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pex
Cross-linked polyethylene, commonly abbreviated PEX, XPE or XLPE, is a form of polyethylene with cross-links. It is used predominantly in building services pipework systems, hydronic radiant heating and cooling systems, domestic water piping, and insulation for high tension (high voltage) electrical cables. It is also used for natural gas and offshore oil applications, chemical transportation, and transportation of sewage and slurries. PEX is an alternative to polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC) or copper tubing for use as residential water pipes.
I have a question that I’m hoping those of you who are experienced central heating engineers may be abler to throw some light on. But first I need to tell you about my system, and the problem I’ve been having. Just over 7years ago I had a new CH system installed in my small semi. I say new – in...
Hello. I'm new to this forum and I'm hoping to be able to learn some things as well as contribute as best I can.
This might seem like an odd query, but I need to determine what kinds of plumbing pipes I have, and approximately what percentage of each type. I'd appreciate any help with this...
What is the best way to unfreeze underground pex line, about 8 feet down, going from my well to my house ? I already pulled the pump up and saw it was frozen. If anybody has an idea on how to attack this i would really appreciate it. Thank you.
I have about 6 metres of 22mm PEX to run through concrete and understand I need to have it in flexible conduit to offer a bit of protection and allow the pipe to expand.
Is this the stuff you guys would use or are there other alternative products...
Fast one for the experts
Does the oxygen barrier prevent o2 from entering the pipe on lets say a negative flow or o2 out on a positive flow.or neither??
HI Plumbers,
I need some advice on our chased-in pipes. We had plumbers tell us an array of different things.
Questions:
1) Do copper pipes need insulation?
2) if so what type?
3) Do Pex pipes need insulation?
3) if so what type?
I know they have been done already but I'm going to...
I’ve had a towel heater installed in a bathroom and I’m curious as to if it’s up to code/reliable. The 15mm pex transitions from the old copper pipe all connected with compression fittings, inserts were used for the pex. I will be boxing the pipes in as I’m a carpenter but before I do I just...
Basic question - pex or copper for self build 100 sqm metre 2 story house.
It Is a budget build but will form part of a larger house for years to come.
Plan to do some basic plumbing myself, no gas or oil just water pipes.
which is a better option and why.
Thank you
I tried to replace a couple of taps but surprisingly they are screwed directly to the pex piping instead to the flexible tap connectors.
I'm no expert so I don't know if I can proceed as normal. I'm hesitant to just unscrew the nut because it looks like a permanent fitting glued to the pex and...
have a hot water boiler (was converted to steam before me). Want to run the oxygen Barrier pex under the bathroom floors for heat. Do these loops need a bleeder valve?
Thanks
I'm about to run water and heating pipes to what is going to be my new studio/garage building and trying to choose the type of pex for the job.
I would like to use blue and red for the cold and hot water but I have noticed that it only comes in 1/2" rather than 15mm.
Now, as I see pex and...
I am adding radiators to my 2-pipe central heating. The whole piping is copper 22mm and microbore, and I'm extending it with 15mm pex barrier pipe graded for CH.
I know that the first bit of pipes connected to the boiler must be copper, which is the case.
However, I couldn't find whether there...
UK rules.
Can I use PEX/ PCV/ plastic pipes instead of copper, when I replace hot water cylinder?
I want to replace old Tribune model with new Megaflo, both are unvented direct cylinder.
With new unit comes combination valve and all the bits and bobs.
Can I replace existing copper pipes...
Have an Inline Shut Off Valve with Compression Fittings that has developed a Leak.. The Valve actually serves No Useful purpose.. Because of limited access and no real wiggle room.. Could I Safely use a piece of Pex Hose and SharkBite Fittings to Replace the Valve completely ??
Hello all, my wife and I have recently purchased a house in Edinburgh (move in date 6th dec hopefully) and I have been working hard to get a plan done for a diy manifold and I shall do a complete refit of the bathroom. I plan to do it all myself bar the electrics and boiler connections. The...
Has anyone got any advise on this please.
Can I use a compression reducer to connect a 15mm TRV to a 10mm pex pipe?
Not sure if the compression would hold onto the pex pipe.
Or do I have to go from TRV > copper > pex.
Thanks,
Mark
Hello all,
I've bought a water pressure booster which works with 22mm pipe.
I have in my home a 20mm PEX pipe.
Can you help connect them ? (See picture of the booster)
Please specify exact connector/adaptors that I need.
Thanks a lot.
Hello All,
I hope that bringing attention to this `New product` from Uponor does not break any Forum rules ?
It is basically a new Pex pipe system where the user fits a `Collar` to the end of a piece of pipe [to limit the amount of pipe diameter expansion] - then expands the pipe diameter...
I hear about Pex a lot, even before I just started my course. I've also learned about Polyethylene piping, are they one and the same? (I'm assuming so as Pex is in Qualpex, but I wanted to ask nonetheless).
I'm pretty much a novice at DIY, fitting a Charnwood Country 8B woodburner with a back-boiler which puts a maximum of 7kW into the water, and the default radiator is 1.335kW.
I'd like to use 28mm PEX pipes, as they're so much cheaper than copper; but I don't know whether it's safe to do that...
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