06-04-2007, 09:42 AM
PEX is cross linked polyethylene and is used for hot/cold water applications. There is a HDPE plastic pipe specifically rated for gas application that has pretty much completely replaced the green plastic coated steel for service lines because of corrosion problems.
There is a flexible corrugated stainless steel tubing that is plumbed like PEX that has been approved by the gas industry and most jurisdictions but Hawaii?? It is corrugated stainless tubing with a poly outside coating so I suppose it could be mistaken for plastic. An example is here: http://gastite.com/products.php?cat=CSST&product=3_8&idlink=link3
Personally, I would stick to old fashioned black stainless pipe inside the house because it is bullet proof. No chance of an errant nail causing a leak during a re-model.
There is a flexible corrugated stainless steel tubing that is plumbed like PEX that has been approved by the gas industry and most jurisdictions but Hawaii?? It is corrugated stainless tubing with a poly outside coating so I suppose it could be mistaken for plastic. An example is here: http://gastite.com/products.php?cat=CSST&product=3_8&idlink=link3
Personally, I would stick to old fashioned black stainless pipe inside the house because it is bullet proof. No chance of an errant nail causing a leak during a re-model.
Larry