what pipe or fittings have been used it is but it looks about 15mm to the naked eye. Any idea if Im likely to be able to use compression fittings or speed fit on the...
  10. P

    Repairing plastic pipe.

    The central heating in our house has been installed using 10mm Speedfit Barrier PB pipe. I think there is a leak in the pipework behind some plaster board (dot and dab) as there is a damp patch on the plasterboard (looks like a nail may have been put through it). If it is a nail hole, I guess I...
  11. Scott_D

    BTUs and 10mm plastic pipe

    Does anyone have any information on how many BTU 10mm plastic can carry? Thought there might have been a chart or graph to show length of pipe vs BTU it can carry but im struggling to find anything. Maybe because its depends on the pump? Its for HEP20 pipe and there is nothing in their...
  12. M

    Plastic pipe on hot/cold to boiler?

    What’s the protocol if we find plastic pipe to boilers(within 100mm)? Found one with the hot and cold piped right into the boilers tails?
  13. K

    Passable work or bodge job!?

    Hi, just trying to get an opinion on some plumbing the bathroom/kitchen fitter is in the process of fitting for our new sink, shower & rad. First pic is cold supply coming in through the wall from the toilet next door. There are double joists right under the stud wall, hence coming in hidden in...
  14. P

    plastic pipe stuck inside copper nut & pipe

    Advise urgently required! Whilst swapping over the filling valve in my toilet cistern the old plastic pipe thread has snapped and got stuck inside the copper nut and around the copper pipe ( hope this makes sense, have look at the attached photo ) Any suggestions to getting them separated? I...
  15. J

    Incoming mains black plastic pipe to 15mm copper

    Hi. Have a mid 1980’s house with the mains water coming in from underground via a black plastic pipe, of which the external diameter is 27mm. There does not appear to be any markings on it, but maybe some faint green. This goes into a 15mm copper pipe via a stop tap with compression...
  16. B

    can I power flush with plastic pipes in central heating

    Hi all can you power flush a central heating system which contains plastic pipe. I have copper just under the Combi boiler then 22mm/15mm plastic pipes then copper to radiator tails many thanks
  17. Ted808

    ever seen this? plastic pipe most probably from around 15+years ago

    Is this old Hep20 with brass push fittings and is is ok to use with the new white hep20 fittings and inserts? Cream pipe22mm and dark brown 15mm. Any thoughts guys? The 15mm says CARTOL ACORN-BP. I need to reroute, would like to use hep20 as replacement .
  18. P

    Plastic Pipe Cutter?

    Just wondering what the best way of cutting PVC overflow pipe is? I was looking at getting one of the ratchet cutters, but quite a few say they are not suitable for thin walled PVC pipe such as used for overflows?
  19. B

    Blocked new plastic pipe or other issue?

    Hi. We've just had a loft conversion done with a bedroom and shower room with a rad in each room. The rads are fed from 15mm pipes to bathroom rad on floor below and apart from tails to both rads and from existing copper pipe all new pipes are 15mm plastic with JG push fit connectors. Found the...
  20. M

    Hi, I work with aquatherm...

    Hi, Im Marie, Im not actually a plumber. Im a draughtsman, but I help out in production 50% of the time too... It helps to make sense of what I'm drawing! Our company work with aquatherm and make a product similar to a domestic boiler. Anyone else regularly working with this stuff?
Creating content since 2001. Untold Media.

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