End of the pipe line for gas engineers

[ianmcd]

RGI's make much more money from installs than maintenance.

Personally I dont agree with that,. so many just nailing boilers to walls for pennies these days, a decent repair engineer can earn good money, but you have to be good and trustworthy and know what you are doing, with so many large companies going bust , and so many poke and go , idiots doing work for pennies a decent engineer is worth their weight in gold , apart from me I am a fat git and would be worth a lot of gold

 

[mattylad]

I heard the guy on the vine show too, what an ass.
A victorian terrace with 22" solid walls cannot be insulated well.

Anyhoo, I hope it won't come to fruition otherwise wtf are warbitons and all other food manufacturers going to do?
If they have to change then that's me out of a job making gear for them.

I have 2 main questions about this idea.
1) What are Europe doing about this?
2) What difference will it really make in the grand scheme of things if the whole of the UK does it?

 

[durhamplumber]

RGI's make much more money from installs than repairs.

Not this one

 

[sxturbo]

Would the network even cope with hydrogen? I was under the impression that hydrogen molecules were smaller than natural gas, so more likely to leak out.

From articles I've read, the plastic pipe which the gas network have been installing the past 20 years is ok, plastic pipe before that and old cast iron and steel pipes cannot handle the hydrogen, but apparently there isn't many of them left.

It cannot be 100% hydrogen, but a mix of natural gas and hydrogen, which apparently creates almost zero carbon emissions

 

[bernardgreen]

but apparently there isn't many of them left.

Come to my village, there is lots of metal gas mains.

 

[Gasguru]

AFAIR the HSE and networks have a 20 or 30 year program to swap out the old pipework..there's still a way to go but much of what you might think is cast/steel has already been sleeved with MDPE.

 

[bernardgreen]

Cadent decided that 200 metres of leaky metal main along the High Street was to be by-passed, sealed and abandoned. Sleeving was not a viable option. even though the pipe was a straight run.

 

[Captain Nemesis]

can be fitted anywhere as long as its got filled cavity walls.

Why are those needed?

 

[Diver Fred]

It's been UK policy for some time; all new installs banned from 2025. Existing installations can (could?) continue to end of life.

 

[fixitflav]

It's been UK policy for some time; all new installs banned from 2025. Existing installations can (could?) continue to end of life.

Of what, natural gas boilers?

 

[fixitflav]

Would the network even cope with hydrogen? I was under the impression that hydrogen molecules were smaller than natural gas, so more likely to leak out.

I remembered something about hydrogen embrittlement of steel, so checked on Wiki. According to that steel with UTS < 1000MPa is not susceptible. The UTS of various grades of carbon steel are nowhere near 1000MPa, so on that basis steel pipes are OK.

 

[sxturbo]

It's been UK policy for some time; all new installs banned from 2025. Existing installations can (could?) continue to end of life.

only applies to new build properties at the moment

 

[Razor900]

Cadent decided that 200 metres of leaky metal main along the High Street was to be by-passed, sealed and abandoned. Sleeving was not a viable option. even though the pipe was a straight run.


View attachment 234023


View attachment 234024

Sleeving seriously reduces the internal bore of the pipe. There are lots of properties with 16mm insertions that don't give nearly the full rate they are supposed too. They probably decided that a new main was the best way to supply everyone

 

[ianmcd]

Sleeving seriously reduces the internal bore of the pipe. There are lots of properties with 16mm insertions that don't give nearly the full rate they are supposed too. They probably decided that a new main was the best way to supply everyone

In my BG days I remember a scheme on medium pressure, fed from both sides, gas main was 16mm, all joints were fusion welded, before electro fusion, so most of the pipe bore was a lot less than 16mm, still running fine to this day, that would have been about 30 years ago

 

[Old Salt]

Why are those needed?

I didn't say it the guy on the Jeremy Vine show said it.

If you think about it, it may be because it has some insulating properties.