6 inch gas pipes

[Agile]

Is that a matter of purging it with nitrogen before the gas?

 

[doitall]

Is that a matter of purging it with nitrogen before the gas?

Explain

Nitrogen is for purging the gas, this is a new install so not needed.

 

[ChrisR]

installation will need to be seperated into at least 5 sections,

Does that mean lots of 4 and 6 inch gas cocks?? £ £

 

[Maxxy]

Just re-looked over the quote, it was 300m of 4 inch, not 400m, so hopefully that'll just mean it needs to be 4 sections, which we have already accounted for. Weve already looked up the costs for pipe etc, the only thing we are not sure about at the moment is lifting the pipe into place. Maybe itll be cheaper to work with 3 metre flanged sections off of a scissor lift, than 6 metre sections needing specialist lifters? Any advice from people who have done this would be appreciated

 

[chrishutt]

Any advice from people who have done this would be appreciated

On a DIY forum?

 

[doitall]

Any advice from people who have done this would be appreciated

On a DIY forum?

I know of at least one on here and two on Argi that doit for a living Chris

Problem is the OP hasn't got back to him.

 

[kevplumb]

should be novel listening to him trying to work out the purge volume and the allowed leakage

 

[Maxxy]

should be novel listening to him trying to work out the purge volume and the allowed leakage

Didnt actually read my post did you. lol

I will then be looking to use a Corgi registered gas person to do the final connections to the heaters, and to purge the system and run all the checks.

Doitall has been really helpful, so as far as im concerned the topics dealt with, and ive made a new work contact

 

[doitall]

should be novel listening to him trying to work out the purge volume and the allowed leakage

Volumn is 9 and 20 cubic decimeters per meter respectively.

Therefor, 40m x 150mm = 0.77 m³, and 100m x 100mm = 0.9m³.

Permitted leak is zero.