[90 degree bends in LPG rigid copper pipe]

10 minutes ago, Alan de Enfield said:

It may be acceptable, but, being so small will it give the volume required by all your appliances 'all on at the same time' ?

 

Hi Alun, thanks for the question. I estimated an 8kW peak consumption (from a two ring burner and a gas grill + oven), using Table3 in PD 5482-2:2005 I calculated a pressure drop of 1.77mbar (max pressure drop they state is 2.5mbar).

[90 degree bends in LPG rigid copper pipe]

On 4/12/2016 at 22:53, Mike the Boilerman said:

 

Yes it does, if the installation is to comply with PD 5482-2005 part 3.

 

If you don't care about complying with that (it's only mandatory for RCD) then a BSS bod probably won't be bothered as I don't think wall thickness is mandated in the BSS.

 

Whether thick walling is a Good Idea technically is a whole nother discussion!

 

 

 

 

(Edit to remove the spurious word.)

I've been trawling through all the regs around LPG. I've had a look through PD 5482-2005 part 3 (via Manchester online library) and it doesn't specify a wall thickness in that document. However, the BS EN ISO 10239 document does state a minimum wall thickness. The 2008 versions of this standard required a wall thickness of 0.8mm but the document was revised in 2014 and now states that a 0.6mm thickness is acceptable (up to an OD of 12mm). AFAIK this means that standard 10mm microbore from screwfix is acceptable.

This point has come up on canalworld before now, but google searches seem to return the older posts stating that we must use the thicker imperial copper to comply with the standards. Please correct me if i'm wrong.